Adcom Home Theater System GTP 870HD User Manual

GTP-870HD Preamp/Processor  
User’s Manual  
G
T
P
-
8
7
0
H
D
volu  
me  
standby  
FM/AM  
up  
roo  
m t  
wo  
se  
on/  
off  
tup  
tune  
/pre  
set  
down  
sur mode  
ext 7.1  
CD  
tape  
video 4  
video 3  
video 2  
video 1  
• The latest version of the firmware is  
required to enable all functionality  
described in this manual.  
• Check the Adcom website  
updates.  
STOP  
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GTP-870HD Owner’s Manual  
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WARNING  
Important Safety Instructions  
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT  
EXPOSE THIS UNIT TO RAIN OR MOISTURE.  
Read all the safety and operating instructions before con-  
necting or using this unit.  
Retain this notice and the owner’s manual for future refer-  
ence.  
All warnings on the unit and in its operating instructions  
should be adhered to.  
All operating and use instructions should be followed.  
Do not use this unit near water. For example, near a bath-  
tub, washbowl, kitchen sink, laundry tub, in a wet base-  
ment, or near a swimming pool.  
The unit should be installed so that its location or position  
does not interfere with its proper ventilation. For example,  
it should not be situated on a bed, sofa, rug, or similar sur-  
face that may block the ventilation openings; or placed in a  
built-in installation, such as bookcase or cabinet, that may  
impede the flow of air through its ventilation openings.  
The unit should be situated away from heat sources such as  
radiators, heat registers, stoves, or other devices (including  
amplifiers) that produce heat.  
The unit should be connected to a power supply outlet only  
of the voltage and frequency marked on its rear panel.  
This Class I apparatus shall be connected to a MAINS socket  
outlet with a protective earthing connection.  
As the plug is used as the disconnect device, the disconnect  
device shall remain readily operable.  
CAUTION  
TO PREVENT ELECTRIC SHOCK DO NOT USE THIS POLARIZED  
PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER  
OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PRE-  
VENT BLADE EXPOSURE.  
THERE ARE NO USER SERVICEABLE PARTS IN THIS PRODUCT.  
DO NOT ATTEMPT SERVICING OF THIS UNIT YOURSELF. REFER  
SERVICING TO QUALIFIED SERVICE PERSONNEL.  
CAUTION POWER LINES  
Any outdoor antenna must be located away from all power lines.  
OUTDOOR ANTENNA GROUNDING  
If an outside antenna is connected to your tuner or tuner/pre-  
amplifier, be sure the antenna system is grounded so as to pro-  
vide some protection against voltage surges and built-up static  
charges. Section 810 of the National Electrical Code, ANSI/NFPA  
No. 701984, provides information with respect to proper ground-  
ing of the mast and supporting structure, grounding of the lead-in  
wire to an antenna discharge unit, size of grounding conductors,  
location of antenna discharge unit, connection to grounding elec-  
trodes, and requirements for the grounding electrode.  
The power supply cord should be routed so that it is not  
likely to be walked on or pinched, especially near the plug,  
convenience receptacles, or where the cord exits from the  
unit.  
Clean unit only as recommended in its instruction manual.  
The power supply cord of the unit should be unplugged from  
the wall outlet when it is to be unused for a long period of  
time and during electrical storms.  
Care should be taken so that objects do not fall, and liquids  
are not spilled, into the enclosure through any openings.  
This unit should be serviced by qualified service personnel  
when:  
a. The power cord or the plug has been damaged; or  
b. Objects have fallen, or liquid has been spilled, into the  
unit; or  
a. Use No.10 AWG (5.3 mm2) copper, No.8 AWG (8.4 mm2) alu-  
minum, No.17 AWG (1.0 mm2) copper clad steel or bronze  
wire, or larger, as a ground wire.  
b. Secure antenna lead-in and ground wires to house with stand-  
off insulators spaced from 46 feet (1.221.83 m) apart.  
c. Mount antenna discharge unit as close as possible to where  
lead-in enters house.  
d. Use jumper wire not smaller than No.6 AWG (13.3 mm2) cop-  
per, or the equivalent, when a separate antenna grounding  
electrode is used. See NEC Section 810-21 (j).  
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELEC-  
TRICAL CODE INSTRUCTIONS CONTAINED IN ARTICLE 810. RA-  
DIO AND TELEVISION EQUIPMENT.  
c. The unit has been exposed to rain, or liquids of any  
kind; or  
d. The unit does not appear to operate normally, or exhib-  
its a marked change in performance; or  
e. The device has been dropped, or the enclosure dam-  
aged.  
Regulatory Information  
FCC Part 15 This product has been tested and found to comply  
with the limits for a Class B digital device, pursuant to Part 15  
of the FCC Rules. These limits are designed to provide reason-  
able protection against harmful interference when the product  
is operated in a residential installation. This product generates,  
uses, and can radiate radio frequency energy and, if not installed  
and used in accordance with the instruction manual, may cause  
harmful interference to radio communications. However, there is  
no guarantee that interference will not occur in a particular in-  
stallation. If this product does cause harmful interference to ra-  
dio or television reception, which can be determined by turning  
the product off and on, the user is encouraged to try to correct  
NOTE TO CATV SYSTEM INSTALLER  
This reminder is provided to call the CATV system installer’s at-  
tention to Article 82022 of the National Electrical Code that pro-  
vides guidelines for proper grounding and, in particular, specifies  
that the cable ground shall be connected to the grounding system  
of the building, as close to the point of cable entry as practical.  
the interference by one or more of the following measures:  
Reorient or relocate the receiving antenna.  
Increase the separation between the product and receiver.  
Connect the product into an outlet on a circuit different  
from that to which the receiver is connected.  
Consult the dealer or an experienced radio/TV technician  
for help.  
GTP-870HD Owner’s Manual  
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Chapter 1 - Welcome  
Introduction  
Unpacking the GTP-870HD  
Introducing Adcom’s new take on the Preamp/Pro-  
cessor: the no-nonsense GTP-870HD.  
Before you begin, please take a moment to make  
sure the following items were included with your  
GTP-870HD:  
Who hasn’t grown weary of manufacturers claiming  
every product on offer as redefining some elusive  
“standards” or idealizing the ever popular catch-all,  
“state of the art?” Well, so have we.  
GTP-870HD  
Remote control  
1.5V AAA batteries (4)  
Audio/video cable  
FM antenna  
FM antenna adapter  
AM loop antenna  
Power cord  
Warranty card & statement  
Quick Reference Guide  
User’s guide CD  
So instead of assaulting you with yet another slew  
of marketing buzzwords and hyperbolic claims, we’ll  
just proudly introduce to you Adcom’s latest no-non-  
sense product: The GTP-870HD Preamp/Processor.  
Intended to satisfy your requirements for a conve-  
nient, uncomplicated home entertainment solution,  
here’s a single-chassis package of Adcom separates-  
performance pedigree, with plenty of power and the  
stability into low impedance loads to drive any loud-  
speaker encountered.  
Offering a comprehensive list of useful features and  
digital signal processing modes, the GTP-870HD for-  
goes costly cosmetic flourishes in exchange for a  
long-lasting high level of overall build quality, with  
changeable internal circuit-card construction and  
functioning serial port communication for future u  
dates and upgrades.  
No hype, no nonsense. Just superior performance  
and lasting value for your money. What you’ve come  
to expect from Adcom.  
Key Features  
HDMI™ video switcher routes all HDMI and upcon-  
verted legacy sources (composite, S-video, and  
component video) through a single HDMI cable  
Built in Video DSP converts standard NTSC 480i  
and PAL 576i signals to the output resolution of  
your display device (up to 1080p)  
Dolby Digital EX, DTS ES and Pro Logic IIx  
Upgradable: Hardware and software-addressable  
for accommodation of future advancements  
Low voltage protection minimizes effects of  
power line dips  
Flexible bass management & system calibration  
Independent Room 2 Out with advanced equal-  
ization  
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Placing the GTP-870HD  
About the Remote Control  
Place the GTP-870HD on a stable, vibration-free sur-  
face away from moisture and out of direct sunlight.  
Your Adcom dealer will be pleased to show you many  
different types of audio/video equipment racks and  
cabinets.  
The GTP-870HD comes with a universal, programma-  
ble, backlit, ergonomic remote control that is ready  
for action in every sense of the word.  
For an overview of each remote button, see page  
8.  
To program the remote, see page 46.  
The GTP-870HD’s rear panel is the central connect-  
ing point for almost every component in your audio/  
video system. Be sure to leave sufficient room be-  
hind the rear panel to accommodate cables, antenna  
leads, power cords, etc. We recommend a minimum  
of 5 inches of free space for maximum flexibility.  
Inserting the Remote Batteries  
1
2
3
Remove the cover on the back panel of the re-  
mote control.  
Insert four AAA alkaline batteries, paying atten-  
tion to the correct polarities.  
Replace the cover.  
A distance of 1/2” should be maintained around the  
GTP-870HD for ventilation. Keep your GTP-870HD in  
a room where temperatures remain fairly moderate,  
and never cover it with table cloths, curtains, news-  
papers, etc., to avoid potential overheating.  
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Front Panel Overview  
The following is an overview of the GTP-870HD front panel.  
1
Standby button  
Powers the GTP-870HD on/off (Standby mode).  
7
8
Ext 7.1 button  
Selects the Ext 7.1 inputs, usually connected to  
a DVD, DVD-Audio, or SACD player.  
The rear panel power switch must be on  
(1) for this button to function.  
The Power LED glows amber in Standby  
mode and red in On mode.  
Surr Mode button  
Steps through all available surround modes  
(e.g., Dolby Digital, DTS, etc.) for the selected  
input.  
2
3
Room Two On/Off button  
Activates the GTP-870HD’s Zone 2 outputs,  
usually connected to an amplifier/receiver in a  
second room.  
Your selection will override the default  
surround mode for the input.  
9
FM/AM button  
Selects Tuner mode. Press repeatedly to switch  
between the FM and AM tuner bands.  
Room Two Setup button  
Displays the Zone 2 configuration menu.  
Press repeatedly to step through the Room  
2 menu options and use the Volume knob  
to make selections.  
10 Tune/Preset button  
In Tuner mode, switches between manual and  
preset tuning.  
4
Video 1~4 buttons  
Selects the Video 1~4 inputs.  
11 Front panel display  
Selecting an input activates its audio, vid-  
eo, and configuration settings.  
Displays GTP-870HD menus and status informa-  
tion (see page 12).  
5
6
Tape button  
Monitors the Tape output, usually connected to  
a recording device (e.g., a VCR or tape deck).  
12 Up/Down buttons  
In Tuner mode, selects stored presets or manu-  
ally scans the selected tuner band.  
CD button  
13 Volume knob  
Selects the CD input, usually connected to a  
CD player.  
Adjusts the volume level for the selected input.  
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2
Source Selector buttons  
Remote Control Overview  
Vid 1~4 - Selects the Video 1, Video 2, Vid-  
eo 3, or Video 4 input, including the video,  
audio, and configuration settings associated  
with that input. Also sets the remote control  
to the command set associated with that in-  
put (see page 47).  
The following is an overview of the GTP-870HD re-  
mote control buttons and their operations.  
CD - Selects the CD input, including all con-  
figuration settings associated with that in-  
put. Also sets the remote control to the CD  
command set (see page 48).  
Tuner - Selects the Tuner input, including all  
configuration settings associated with that  
input. Also sets the remote control to the  
Tuner command set (see page 49).  
Rm 2 - Selects the zone 2 outputs, includ-  
ing all configuration settings associated with  
that output. Also sets the remote control to  
the Room 2 command set (see page 49).  
3
4
Power button  
Powers the GTP-870HD on and off (Standby).  
The rear panel power switch must be on (1)  
for this button to function.  
Input Select buttons  
Ext7.1 - Selects the Ext 7.1 inputs, usually  
connected to a DVD, DVD-Audio, or SACD  
player.  
Tape - Monitors the Tape output, usually  
connected to a recording device (e.g., a VCR  
or tape deck).  
5
6
7
8
Play button  
Programmable button. Can be taught to start  
playback of the selected source component.  
Arrow buttons  
Use to navigate the front panel display and on-  
screen menus.  
Pause button  
Programmable button. Can be taught to pause  
playback of the selected source component.  
Note: The GTP-870HD has a rogrammable remote  
that can be “taught” to control virtually any compo-  
nent in your home theater system. To program the  
remote for each input source, see page 46.  
0-9, 10+ buttons  
Programmable buttons. Can be taught to make  
direct selections (e.g., of DVD chapters or CD  
tracks) for the selected source component.  
1
Main button  
Selects the GTP-870HD itself, and sets the re-  
mote control to the command set associated  
with the main unit (see page 47).  
9
FM/AM/HD button  
In Tuner mode, switches between the FM and AM  
tuner bands.  
In Main mode, pressing any button on the re-  
mote control will cause the Main button to  
glow indicating that the GTP-870HD is active.  
10 Mem button  
In Tuner mode, stores the selected station as a  
preset.  
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11 Bass button  
23 Ch-Trim button  
When Tone Control is on (by pressing the By-  
pass button), displays a Bass adjustment dis-  
play. Use /to set the desired Bass level.  
Displays the Channel Balance menu, which al-  
lows you to make custom adjustments to indi-  
vidual speaker levels during playback. A test  
tone option is provided.  
12 Treble button  
When Tone Control is on (by pressing the By-  
pass button), displays a Treble adjustment dis-  
play. Use /to set the desired Treble level.  
24 Tune -/+ buttons  
In Tuner mode, manually scans the selected  
tuner band, or selects stored presets.  
25 Test button  
13 Sleep button  
Plays a test tone for a few seconds in each  
speaker to aid in setting channel balance.  
Sets the sleep timer to power the GTP-870HD  
off after a specified length of time (30~180  
minutes).  
26 St/Mon button  
In Tuner mode, switches between Stereo and  
Mono reception.  
14 Backlight button  
Turns the remote control backlight on.  
Choosing Mono may improve reception of a  
poor quality FM station.  
The backlight times out after ~8 seconds.  
15 Mute button  
27 Seek button  
Mutes the audio for the selected input.  
In Tuner mode, scans the selected band and  
automatically tunes in stations with strong sig-  
nals.  
16 Volume /buttons  
Adjust the volume level for the selected input  
from -80 dB to +18 dB.  
28 Preset/Tune button  
In Tuner mode, switches between manual and  
preset tuning.  
17 Setup button  
Displays the GTP-870HD Setup menu on the  
front panel and on-screen displays.  
29 Sync button  
Displays the Lip Sync Delay menu. If the pic-  
ture and soundtrack are out of sync, use /  
to delay the audio signal from 0-169mS.  
18 Menu button  
Programmable button. In Main mode, displays  
the Setup menu. Can be taught to display the  
Disc Menu on your DVD player.  
While the Lip Sync Delay menu is displayed,  
press the Sync button again to toggle lip  
sync delay on and off.  
19 Select button  
Displays the Picture Format menu. Use /  
to select a preset format (Auto, Full, Zoom,  
Squeeze, or Non Linear Stretch) to suit your  
display device and source material.  
30 Dynamic Range button  
Adjusts the dynamic range; i.e., the difference  
between the loudest and quietest passages in  
an audio soundtrack.  
AlsousetheSelectbuttontomakeselections  
in setup menus and on-screen displays.  
The default setting is 100% (maximum  
range).  
20 Stop button  
31 Bypass button  
Programmable button. Can be taught to stop  
playback of the selected source component.  
Toggles Tone Control on and off. When Tone  
Control is on, use the Bass and Treble buttons  
to manually adjust the tone.  
21 Mode button  
Steps through all available surround modes  
(e.g., Dolby Digital, DTS, etc.) for the selected  
input.  
32 Dim button  
Steps through three brightness level for the  
front panel display.  
The Mode button overrides the preset sur-  
round mode for the selected input.  
33 Macro buttons (1~4)  
Programmable buttons. Can be taught to store  
and execute up to ten button presses; see page  
52.  
22 TH-EQ button  
Turns Theater EQ sound on and off.  
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Rear Panel Overview  
The following is an overview of the GTP-870HD rear panel.  
 
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1
2
Tuner inputs  
3
Tape inputs/outputs  
AM - Connects to an AM loop antenna (in-  
In (R/L) - Connects to the line outputs of  
a tape player or other analog audio source  
component.  
cluded).  
FM - Connects to an FM antenna (includ-  
ed).  
Out (R/L) - Connects to the line inputs of  
a tape recorder or other analog audio re-  
cording component. Press the Tape button  
on the remote control or front panel to  
monitor the tape output.  
Zone 2 outputs  
Variable (R/L) - Connects to the line in-  
puts of a power amplifier in a second room.  
With this connection, use the GTP-870HD  
remote to adjust the volume.  
Fixed (R/L) - Connects to the line inputs  
of an audio receiver in a second room.  
With this connection, use the secondary  
receiver’s controls to adjust the volume.  
12V DC trigger - Use to power on the sec-  
ondary amplifier/receiver when the Room  
2 button is pressed.  
4
5
CD inputs (R/L)  
Connects to the line outputs of a CD player or  
other analog audio source component.  
Ext 7.1 inputs  
Connects to the multi-channel analog outputs  
of a DVD, DVD-Audio, or SACD player.  
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6
Analog audio inputs/outputs  
13 Digital audio inputs  
Audio 1~4 inputs (R/L) - Connects to the  
line outputs of up to four analog audio  
source components.  
Audio 3~4 outputs (R/L) - Connects to the  
line inputs of up to two analog audio re-  
cording components.  
Coaxial 1~3 (75 ohm) - Connects to the  
coaxial digital audio outputs of up to three  
digital audio source components.  
Optical 1~3 - Connects to the optical digi-  
tal audio outputs of up to three digital au-  
dio source components.  
Aux output (R/L) - Connects to the line  
inputs of an analog audio component.  
14 Voltage switch  
Sets the GTP-870HD voltage to 120V (U.S. stan-  
dard) or 230 V (international standard).  
7
8
9
Composite/S-video inputs/outputs  
Video 1~4 inputs (CVBS/S-video) - Con-  
nects to the Composite/S-video outputs of  
up to four video source components.  
Video tape output (CVBS/S-video) -  
Connects to the Composite/S-video inputs  
of a video recording component.  
15 Main power switch  
Switches the GTP-870HD’s main power on (1)  
or off (0).  
16 AC input  
Connects the GTP-870HD to a standard electri-  
cal outlet using the supplied power cord.  
Monitor outputs/HD bypass transcoder  
Video out (CVBS/S-video) - Connects to  
the Composite/S-video inputs of a TV,  
monitor, or other display device.  
17 Balanced audio outputs  
Connects to the balanced audio inputs of a  
power amplifier using XLR cables to feed up to  
seven speakers (RF/RS/RB/C/LB/LS/LF).  
Video out (Y/Pb/Pr) - Connects to the  
Component/Progressive Scan inputs of a  
TV, monitor, or other display device.  
18 Component Video inputs  
HDMI switcher/scaler  
Video 1~4 (Y/Pb/Pr) - Connects to the  
Component/Progressive Scan outputs of  
up to four video source components.  
Video 1~2 in - Connects to the HDMI out-  
puts of an HDMI-compatible source com-  
ponent, such as a DVD player, cable box,  
satellite receiver, etc.  
19 Subwoofer output  
Monitor output - Connects to the HDMI  
inputs of an HDMI-compatible display de-  
vice.  
Connects to a powered subwoofer for all  
speaker configurations.  
20 7.1 Preamp outputs  
10 Zone 2 IR input  
Connects to the 7.1-channel inputs of a power  
amplifier.  
Connects to an IR remote sensor to control the  
GTP-870HD from Room 2.  
11 RS232 control  
Use to control the GTP-870HD with a PC or  
home automation system or to upgrade the  
receiver’s firmware.  
12 Main controls  
Main IR input - Use to connect a remote  
IR sensor to control the GTP-870HD if the  
front panel display is obstructed (e.g., be-  
hind closed doors).  
Main 12V DC trigger - Used to power on  
a compatible component (e.g., an ampli-  
fier/receiver or motorized screen) when  
the GTP-870HD is turned on. This trigger is  
programmable and can be associated with  
a specific device.  
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Display Overview  
The following is an overview of the GTP-870HD on-screen and front panel displays.  
VIDEO 1  
COAXIAL 1  
DOLBY D  
-40.0 dB  
On-Screen Display  
Front Panel Display  
1
2
Video source  
Displays the selected video source.  
Notes:  
The on-screen display and front panel display  
show the same information; however, in setup  
menus only one menu item is shown at a time on  
the front panel display.  
Audio source  
Displays the selected audio source.  
The on-screen display times out after ~5 seconds.  
The front panel display remains visible at all  
times.  
In Tuner mode, displays the selected tuner  
frequency.  
To dim the front panel display, press the Dim but-  
ton on the remote control.  
3
4
Surround mode  
Displays the selected Surround mode.  
To step through Surround modes, press the  
Sur Mode button on the front panel or the  
Mode button on the remote control.  
Volume level  
Displays the selected volume level.  
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Chapter 2 - Connections  
Connections Overview  
Before You Begin  
The GTP-870HD is the heart and soul of your en-  
tertainment system. All roads lead to it (from your  
input devices), and all roads lead from it (to your  
output devices). In this chapter, you will connect the  
GTP-870HD to the various components in your home  
theater system. These connections are presented in  
three stages:  
Before you begin connecting your devices, it is recom-  
mended that you read all instructions, including the  
instructions for each device you plan to connect.  
For complex setups, it is useful to draw both a  
logical and physical diagram of how and where  
you plan to set up your components.  
DO NOT CONNECT THE GTP-870HD POWER  
CORD, DEVICE POWER CORDS OR TURN THE  
POWER TO THE GTP-870HD OR DEVICES UNTIL  
ALL GTP-870HD AND DEVICE CONNECTIONS  
ARE COMPLETE. CONNECTING OR DISCON-  
NECTING INPUT OR OUTPUT DEVICES WHILE  
THE PREAMP AND/OR THE DEVICES ARE POW-  
ERED CAN RESULT IN SEVERE DAMAGE TO THE  
PREAMP AND/OR THE DEVICE.  
Input Connections  
These are the input connections for your source com-  
ponents, such as DVD, CD and tape players; cable  
boxes, satellite receivers and HDTV tuners; media  
PCs and iPod docking stations; or antennas for AM &  
FM broadcast reception:  
AM/FM antennas....................................14  
Basic audio/video components (including  
Media PCs and iPod docking stations)...........15  
DVD players .........................................16  
Component/Progressive Scan components .....17  
Digital audio components.........................18  
HDMI components..................................19  
External decoders................................. 20  
CD/Tape players................................... 21  
About Audio Cables  
RCA Cables - Use for stereo audio connec-  
tions. Match red to red and white to white.  
Digital coaxial cables - Use for digital au-  
dio connections.  
Digital optical cables  
(aka “Toslink”) - Use  
as an alternative  
Output Connections  
to coaxial cable  
These are the output connections for devices that  
display the video imagery, produce sound, or record  
the video and audio signals:  
for digital audio  
connections.  
XLR cables - Use  
TV/Monitors........................................ 22  
Speakers............................................ 23  
Amplifiers (XLR) ................................... 24  
Amplifiers/Subwoofers (RCA).................... 24  
Video recorders ................................... 26  
Tape recorders..................................... 27  
Secondary amplifiers/receivers ................. 28  
for amplifier con-  
nections.  
About Video Cables  
Video cables - Use for composite video  
connections. Match yellow to yellow.  
S-Video cable - Use for higher qual-  
ity video connections to standard  
TVs and analog components.  
Component video cables - Use for best qual-  
ity analog video connections to TVs and com-  
ponents. Match  
Other Connections  
These are the devices that control or power your sys-  
tem, including:  
IR sensors........................................... 29  
Triggers ............................................. 29  
PC/Control systems ............................... 29  
Power sources ..................................... 30  
green, blue, and  
red respectively.  
HDMI cables - Use  
for superior, all-  
digital audio/video  
quality to and from  
HDMI compatible  
components.  
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AM/FM Antenna Connections  
Follow these steps to connect the supplied AM/FM  
antennas to the GTP-870HD.  
Connecting the AM Loop Antenna  
1
Assemble the antenna.  
Rotate the base until it snaps into place.  
Connect the antenna.  
2
Locate the AM antenna inputs.  
Press the lever next to one of the terminals  
and insert one of the antenna leads into the  
terminal. Release the lever to lock the lead  
in place.  
Repeat for the other lead.  
3
Position the antenna for best reception.  
AM Loop Antenna  
To mount the antenna permanently, use  
screws through the two holes in the base.  
Connecting the FM Antenna  
1
2
3
Assemble the antenna.  
Connect the supplied adapter to the FM an-  
tenna as shown.  
Connect the antenna.  
Locate the FM antenna input, and securely  
attach the FM adapter.  
Position the antenna for best reception.  
Adapter  
Fully extend the antenna and experiment  
with its position to obtain the strongest sig-  
nal. You can attach it to a wall or other sur-  
face (e.g., using push pins).  
FM Antenna  
The supplied antenna is for indoor use only.  
AM  
FM  
Antenna  
Input  
Antenna  
Input  
Notes:  
 
To switch to Tuner mode,  
press the Tuner button on the  
remote control, or the FM/AM  
button on the front panel.  
For Tuner operations, see page  
60.  
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2
Connect video.  
Basic Audio/Video Connections  
Using a composite video cable, connect the  
video output on your source component to  
the video input on the GTP-870HD.  
For higher quality video, use an S-video cable  
to connect the S-video output on the source  
component to the S-video input on the GTP-  
870HD.  
This section provides a general connection method  
that is suitable for virtually any audio/video source  
component, including:  
DVD players  
Laser disc players  
CableTV boxes  
Satellite receivers  
HDTV set-top boxes  
VCRs (see notes below)  
PVRs  
3
4
Connect audio.  
Using RCA cables, connect the audio outputs  
on your source component to the audio in-  
puts on the GTP-870HD.  
Configure your input settings.  
See page 33.  
Media PCs  
iPod docking stations  
For Advanced Connections:  
Connecting Audio/Video Components  
Depending on the capabilities of your components,  
follow these links to add some sizzle to these basic  
connections:  
1
Choose a Video input (1~4) for your component.  
A typical scenario might be:  
Video 1 - DVD or Laser disc player.  
Video 2 - Digital set-top box (CableTV, satel-  
lite receiver, or HDTV tuner).  
For upgraded DVD connections, see page 16.  
For Component/Progressive Scan video connec-  
tions, see page 17.  
Video 3 & 4 - Device with dual playback/re-  
cording capability (e.g., VCR, DVD Recorder,  
PVR, etc.).  
For digital audio connections, see page 18.  
For HDMI connections, see page 19.  
For recording connections, see pages 26 and 27.  
Video 1 Video 2  
Video 4 Video 3  
Input  
Input  
Input  
Input  
Notes:  
If you plan to use a VCR as an  
input device, it MUST have an  
integral Time Base Corrector!  
To select the source compo-  
nent you connected, press the  
corresponding Video 1~4 but-  
ton on the remote control or  
front panel.  
 
�  
To configure your video source,  
see page 33.  
For basic audio/video playback  
operations, see page 56.  
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DVD Player Connections  
The GTP-870HD is a movie lover’s dream. Choose  
from the following special options when connecting  
your DVD player.  
Component/Progressive Scan Connections  
To take the video quality up a notch, use your DVD  
player’s Component/Progressive Scan outputs.  
See page 17.  
Digital Audio Connections  
For crystal-clear multi-channel digital audio, use  
your DVD player’s digital audio outputs.  
See page 18.  
HDMI Connections  
If your DVD player supports HDMI, you’re in for an  
all-digital audio/video feast.  
See page 19.  
External 7.1 Connections  
If your DVD player supports DVD-Audio or SACD play-  
back, use the External 7.1 inputs.  
See page 20.  
Component/  
Progressive  
Scan Video  
Inputs  
Ext. 7.1  
Audio  
Inputs  
Digital  
Audio  
Inputs  
HDMI  
Inputs  
Notes:  
These superior quality connec-  
tions are covered in detail on  
pages 17-20.  
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Component/Progressive Scan Connections  
The GTP-870HD features four Component video in-  
puts for connection to DVD players, digital CableTV  
boxes, digital satellite receivers, HDTV receivers/  
tuners, and more. Component video is the best qual-  
ity analog connection method to an HDTV display.  
Special Note on Progressive Scan DVD Players  
If you want to use the GTP-870HD’s built-in video  
scaling capability, you MUST set the output of your  
Progressive Scan DVD player to standard 480i resolu-  
tion. Extended Definition (480p) and High Definition  
analog sources connected to the component video  
inputs are “bypassed” (i.e., sent to the component  
output) as is—NOT scaled.  
Component/Progressive Scan Connections  
1
Choose an available Component Video input  
(1~4).  
2
Connect Component video cables.  
Using a set of Component video cables, con-  
nect the Y/Pb/Pr outputs on your source de-  
vice to the corresponding Y/Pb/Pr inputs on  
the GTP-870HD.  
Be sure to match the red, green, and blue  
connectors accordingly.  
Component Video/  
Progressive Scan  
Inputs  
Notes:  
To select the Component/Pro-  
gressive Scan inputs, press  
the corresponding Video 1~4  
button on the remote control  
or front panel.  
To connect the Component/  
Progressive Scan outputs to  
your TV, see page 22.  
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Digital Audio Connections  
The GTP-870HD features six digital audio inputs—  
three coaxial and three optical—to receive multi-  
channel bitstreams from your DVD player or other  
digital audio source component.  
Connecting Digital Audio Components  
1
2
Choose an available digital audio input.  
Connect digital audio cable(s).  
Using a digital coaxial audio cable, connect  
the coaxial output on your source device to  
the corresponding coaxial input on the GTP-  
870HD.  
Alternatively, use an optical (Toslink) cable  
to connect the optical output on your source  
device to the corresponding optical input on  
the GTP-870HD.  
3
Associate the digital audio input with a Video in-  
put.  
See page 33 to associate the digital audio  
input with the Video 1-4 or CD input.  
Coaxial  
Digital Audio  
Inputs 1~3  
Optical  
Digital Audio  
Inputs 1~3  
Notes:  
The digital audio inputs are  
assignable to the Video 1-4 or  
CD inputs; see page 33.  
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Connecting HDMI Components  
HDMI Connections  
1
2
Choose an available HDMI input.  
Connect HDMI cable(s).  
About HDMI  
Using an HDMI cable, connect the HDMI out-  
put on your source device to one of the HDMI  
inputs on the GTP-870HD.  
HDMI (High Definition Multimedia Interface) is an ad-  
vanced audio/video connection method that transfers  
full-bandwidth, uncompressed digital audio and video  
signals over a single cable.  
3
4
Assign the HDMI input to an input source and con-  
figure it.  
See pages 33-35.  
As a result, pure digital signals can pass unfettered  
from your HDMI-compatible source components to  
the GTP-870HD and out to your digital TV for superior  
picture and sound quality.  
Connect the HDMI output to your TV.  
See page 22.  
About the HDMI Scaler  
The GTP-870HD is more than just a switch for HDMI  
source components. The GTP-870HD comes with a  
built-in scaler, a powerful video signal processor that  
allows you to scale the 480i or 576i NTSC/PAL inputs  
of your source components and output the precise  
resolution for your display device up to 1080p.  
Tip  
The HDMI connections pass  
both audio and video signals  
video 1  
in  
from your source device to your  
output device; however, to use  
the full audio processing power  
of the GTP-870 we recommend  
that you connect a separate  
audio cable (analog or digital)  
from your source device to the  
appropriate input on the  
monitor output  
That means you can run your legacy video sources  
through the GTP-870HD to your HDMI display device  
through a single cable. The powerful, integrated pro-  
cessor deinterlaces and scales standard NTSC/PAL  
signals to the native resolution of your display .  
video 2  
in  
GTP-870. See page 15 for analog  
audio connections or page 18  
for digital audio connections.  
HDMI switcher  
HDMI  
Inputs  
Notes:  
The HDMI inputs are assignable  
to any source; see page 33.  
To connect the HDMI output to  
your TV, see page 22.  
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External Decoder Connections  
If you’re a true audiophile, you’re probably famil-  
iar with DVD-Audio and SACD, multi-channel audio  
formats that require their own decoding and unique  
connection methods. Follow these steps to connect  
a DVD, DVD-A, or SACD player with up to 7.1-channel  
analog outputs.  
Tip  
The External 7.1 inputs  
bypass the internal  
Analog to Digital  
Converter.  
RF  
RS  
RB  
C
LF  
LS  
LB  
S
Connecting a DVD-A/SACD Player  
1
Using eight RCA cables, connect the 7.1 channel  
analog audio outputs from your DVD player to the  
corresponding Ext 7.1 inputs on the GTP-870HD.  
If your DVD player has 5.1-channel analog out-  
puts, use six RCA cables and omit the RB and LB  
connections.  
As a result, they can also  
be used as a “high-end”  
analog 2-channel input  
for those who desire a  
‘directanalog input.  
ext 7.1 inputs  
2
Ext. 7.1  
Inputs  
Notes:  
To switch to External 7.1  
mode, press the Ext 7.1 button  
on the remote control or front  
panel.  
 
For Ext 7.1 operations, see  
page 56.  
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CD/Tape Player Connections  
Follow these steps to connect a CD or tape player to  
the GTP-870HD.  
Connecting a CD Player  
1
Using RCA cables, connect the audio outputs  
on your CD player to the CD inputs on the GTP-  
870HD.  
If your CD player is equipped with a digital  
audio output (e.g. to play back a DTS CD),  
see Digital Audio Connections on page 18.  
Connecting a Tape Player  
1
Using RCA cables, connect the audio outputs on  
your tape player to the Tape inputs on the GTP-  
870HD.  
Tape  
Input  
CD  
Input  
Notes:  
To switch to CD mode, press  
the CD button on the remote  
control or front panel.  
To switch to Tape mode, press  
the Tape button on the remote  
control or front panel.  
For CD configuration settings,  
see page 33.  
For CD operations, see page  
56.  
For digital audio connections,  
see page 18.  
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Component Video Connections  
TV/Monitor Connections  
1
Using a Component video cable, connect the Y/  
Pb/Pr outputs on the GTP-870HD to the corre-  
sponding Y/Pb/Pr inputs on your digital display  
device.  
There are four ways to connect the GTP-870HD to a  
TV, monitor, or other display device:  
2
Be sure to match the red, green, and blue con-  
nectors accordingly.  
Composite Video  
S-Video  
Component/Progressive Scan Video  
HDMI  
HDMI Connections  
1
Using an HDMI cable, connect the HDMI output  
on the GTP-870HD to the corresponding HDMI in-  
put on your digital display device.  
The built-in HDMI switcher/scaler allows you to  
view both HDMI source components and upcon-  
verted legacy sources (composite, S-video, and  
Component video) on your digital display de-  
vice.  
Composite Video Connections  
1
Using a video cable, connect the Monitor output  
on the GTP-870HD to the video input on your  
display device.  
2
S-Video Connections  
1
For higher quality video, use an S-video cable to  
connect the Monitor output on the GTP-870HD to  
the S-video input on your display device.  
On-Screen Display (OSD) Notes:  
Component  
Video Out  
Video/  
S-Video Out  
HDMI  
Out  
VIDEO 1  
COAXIAL 1  
DOLBY D  
-40.0 dB  
The OSD is always available  
on the Composite and S-video  
outputs.  
The OSD is always available on  
the Component video out-  
puts, EXCEPT when the input  
signal is higher than standard  
(NTSC/PAL) resolution. If so,  
the GTP-870HD switches from  
standard to bypass mode and  
the OSD will not appear. How-  
ever, you can still access the  
Setup menus by pressing the  
Setup button (which causes the  
GTP-870HD to switch back to  
standard mode).  
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Speaker Placement  
TV  
C
Placing your Speakers  
To enjoy the full effect of your home theater system,  
it is recommended that you connect a complete set  
of 7.1-channel surround sound speakers, including:  
LF  
RF  
Front Speakers (LF/RF)  
Center Speaker (C)  
Surround Speakers (LS/RS)  
Surround Back Speakers (LB/RB)  
Subwoofer (S)  
7
.1  
If that’s not possible, the next best thing is a 5.1-  
channel setup, including:  
S
Front Speakers (LF/RF)  
Center Speaker (C)  
Surround Speakers (LS/RS)  
Subwoofer (S)  
5
LS  
RS  
.1  
Refer to the diagrams at right for approximate place-  
ment of your speakers within each of these scenar-  
ios.  
RB  
LB  
While the above arrangements are ideal, the system  
is flexible enough to accommodate virtually any com-  
bination of speakers, with the minimum setup being  
two front speakers.  
7.1 Speaker Placement  
TV  
LF  
RF  
C
S
Notes:  
The best speaker placement for your particular room  
will depend on its size, furnishings, seating arrange-  
ment, and the acoustical properties of the space,  
including wall type, coverings, and various other  
factors.  
LS  
RS  
You will have to experiment with various placement  
options to determine the best configuration for your  
specific situation.  
If space permits, install surrounds 2-3 feet above  
viewers to minimize localization effects.  
5.1 Speaker Placement  
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Connecting a 5.1-Channel Amplifier (XLR)  
Amplifier Connections (XLR)  
1
Using five XLR cables, connect the balanced au-  
dio outputs from the GTP-870HD to the corre-  
sponding XLR inputs on your amplifier.  
Follow these steps to connect the GTP-870HD to a  
power amplifier using the balanced audio outputs.  
Each channel is equipped with an XLR jack which al-  
lows you to enjoy professional quality sound by mini-  
mizing the effects of RF and other interference.  
LF - Left front  
LS - Left surround  
C - Center  
RS - Right surround  
RF - Right front  
Connecting a 7.1-Channel Amplifier (XLR)  
2
If you have a powered subwoofer, see page 25 to  
complete the 5.1-channel experience.  
1
Using seven XLR cables, connect the balanced  
audio outputs from the GTP-870HD to the cor-  
responding XLR inputs on your amplifier.  
LF - Left front  
LS - Left surround  
LB - Left back  
C - Center  
RB - Right back  
RS - Right surround  
RF - Right front  
2
If you have a powered subwoofer, see page 25 to  
complete the 7.1-channel experience.  
Right  
Right Right  
Left  
Left  
Left  
Front Surround Back  
Center Back Surround Front  
Notes:  
For subwoofer connections,  
see page 25.  
For 7.1 preamp connections,  
see page 25.  
To configure the number, size,  
crossover frequency, delay,  
and balance settings for your  
speakers, see pages 37-39.  
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Connecting a Powered Subwoofer  
Amplifier/Subwoofer Connections (RCA)  
The .1” in 5.1 and 7.1 stands for the all-important  
Subwoofer, also known as an L.F.E., or low-frequency  
effects channel. No home theater would be com-  
plete without a subwoofer rumbling your listening  
area with thunderous bass.  
Follow these steps to connect the GTP-870HD to a  
power amplifier using the 7.1 preamp (unbalanced)  
outputs. You can also follow these steps to connect a  
powered subwoofer.  
1
Using an RCA cable, connect the S output from  
the GTP-870HD to the corresponding RCA input  
on your powered Subwoofer.  
Connecting a 7.1-Channel Amplifier (RCA)  
1
Using seven RCA cables, connect the 7.1 channel  
preamp outputs (RF, RS, RB, C, LF, LS, and LB)  
from the GTP-870HD to the corresponding RCA  
inputs on your amplifier.  
2
Connect the S output to a powered subwoofer.  
Connecting a 5.1-Channel Amplifier (RCA)  
1
Using five RCA cables, connect the 7.1 channel  
preamp outputs (RF, RS, C, LF, and LS) from the  
GTP-870HD to the corresponding RCA inputs on  
your amplifier.  
2
Connect the S output to a powered subwoofer.  
7.1 Preamp  
Outputs  
Subwoofer  
Output  
Notes:  
 
To configure your speakers,  
see pages 37-39.  
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Video Recorder Connections  
It’s not always about playback. Sometimes you want  
to record, and these days that means DVD recorders,  
HDD recorders, and PVRs (such as TiVo®), in addition  
to the old standby, the VCR.  
Once you’ve connected a dual playback/record de-  
vice to the Video 3 or Video 4 inputs (see page 15),  
follow these steps to connect the GTP-870HD back  
out to the device for record capability.  
Tip  
An alternate use of the  
S-Video Out is to provide  
video to 'legacy' video  
display devices. For example,  
you could use the S-Video  
out to provide input to a  
video processor connected  
to an older projector that  
requires an RGB input.  
Connecting a Video Recorder  
1
Connect video.  
Using a video cable, connect the Video Tape  
output on the GTP-870HD to the video input  
on your video recorder.  
For higher quality video, use an S-video ca-  
ble to connect to your video recorder.  
2
Connect audio.  
Using RCA cables, connect the Video 3 or  
Video 4 audio outputs on the GTP-870HD to  
the audio inputs on your video recorder.  
Choose Video 3 or Video 4 depending on  
which input your recorder is connected to.  
If you have two video recording devices con-  
nected, you can use the Aux output for audio  
recording.  
Audio  
Output Output  
(Video 3) (Video 4)  
Audio  
Video Tape  
Output  
Notes:  
 
For tips on recording, see page  
59.  
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Tape Out/Aux Connections  
The GTP-870HD includes two additional sets of RCA  
outputs for connection to a tape recorder and/or au-  
dio system. Follow these steps to connect your audio  
output device to the GTP-870HD.  
Connecting a Tape Recorder  
1
Connect the tape recorder.  
Using RCA cables, connect the Tape outputs  
on the GTP-870HD to the audio inputs on  
your tape recorder.  
2
Monitor the tape recording.  
Press the Tape button on the remote control  
or front panel to monitor the tape output.  
Connecting an Auxiliary Audio Device  
Connect the audio device  
1
Using RCA cables, connect the Aux outputs  
on the GTP-870HD to the line inputs on your  
audio device.  
The audio signal from the Aux output will  
switch according to the Video 1~4 or CD in-  
put.  
Tape  
Aux  
Output  
Output  
Notes:  
To turn the Tape Monitor  
on/off, press the Tape button  
on the remote control or front  
panel.  
For Tape operations, see page  
56.  
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Connecting the 12V DC Trigger  
Room 2 Connections  
If your external device is equipped with a 12V DC  
trigger, you can have the device power on automati-  
cally when you select Room 2 from the GTP-870HD.  
Want to listen to a CD in the den while the kids are  
watching a movie in the family room? Follow these  
steps to connect the GTP-870HD to a sound system  
in a second room.  
1
Connect the 12V DC trigger.  
Using a cable with two mono mini-plugs,  
connect the 12V DC trigger jack from the  
GTP-870HD to the 12V DC trigger jack on  
your external component.  
Variable or Fixed Output?  
Before you connect your Room 2 sound system, you  
need to determine whether to use the Variable or  
Fixed audio outputs:  
Now when you press the Room 2 button, the  
sound system in Room 2 will power on auto-  
matically.  
If your Room 2 sound system does NOT have its  
own volume control (e.g., an amplifier), use the  
Variable outputs and adjust the Room 2 volume  
from the GTP-870HD.  
Connecting a Remote Sensor  
If you want to be able to control the GTP-870HD  
while in the second room, simply connect an IR sen-  
sor to the Zone 2 remote input.  
If your Room 2 sound system DOES have its own  
volume control (e.g., a stereo receiver or other  
audio component), use the Fixed outputs and ad-  
just the volume from the Room 2 device.  
1
Connect the Zone 2 remote sensor.  
Using a remote sensor with a cable long  
enough to reach between rooms, connect  
the cable’s mini-plug into the Zone 2 IR input  
jack on the GTP-870HD.  
Connecting the Zone 2 Outputs  
1
Connect the Room 2 amplifier/audio compo-  
nent.  
2
Attach the remote sensor in Room 2.  
Following the manufacturer’s instructions,  
attach the remote sensor in a suitable place  
in Room 2.  
Using RCA cables, connect the Var or Fixed  
outputs on the GTP-870HD to the line or aux  
inputs on your Room 2 amplifier/audio com-  
ponent.  
If you are using the Fixed outputs, make sure  
the volume level on your external component  
is turned all the way down before switching  
to Room 2 to prevent damage to your speak-  
ers.  
Zone 2  
Fixed  
Output  
Zone 2  
Variable  
Output  
Zone 2  
12V DC  
Trigger  
Zone 2  
IR Input  
Notes:  
 
To switch to Room 2 mode,  
press the Rm 2 button on the  
remote control, or the Room  
2 On/Off button on the front  
panel.  
For Room 2 configuration set-  
tings, see pages 41-42.  
For Room 2 operations, see  
page 62.  
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Screen/Power Trigger Connections  
Control Connections  
1
Using a cable with dual mono mini-plugs, con-  
nect the Main 12V DC trigger jack to the 12V DC  
trigger on your compatible device.  
Sensors, triggers, and PCs, oh my. If you’ve gotten  
this far, you’re really fine-tuning your home theater.  
This section is all about control:  
Common compatible devices include ampli-  
fiers, motorized screens, and high-end au-  
dio/video components.  
Remote IR sensors - These allow you to control  
your GTP-870HD even if it is behind closed doors  
or otherwise concealed from view.  
2
3
Make sure the Main Trigger is enabled in the  
menu system; see page 33.  
Triggers - These allow you to automatically  
power on connected devices, such as motorized  
movie screens and connected amplifiers, when  
the GTP-870HD is powered on or a particular in-  
put is selected.  
The default setting is on for all inputs.  
Confirm the trigger is working.  
Power on the GTP-870HD or select the input  
for which the main trigger is enabled.  
The connected device should power on.  
RS232 Port - This allows you to control the GTP-  
870HD with a home automation system or to up-  
grade the unit’s firmware through the RS232 port  
on your PC.  
PC Connections  
1
Contact Adcom for information on the avail-  
ability of firmware updates and instructions for  
implementing them.  
Remote IR Sensor Connections  
2
When instructed, use an RS232 cable to connect  
the RS232 port on the GTP-870HD to the RS232  
port on your PC.  
1
Obtain a remote IR sensor.  
Choose a remote IR sensor from an electron-  
ics distributor that suits your particular in-  
stallation needs.  
Media Center & Home Automation Control Systems  
Install the remote IR sensor according to the  
manufacturer’s instructions.  
1
The RS232 port can also be used to control the  
GTP-870HD from a media control center, home  
automation system, or PC.  
3
4
Connect the remote IR sensor’s mono mini-plug  
to the Main IR input on the GTP-870HD.  
Confirm the remote IR sensor is working.  
See Discrete Remote Control Commands on  
pages 53-54 for more information.  
Conceal the GTP-870HD front panel and at-  
tempt to control the unit by pointing the re-  
mote at the remote IR sensor.  
Main IR  
Input  
RS232  
Control  
Main 12V  
DC Trigger  
Notes:  
To configure the Main 12V DC  
trigger, see page 33.  
For a list of Discrete Remote  
Control Commands, see pages  
53-54.  
The 12V trigger is simply a  
“trigger” and not a relay driv-  
er. Some motorized screens  
will require an outboard de-  
vice to be used in association  
with the 12V trigger. See the  
screen manufacturer’s instruc-  
tions or ask your dealer or  
distributor.  
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Power Connections  
When all connections are complete, you’re ready to  
check the voltage switch, plug in the power cable,  
and power on the GTP-870HD.  
Checking the Voltage Switch  
1
To prevent damage to your equipment, make sure  
the rear panel voltage switch is set correctly for  
your geographic region.  
Select 120V for U.S. and Canada.  
Select 230V for EU and Australia operation.  
For other regions, check with your local au-  
thorities.  
Connecting the Power Cable  
1
Connect the supplied power cable to the AC input  
and plug it into an electrical outlet.  
Turning on the Power  
1
Turn the main power switch on.  
Switch position (1) is on and (0) is off.  
This switch effectively connects or discon-  
nects the GTP-870HD from the AC power  
source.  
Voltage  
Switch  
Main Power  
Switch  
AC Input  
Notes:  
For system and remote setup,  
see Chapter 3.  
For operations, see Chapter 4.  
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Chapter 3 - Setup  
Setup Overview  
The following is an overview of the GTP-870HD Setup  
menu, including:  
Setup navigation .................................. 32  
Input configuration ............................... 33  
Speaker configuration ............................ 37  
Delay configuration ............................... 38  
Channel balance................................... 39  
ProLogic II/Neo:6 configuration................. 40  
Room 2 configuration............................. 41  
System configuration ............................. 43  
Analog input levels................................ 45  
For detailed remote control setup, see pages 46-54.  
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Setup Navigation  
Use the following remote control buttons to navigate  
the Setup menu.  
Main - Press the Main button to select the GTP-  
870HD. You must first select the GTP-870HD be-  
fore you can access the Setup menu.  
Setup - Press the Setup button to display and  
exit the Setup menu.  
Arrows - Press the /buttons to move the se-  
lection arrow up or down the list of menu items.  
Press the /buttons to step through all avail-  
able options for the selected menu item.  
Select - Press the Select button to confirm your  
menu selections.  
Main  
Setup  
Select  
Arrows  
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Input Configuration  
What options are available when you select an input  
source? The following is an overview of the configu-  
ration settings available for each input.  
To access the Input Configuration menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select INPUT CONFIG,  
then press the Select button.  
4
Use the /buttons to choose from the follow-  
ing menu items:  
SOURCE  
Selects the input source you are configuring. Use the  
/buttons to select:  
If you select Bypass, the Setup menu and on-  
screen displays will not be shown. Once Bypass  
has been selected, you will need to use the Set-  
up menu on the front panel display in order to  
change this setting.  
Video 1, Video 2, Video 3, Video 4, CD, Tuner AM,  
or Tuner FM  
INPUT  
Selects the audio input that you wish to assign to  
the selected input source. Use the /buttons to  
select:  
HD SCALER  
Displays the HD (High Definition) Scaler menu.  
Coaxial 1, Coaxial 2, Coaxial 3, Optical 1, Optical  
2, Optical 3, or Analog  
See page 34.  
VOLUME/TONE  
Displays the Volume/Tone Configuration menu.  
EXT 7.1  
Enables or disables the External 7.1 inputs for the se-  
lected input source. Use the /buttons to select:  
See page 36.  
On or Off  
LIP SYNC DLY  
Sets the default lip sync delay for the selected input.  
Use this feature if video processing is causing the  
video to lag behind the audio. Use /to set the  
lip sync delay:  
MAIN TRIG  
Enables or disables the Main 12V DC Trigger for the  
selected input source. If the input source has a 12V  
DC Trigger input, you can use this setting to auto-  
matically power the source device on whenever this  
input is selected. Use the /buttons to select:  
The available range is 0 to 169 mS.  
The default setting is 0 mS.  
On or Off  
Notes:  
For ‘on the fly’ adjustments to the lip sync delay,  
MODE  
press the Sync button on the remote control, then  
use /to override the default delay setting.  
While the Lip Sync Delay menu is displayed, press  
the Sync button again to toggle the delay on and off.  
This allows you to make quick comparisons with and  
without delay.  
Selects the default Surround mode for the selected  
input. Use the /buttons to select:  
7.1 m2, Dolby Digital, Dolby Digital EX, DTS, DTS-  
ES, Neo:6 C, Neo:6 M, Dolby Pro Logic, Stereo,  
Pro Logic II-C, Pro Logic II-M, Pro Logic II-P, Pro  
Logic IIX-C, Pro Logic IIX-M, Pro Logic IIX-P, Hall,  
or 5 Stereo  
For a detailed description of each Surround  
mode, see page 57.  
VID I/O  
Selects the video source you wish to assign to the  
selected input. Use the /buttons to select:  
Auto, Composite, S-video, Component, or By-  
pass  
If you select Auto, the GTP-870HD will automati-  
cally detect which video input jacks are in use.  
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HD Scaler Configuration  
Now it’s time to enable the HD Scaler and configure  
it for your display and source devices.  
To access the HD Scaler menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select INPUT CONFIG,  
then press the Select button.  
4
5
Use the /buttons to select HD SCALER, then  
press the Select button.  
Use the /buttons to choose from the follow-  
ing menu items:  
HDMI SWITCH  
Enables the HD Scaler or simply passes through the  
HDMI signal. Use the /buttons to select:  
Squeeze - Compresses a widescreen image to a  
4:3 display.  
NLS (Non-linear Stretch) - Stretches a 4:3 image  
to 16:9, but preserves the correct aspect ratio in  
the center of the picture.  
Scaled - Enables the HD Scaler for the selected  
input.  
Video 1, Video 2 - Assigns the Video 1 or Video 2  
HDMI input to the selected input.  
None - Disables HDMI for the selected input.  
POSITION ADJUST  
Displays the Position Adjust menu where you can  
fine tune the vertical and horizontal position of the  
scaled image. Use the /buttons to select:  
IN RES  
Specifies the input resolution for the HD scaler. Use  
the /buttons to select:  
Test Patrn - Displays a test pattern to make it  
easier to discern the edges of the screen.  
Vert Position - Set from -31 to +31.  
480i NTSC or 576i PAL.  
OUT RES  
Horz Position - Set from -63 to +63.  
Sets the output resolution of the HD Scaler to match  
your display device. Check the specifications of your  
display, then use the /buttons to choose from  
the following:  
CABLE EQ  
Enables cable equalization to compensate for high-  
frequency signal loss/dispersion when transmitting  
high-res video over long distances. Use the /but-  
tons to select:  
Select 480i or 576i for standard NTSC or PAL inter-  
laced displays.  
Select 480p, 576p, 720p (50/60Hz), 1080i, 1080p  
(50/60Hz) or VGA for high-definition and/or pro-  
gressive scan displays.  
Short or Long  
Select Short if your HDMI cable is < 5 meters.  
Select Long if your HDMI cable is > 5 meters.  
Select Auto to automatically detect the output  
resolution of your display device.  
HDMI AUDIO  
Sets the format of the HDMI audio signal. Leave this  
setting off UNLESS you are using your display’s inte-  
grated audio processing, amplification and speakers.  
If this setting is on, you will NOT be using the GTP-  
870HD audio processor and amplifier. Use the /  
buttons to select:  
COLOR SPC  
Specifies the 24-bit color space output to your dis-  
play device. Check the specifications of your display,  
then use the /buttons to select:  
RGB444 (default) or YCbCr444  
PCM 2 CH, PCM/Bit, or Off  
Select PCM 2CH to send a 2-channel digital audio  
signal to your display device.  
Select PCM/Bit to send a digital bitstream to  
your display device.  
Select Off to disable HDMI audio.  
FORMAT  
Sets the default picture format for the selected in-  
put. Use the /buttons to choose:  
Auto - Automatically selects the best picture  
format for the current output resolution.  
Full - Stretches a standard 4:3 image to fill a wi-  
descreen (16:9) display.  
Zoom - Zooms the on-screen image proportion-  
ally, preserving the original aspect ratio but  
cropping the picture.  
PICTURE CONTROLS  
See page 35.  
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Picture Controls  
The HD Scaler includes basic and advanced controls  
to help you achieve optimal picture quality for each  
input source.  
To access the Picture Controls menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select INPUT CONFIG,  
then press the Select button.  
4
5
6
Use the /buttons to select HD SCALER, then  
press the Select button.  
Use the /buttons to select PICTURE CON-  
TROLS, then press the Select button.  
Use the /buttons to choose from the follow-  
ing menu items:  
BASIC CONTROLS  
Provides basic tools to adjust the picture for each  
input source. Use the /buttons to choose:  
Contrast - Adjusts the difference in brightness  
between the lightest and darkest areas of the  
picture. Choose from 0-20 (default = 10).  
Brightness - Adjusts the overall brightness of the  
picture. Choose from 0-100 (default = 50).  
Color - Adjusts the color intensity and satura-  
tion of the picture. Choose from 0-128 (default =  
64).  
• 3D A-FTD Multiple Frame Adaptive Filter with  
Flesh Tone Detection  
• 3D A  
Multiple Frame Adaptive Filter  
• 3D F-FTD Multiple Frame Fixed Filter with Flesh  
Tone Detection  
Tint - Adjusts red and green levels to accurately  
reproduce skin tones. Choose from 0-100 (de-  
fault = 50).  
ACE (Adaptive Color Enhancement) - Enhances  
an image by improving its contrast. Choose from  
High, Mid, Low, or Off (default).  
Edge - Adjusts edge enhancement, ranging from  
soft to crisp picture detail. Choose from High,  
Mid, Low, or Off (default).  
• 3D FIXED Multiple Frame Fixed Filter  
• 2D C-FTD Single Frame Cascade Filter with  
Flesh Tone Detection  
• 2D C  
• OFF  
Single Frame Cascade Filter  
No Noise Reduction  
• 3D MA V1 Multiple Frame/Motion Adaptive/  
Vector Interpolation  
ADVANCED CONTROLS  
Provides advanced tools to fine-tune the picture for  
each input source. Use the /buttons to choose:  
• 3D MA V2 Multiple Frame/Motion Adaptive/No  
Vector Interpolation  
Noise Filter - Provides a variety of specialized fil-  
ters to reduce picture noise (see table at right).  
Deinterlace Mode - Digitally enhances the pic-  
ture quality of interlaced source material (see  
table at right).  
• 3D MA LN Multiple Frame/Motion Adaptive/  
Linear  
• 3D  
Multiple Frame/No Vector Interpola-  
tion  
• 2D VX1  
• 2D VX2  
Single Frame/Vector Interpolation  
Single Frame/No Vector Interpolation  
Film Mode - Automatically detects if source ma-  
terial was originally shot on film and transferred  
to video, e.g. DVDs, VHS tapes, and many TV  
programs. Choose from Auto or Off.  
• 2D LN  
• OFF  
Single Frame/Linear  
No Deinterlacing  
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Volume/Tone Configuration  
Want to adjust the bass, treble, and relative volume  
for each input source? Look no further than the Vol-  
ume/Tone Configuration menu.  
To access the Volume/Tone Configuration menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select INPUT CONFIG,  
then press the Select button.  
4
5
Use the /buttons to select VOLUME/TONE,  
then press the Select button.  
Use the /buttons to choose from the follow-  
ing menu items:  
VOLUME  
Sets the relative volume of the selected input. Use  
this feature to balance volume levels as you switch  
between inputs. Use the /buttons to set the vol-  
ume level:  
The available range is -80 dB to +18 dB.  
The default setting is -40 dB.  
TONE CONTROL  
Enables manual bass and treble control. Use the /  
buttons to choose:  
On or Off.  
Select On to use your custom bass and treble  
settings for the selected input.  
Select Off to use the default bass and treble set-  
tings for the selected input.  
BASS LEVEL  
Provides manual control of the bass level for the se-  
lected input. Use the /buttons as follows:  
The available range is -12 dB to +12 dB.  
The default setting is +0 dB.  
TREBLE LEVEL  
Provides manual control of the treble level for the  
selected input. Use the /buttons as follows:  
The available range is -12 dB to +12 dB.  
The default setting is +0 dB.  
Notes:  
To make Bass/Treble adjustments ‘on the fly,’  
first press the Bypass button on the remote con-  
trol to toggle Tone Control on. Then use the Bass  
and Treble buttons to bring up the tone adjust-  
ment on-screen display. Finally, use the /  
buttons to set the desired level.  
Tone controls are not available in the Dolby  
Digital EX, DTS-ES, NEO6, and Pro Logic IIx Sur-  
round modes.  
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Speaker Configuration  
What speaker types and sizes are you using? The fol-  
lowing is an overview of the Speaker Configuration  
menu.  
To access the Speaker Configuration menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select SPEAKER CONFIG,  
then press the Select button.  
4
Use the /buttons to choose from the follow-  
ing menu items:  
FRONT  
Selects the relative size of your front speakers. Use  
the /buttons to select:  
SUBWOOFER  
Small or Large  
Select Small if you DO have a subwoofer.  
Select Large if you do NOT have a subwoofer.  
Indicates the presence of a subwoofer. Use the /  
buttons to select:  
Yes or No  
Select Yes if you DO have a Subwoofer.  
Select No if you do NOT have a Subwoofer  
CENTER  
Selects the relative size of your center speaker (if  
applicable). Use the /buttons to select:  
FRNT XOVER  
Small, Large, or None  
Sets the front speaker crossover frequency; i.e., the  
frequency (in Hz) at which audio signals are routed  
from your front speakers to the subwoofer. Use the  
/buttons to select:  
Select Small if you DO have a subwoofer.  
Select Large if you do NOT have a subwoofer.  
Select None if you do not have a center speak-  
er.  
40, 60, 80, 100, 120, 150  
If you set your front speakers to Large, then this  
setting will be fixed at None.  
SURROUND  
Selects the relative size of your surround speakers (if  
applicable). Use the /buttons to select:  
CNTER XOVER  
Small, Large, or None  
Sets the center speaker crossover frequency; i.e., the  
frequency (in Hz) at which audio signals are routed  
from your center speaker to the subwoofer. Use the  
/buttons to select:  
Select Small if you DO have a subwoofer.  
Select Large if you do NOT have a subwoofer.  
Select None if you do not have a surround speak-  
er.  
40, 60, 80, 100, 120, 150  
If you set your center speakers to Large, then  
this setting will be fixed at None.  
SURR BACK  
Indicates the presence and configuration of your sur-  
round back speakers. Use the /buttons to se-  
lect:  
SURR XOVER  
Sets the surround speaker crossover frequency; i.e.,  
the frequency (in Hz) at which audio signals are rout-  
ed from your surround speakers to the subwoofer.  
Use the /buttons to select:  
BS-LB, LB/RB, or None  
Select BS-LB if you have a SINGLE surround back  
speaker (BS) connected to the left back (LB) out-  
put.  
40, 60, 80, 100, 120, 150  
If you set your surround speakers to Large, then  
this setting will be fixed at None.  
Select LB/RB if you have TWO surround back  
speakers connected to the left back (LB) and  
right back (RB) outputs, respectively.  
Select None if you do NOT have surround back  
speakers.  
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Delay Configuration  
How far is each speaker from your primary listening  
area? The GTP-870HD uses this information to cal-  
culate differences in distance and adds milliseconds  
of delay if necessary to ensure that all audio signals  
reach your ears simultaneously from all speakers.  
The following is an overview of the Delay Configura-  
tion menu.  
To access the Delay Configuration menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select DELAY CONFIG,  
then press the Select button.  
4
Use the /buttons to choose from the follow-  
ing menu items:  
SURR BACK  
Sets the distance from your surround speakers to  
your primary listening area in feet or meters (see  
Delay Unit below). Measure this distance, then use  
the /buttons to select:  
FRONT  
Sets the distance from your front speakers to your  
primary listening area in feet or meters (see Delay  
Unit below). Measure this distance, then use the  
/buttons to select:  
0-20 feet (0-6.1 meters)  
The surround back speakers are often closer to  
the primary listening area than the front speak-  
ers. If so, the GTP-870HD calculates the differ-  
ence in distance and adds delay accordingly.  
0-20 feet (0-6.1 meters)  
The front distance is the benchmark setting for  
all other speakers, so measure this distance care-  
fully.  
SUBWOOFER  
CENTER  
Sets the distance from your subwoofer to your pri-  
mary listening area in feet or meters (see Delay Unit  
below). Measure this distance, then use the /  
buttons to select:  
Sets the distance from your center speaker to your  
primary listening area in feet or meters (see Delay  
Unit below). Measure this distance, then use the  
/buttons to select:  
0-20 feet (0-6.1 meters)  
0-20 feet (0-6.1 meters)  
The subwoofer is often closer to the primary lis-  
tening area than the front speakers. If so, the  
GTP-870HD calculates the difference in distance  
and adds delay accordingly.  
The center speaker is often closer to the primary  
listening area than the front speakers. If so, the  
GTP-870HD calculates the difference in distance  
and adds delay accordingly.  
DELAY UNIT  
SURROUND  
Sets the unit of measurement for channel delays.  
Use the /buttons to select:  
Sets the distance from your surround speakers to  
your primary listening area in feet or meters (see  
Delay Unit below). Measure this distance, then use  
the /buttons to select:  
Feet or Meters.  
0-20 feet (0-6.1 meters)  
The surround speakers are often closer to the  
primary listening area than the front speakers.  
If so, the GTP-870HD calculates the difference in  
distance and adds delay accordingly.  
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Channel Balance  
How can you achieve optimal balance in volume lev-  
els from all speakers? The GTP-870HD supplies indi-  
vidual sliders and a “pink noise” test tone to aid you  
in balancing your speaker levels. For best results, it  
is recommended that you use a Sound Pressure Level  
(SPL) meter to precisely measure the volume levels  
from each speaker. However, your ear aided by ex-  
perimentation is ultimately the best judge. The fol-  
lowing is an overview of the Channel Balance menu.  
To access the Channel Balance menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select CHANNEL BAL-  
ANCE, then press the Select button.  
Use the /buttons to choose from the follow-  
ing menu items:  
L SURROUND / R SURROUND  
Adjusts the relative volume of the left/right surround  
speakers. Use the /buttons to select:  
4
-10 to +10 dB  
If you do not have surround speakers (as set on  
page 37), the choices will be fixed to N/A.  
TEST TONE  
Generates a “pink noise” test tone that you can move  
manually from speaker to speaker. This neutral tone  
provides an effective gauge to measure volume lev-  
els that is more objective than a movie sound track  
or other variable signal. Use the /buttons to se-  
lect:  
L SURR BACK / R SURR BACK  
Adjusts the relative volume of the left/right surround  
back speakers. Use the /buttons to select:  
-10 to +10 dB  
If you do not have surround back speakers (as set  
on page 37), the choices will be fixed to N/A.  
On or Off  
If you select On, the test tone does not begin  
until you first select a speaker (see below).  
If you select Off, the currently selected audio  
source will be heard instead of the test tone.  
SUBWOOFER  
Adjusts the relative volume of the subwoofer. Use  
the /buttons to select:  
L FRONT / R FRONT  
Adjusts the relative volume of the left/right front  
speakers. Use the /buttons to select:  
-10 to +10 dB  
If you do not have a subwoofer (as set on page  
37), the choices will be fixed to N/A.  
-10 to +10 dB  
CENTER  
Adjusts the relative volume of the center speaker.  
Use the /buttons to select:  
-10 to +10 dB  
If you do not have a center speaker (as set on  
page 37), the choice will be fixed to N/A.  
Notes:  
You can also use the Channel Trim and Test Tone  
buttons on the remote control to adjust the chan-  
nel balance.  
Press the Channel Trim button to set the volume  
levels for each individual speaker.  
Press the Test Tone button to hear a test tone in  
each speaker.  
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Pro Logic IIx/Neo:6 Configuration  
The GTP-870HD makes the most of your incoming  
stereo signals. With the built-in Dolby Pro Logic IIx  
and DTS Neo:6 decoders, not only can you slice, dice,  
and expertly distribute a stereo signal to seven or  
more speakers, you can even fine-tune the imaging  
and depth of the sound field specifically for music  
sources.  
To access the Pro Logic IIx/Neo:6 configuration  
menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select PLII/NEO:6 CON-  
FIG, then press the Select button.  
Use the /buttons to choose from the follow-  
ing menu items:  
4
PLII MUSIC CONFIG (CENTER WIDTH)  
While listening in Dolby Pro Logic IIx Music mode, ad-  
justs the width of the center channel. Use the /  
buttons to select:  
+0 (narrowest) to +7 (widest)  
The default is 3.  
PLII MUSIC CONFIG (DIMENSION)  
While listening in Dolby Pro Logic IIx Music mode,  
adjusts the dimensions of the sound field. Use the  
/buttons to select:  
-3 (most distant) to +3 (farthest forward)  
The default is 0.  
NEO:6 MUSIC CONFIG (CENTER IMAGE)  
While listening in Neo:6 Music mode, adjusts the  
prominence of the center channel to create a wider  
stereo effect with vocals. Use the /buttons to  
select:  
+0 (no effect) to +5 (most prominence given to  
center channel)  
The default is 3.  
Note:  
The ProLogic IIx configuration settings apply to  
both ProLogic II and ProLogic IIx surround modes;  
see page 57.  
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Room 2 Basic Configuration  
What input source do you want to play in Room 2?  
Once that is specified, you have the option of fine  
tuning audio levels depending on the requirements  
of your Room 2 audio system.  
To access the Room 2 Configuration menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select ROOM 2 CONFIG,  
then press the Select button.  
Note: You can also access the Room 2 Con-  
figuration menu by pressing the Room Two  
Setup button on the GTP-870HD front pan-  
el.  
4
Use the /buttons to choose from the follow-  
ing menu items:  
ROOM 2  
Enables Room 2 playback. Use the /buttons to  
select:  
On or Off  
MUTE  
Mutes Room 2 audio. Use the /buttons to se-  
lect:  
On or Off  
If the Room 2 setting is Off, you will not be able  
to set Mute to On.  
INPUT  
Sets the audio input for Room 2. Use the /but-  
tons to select:  
Video 2, Video 3, Video 4, CD, Tuner AM, or Tun-  
er FM  
When Room 2 is enabled, the selected input  
source will be sent from the Zone 2 Outputs on  
the GTP-870HD rear panel to the audio inputs of  
your Room 2 receiver.  
VOLUME  
Adjusts the volume level of the Room 2 audio signal.  
Use the /buttons to set the volume level:  
The available range is -65 dB to 0 dB.  
The default setting is -40 dB.  
ADVANCED SETTINGS  
See page 42.  
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Room 2 Advanced Configuration  
The Room 2 Advanced Configuration menu contains  
powerful tools to customize and optimize the output  
of the GTP-870HD to your secondary audio system.  
To access the Room 2 Advanced Config menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select ROOM 2 CONFIG,  
then press the Select button.  
4
5
Use the /buttons to select ADVANCED SET-  
TINGS, then press the Select button.  
Use the /buttons to choose from the follow-  
ing menu items:  
SURROUND  
Turns a “pseudo” surround effects mode on/off. Use  
the /buttons to select:  
On or Off  
VOCAL CUT  
Attenuates the normal “vocal” audio frequency  
range. Use the /buttons to select:  
On or Off  
BALANCE L / BALANCE R  
Adjusts the left and right channel balance from the  
Zone 2 outputs. Use the /buttons to select:  
-8 to +8 dB  
TONE  
Turns tone control on/off. Selecting On enables the  
Bass & Treble effects (see below). Use the /but-  
tons to select:  
INPUT GAIN CONFIG  
Launches the Room 2 Input Gain menu, where you  
can set the relative gain for each possible Room 2  
input source.  
On or Off  
BASS / TREBLE  
Use the /buttons to select the desired input  
(Video 2, Video 3, Video 4, CD, AM Tuner, FM  
Tuner).  
Adjusts the bass and treble of the audio signal from  
the Zone 2 outputs. Bass and Treble (Tone control)  
adjustments are only effective when “TONE” is On  
(see above). Use the /buttons to select:  
Then use the /buttons to set the input gain  
from -8 to +6 dB.  
-8 to +8 dB  
INITIAL POWER  
Sets Room 2 to initialize in either On or Off mode  
whenever the main rear panel power switch is  
turned on (1). Use the /buttons to select:  
On or Off  
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System Configuration  
The System Configuration menu provides initial pow-  
er, on-screen display time outs, and system tools to  
put the finishing touches on your system setup.  
One critical tool is the “Setup Lock,which allows  
you to lock down all the settings you’ve made to the  
GTP-870HD to prevent accidental changes or tam-  
pering with the unit.  
To access the System Configuration menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select SYSTEM CONFIG,  
then press the Select button.  
4
Use the /buttons to choose from the follow-  
ing menu items:  
VOLUME ACCEL  
Sets the rate of acceleration (the speed at which the  
volume goes up or down) when you press and hold the  
Volume +/- buttons on the remote control. Use the  
/buttons to select:  
INITIAL POWER  
Sets the GTP-870HD to initialize in either On or Stand-  
by mode whenever the main rear panel power switch  
is turned on (1). Use the /buttons to select:  
0.5 dB, 1 dB or 2 dB  
The default setting is 1 dB.  
On or Off (Standby mode)  
VOLUME LIMIT  
OSD TIME OUT  
Sets the maximum volume level for the system. Once  
set, the master volume cannot exceed this limit un-  
less you change this setting. Use the /buttons  
to select:  
Sets on-screen displays to time out after a specified  
length of time. Use the /buttons to set the time  
out duration from:  
0-30 seconds  
-10 dB to +18 dB  
The default setting is +18 dB.  
SETUP LOCK  
Once you have set up your GTP-870HD and are  
pleased with its operations, you may want to “lock  
down” your settings to prevent accidental changes.  
Use the /buttons to select:  
LABEL SOURCE  
Displays the Label Source menu.  
See page 44.  
On or Off  
NON CE861 DVI  
If you select On and exit the Setup menu, the  
Setup menu will no longer be accessible, even if  
you press the Setup button.  
To override the Setup lock: Press and hold both  
the Video 2 button and the Sur Mode button on  
the front panel at the same time.  
Turn this setting on ONLY if you have a ‘legacy’ dis-  
play device that does not conform to the Consumer  
Electronics Association specification EIA/CEA 861.  
Use the /buttons to select:  
On or Off.  
VID BLK LVL  
The Video Black Level feature adjusts the reference  
level of black in the video signal. Use the /but-  
tons to select:  
7.5 IRE - Standard NTSC black level. Yields con-  
sistent contrast through all sources.  
0 IRE - Enhanced black level. For increased con-  
trast during DVD playback.  
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Input Labeling  
Tired of trying to remember which source device  
goes with which Video input? The Label Source menu  
allows you to label your inputs with names that  
uniquely identify your source devices.  
To access the Label Source menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select SYSTEM CONFIG,  
then press the Select button.  
4
5
Use the /buttons to select LABEL SOURCE,  
then press the Select button.  
Use the /buttons to choose from the follow-  
ing menu items:  
INPUT NAME  
Displays the current name of the selected source de-  
vice.  
No settings are necessary.  
SOURCE  
Selects the input source you want to label. Use the  
/buttons to select:  
Video 1, Video 2, Video 3, Video 4, CD, Tuner AM,  
or Tuner FM  
EDIT NAME  
Displays the Edit Name menu.  
Use the ///buttons to select a character,  
then press the Select button to add the charac-  
ter to the input name.  
The left and right arrow symbols are used for  
navigation within the input name.  
The “space” character is located between the  
left and right arrow symbols.  
Names can be up to 8 characters long.  
ERASE NAME  
Erases the input name and opens the Edit Name  
menu (see above).  
If you want the input name to be blank (i.e., no  
name will be displayed for the selected input),  
select Erase Name, then select Return to Setup.  
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Analog Input Level  
The GTP-870HD allows you to adjust the voltage ref-  
erence levels independently for each of the unit’s  
seven analog audio inputs. Check the technical spec-  
ifications of your source components to determine  
the optimum reference level setting.  
To access the Analog Input Level menu:  
1
2
3
Press the Main button on the remote control.  
Press the Setup button.  
Use the /buttons to select ANALOG INPUT  
LEVEL, then press the Select button.  
Use the /buttons to choose from the follow-  
ing menu items:  
4
CD  
Adjusts the analog input level for the CD audio input.  
Use the /buttons to select:  
2 V REF (default)  
4 V HIGH  
1 V LOW  
VIDEO 1~4  
Adjusts the analog input level for the Video 1~4 audio  
inputs. Use the /buttons to select:  
2 V REF (default)  
4 V HIGH  
1 V LOW  
TAPE  
Adjusts the analog input level for the Tape input. Use  
the /buttons to select:  
2 V REF (default)  
4 V HIGH  
1 V LOW  
TUNER  
Adjusts the analog input level for the Tuner input.  
Use the /buttons to select:  
2 V REF (default)  
4 V HIGH  
1 V LOW  
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Remote Control Setup  
The GTP-870HD is a learning remote control that is  
capable of storing and executing commands for all  
remote controls in your home theater system. In this  
way, you can eliminate the confusion of using mul-  
tiple remotes.  
This section is divided into two main parts:  
Using Preprogrammed Commands  
The first section is an overview ofthe preprogrammed  
commands for each source:  
Pressing a source button on the remote con-  
trol not only selects the input associated  
with that source...  
Main commands ................................... 39  
Video 1~3 commands ............................. 39  
Video 4 commands (GDV-850)................... 40  
CD commands (GCD-750)......................... 40  
Tuner commands .................................. 41  
Rm 2 commands................................... 41  
Note: Main commands are not programmable, except  
for the four user macros (M1, M2, M3, and M4).  
Programming Remote Commands  
The second section includes instructions for pro-  
gramming the remote for each source:  
Programming commands ......................... 39  
Deleting commands............................... 40  
Deleting all commands for a  
single component ................................. 41  
Deleting all commands for  
all components .................................... 41  
Programming macro buttons .................... 41  
Deleting macro buttons .......................... 42  
Discrete remote control commands ............ 42  
...but it also remaps the remote control  
buttons for that source.  
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Using Preprogrammed Commands  
The following commands are preprogrammed for the Main and Video 1-3 inputs:  
Main Commands  
Video 1-3 Commands  
Button  
main  
vid 1  
vid 2  
vid 3  
vid 4  
CD  
tuner  
Rm. 2  
power  
ext 7.1  
tape  
mute  
setup  
volume   
volume   
play  
menu  
Function  
Code  
-
Button  
main  
vid 1  
vid 2  
vid 3  
vid 4  
CD  
tuner  
Rm. 2  
power  
ext 7.1  
tape  
mute  
setup  
volume   
volume   
play  
menu  
Function  
Code  
-
131  
132  
133  
134  
136  
137  
203  
128  
193  
138  
130  
-
213  
209  
Selects GTP-870HD codes  
Selects VIDEO 1 codes  
Selects VIDEO 2 codes  
Selects VIDEO 3 codes  
Selects VIDEO 4 codes (GDV-850)  
Selects CD codes (GCD-750)  
Selects GTP-870HD Tuner codes  
Selects GTP-870HD Room 2 codes  
Toggles Power On/Standby  
Toggles External 7.1 input On/Off  
Toggles Tape Monitor On/Off  
Toggles Audio Mute On/Off  
GTP-870HD OSD Setup Menu  
Master Volume UP  
Selects GTP-870HD codes  
Selects VIDEO 1 codes  
Selects VIDEO 2 codes  
Selects VIDEO 3 codes  
Selects VIDEO 4 codes (GDV-850)  
Selects CD codes (GCD-750)  
Selects GTP-870HD Tuner codes  
Selects GTP-870HD Room 2 codes  
Toggles Power On/Standby  
Toggles External 7.1 input On/Off  
Toggles Tape Monitor On/Off  
Toggles Audio Mute On/Off  
Programmable  
131  
132  
133  
134  
136  
137  
203  
128  
193  
138  
130  
129  
213  
209  
113  
129  
64  
Master Volume UP  
Master Volume DN  
Programmable  
Programmable  
Programmable  
Master Volume DN  
GDV-850 play  
GTP-870HD OSD Setup Menu  
OSD Navigation Up  
-
-
-
OSD Navigation Down  
OSD Navigation Left  
OSD Navigation Right  
OSD Select/Enter  
GDV-850 pause/step  
65  
66  
67  
3
49  
50  
87  
222  
199  
80  
144  
145  
146  
147  
148  
149  
150  
151  
152  
153  
140  
141  
143  
11  
211  
221  
208  
79  
207  
77  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Steps surround modes  
Toggles theater EQ On/Off  
Channel balance Adjust menu  
Toggles Noise Gen_Trim Adj. On/Off  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
-
-
-
-
-
-
/  
/  
select  
pause  
stop  
mode  
th-eq  
ch-trim  
test  
1
2
3
4
/  
/  
select  
pause  
stop  
mode  
th-eq  
ch-trim  
test  
1
2
3
4
GDV-850 stop  
Steps surround modes  
Toggles theater EQ On/Off  
Channel balance Adjust menu  
Toggles Noise Gen_Trim Adj. On/Off  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select (+10 adder)  
Tune UP (step)  
Tune DOWN (step)  
87  
222  
199  
80  
-
-
-
-
-
-
-
-
-
-
-
-
-
5
6
7
8
5
6
7
8
9
+10  
tune +  
tune -  
9
+10  
tune +  
tune -  
FM/AM/HD Toggles FM/AM/HD tuner  
FM/AM/HD Programmable  
mem  
Pre/Tune  
St/Mon  
seek  
saves a preset  
mem  
Pre/Tune  
St/Mon  
seek  
Programmable  
Programmable  
Programmable  
Programmable  
Displays Bass adjust menu  
Displays Treble adjust menu  
Toggles tone bypass On/Off  
Toggles Night Mode: 100/75/50/25  
Toggles Lip sync Adj.  
User macro  
-
-
-
-
Toggles Presets/Tuner  
Toggles Stereo/Monaural  
Seek (UP) next Preset/Station  
Displays Bass adjust menu  
Displays Treble adjust menu  
Toggles tone bypass On/Off  
Toggles Night Mode: 100/75/50/25  
Toggles Lip sync Adj.  
User macro  
bass  
bass  
79  
207  
77  
223  
212  
-
treble  
bypass  
d.range  
sync  
treble  
bypass  
d.range  
sync  
223  
212  
-
m1  
m1  
m2  
User macro  
-
m2  
User macro  
-
m3  
User macro  
-
m3  
User macro  
-
m4  
User macro  
-
m4  
User macro  
-
sleep  
dim  
backlight  
Set sleep (off, 30, 60, 90) step  
VFD (Off, Dim, Bright) step  
illuminate remote control  
198  
202  
-
sleep  
dim  
backlight  
Set sleep (off, 30, 60, 90) step  
VFD (Off, Dim, Bright) step  
illuminate remote control  
198  
202  
-
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Using Preprogrammed Commands  
The following commands are preprogrammed for the Video 4 and CD inputs:  
Video 4 (GDV-850) Commands  
CD (GCD-750) Commands  
Button  
main  
vid 1  
vid 2  
vid 3  
vid 4  
CD  
tuner  
Rm. 2  
power  
ext 7.1  
tape  
mute  
setup  
volume   
volume   
play  
menu  
Function  
Code  
-
Button  
main  
vid 1  
vid 2  
vid 3  
vid 4  
CD  
tuner  
Rm. 2  
power  
ext 7.1  
tape  
mute  
setup  
volume   
volume   
play  
menu  
Function  
Code  
-
Selects GFR-700HD codes  
Selects VIDEO 1 codes  
Selects VIDEO 2 codes  
Selects VIDEO 3 codes  
Selects VIDEO 4 codes (GDV-850)  
Selects CD codes (GCD-750)  
Selects GFR-700HD Tuner codes  
Selects GFR-700HD Room 2 codes  
GDV-850 Power On/Off  
Toggles External 7.1 input On/Off  
Toggles Tape Monitor On/Off  
Toggles Audio Mute On/Off  
GDV-850 Setup Menu  
Master Volume UP  
Selects GFR-700HD codes  
Selects VIDEO 1 codes  
Selects VIDEO 2 codes  
Selects VIDEO 3 codes  
Selects VIDEO 4 codes (GDV-850)  
Selects CD codes (GCD-750)  
Selects GFR-700HD Tuner codes  
Selects GFR-700HD Room 2 codes  
GCD-750 Power  
Toggles External 7.1 input On/Off  
Toggles Tape Monitor On/Off  
Toggles Audio Mute On/Off  
Programmable  
131  
132  
133  
134  
136  
137  
203  
101  
193  
138  
130  
33  
213  
209  
113  
99  
100  
61  
131  
132  
133  
134  
136  
137  
203  
6
193  
138  
130  
-
213  
209  
5
15  
-
Master Volume UP  
Master Volume DN  
GCD-750 play  
GCD-750 Open/Close  
Programmable  
Master Volume DN  
GDV-850 play  
GDV-850 Disc Menu  
GDV-850 Navigation Up  
GDV-850 Navigation Down  
GDV-850 Navigation Left  
GDV-850 Navigation Right  
GDV-850 Select/Enter  
GDV-850 pause/step  
GDV-850 stop  
Steps surround modes  
Toggles theater EQ On/Off  
GDV-850 Display Key  
GDV-850 Audio Key  
GDV-850 Key 1  
GDV-850 Key 2  
GDV-850 Key 3  
GDV-850 Key 4  
GDV-850 Key 5  
GDV-850 Key 6  
GDV-850 Key 7  
GDV-850 Key 8  
Programmable  
-
0
1
5
14  
4
60  
GCD-750 Fast Forward  
GCD-750 Fast Reverse  
GCD-750 play  
GCD-750 pause  
GCD-750 stop  
Steps surround modes  
Toggles theater EQ On/Off  
Channel balance Adjust menu  
Toggles Noise Gen_Trim Adj. On/Off  
GCD-750 1  
GCD-750 2  
GCD-750 3  
GCD-750 4  
GCD-750 5  
GCD-750 6  
GCD-750 7  
GCD-750 8  
GCD-750 9  
/  
/  
select  
pause  
stop  
mode  
th-eq  
ch-trim  
test  
1
2
3
4
/  
/  
select  
pause  
stop  
mode  
th-eq  
ch-trim  
test  
1
2
3
4
104  
113  
49  
50  
87  
222  
114  
98  
36  
37  
127  
39  
40  
41  
42  
43  
44  
45  
52  
124  
-
87  
222  
199  
80  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
13  
12  
-
5
6
7
8
5
6
7
8
9
+10  
tune +  
tune -  
GDV-850 Key 9  
GDV-850 Key 10+  
GDV-850 Fast Forward  
GDV-850 Fast Reverse  
9
+10  
tune +  
tune -  
GCD-750 10+  
GCD-750 Forward  
GCD-750 Reverse  
FM/AM/HD Programmable  
FM/AM/HD Programmable  
mem  
Pre/Tune  
St/Mon  
seek  
Programmable  
Programmable  
Programmable  
GDV-850 Goto Key  
Toggles Bass adjust menu  
Toggles Treble adjust menu  
Toggles tone bypass On/Off  
Toggles Night Mode: 100/75/50/25  
Toggles Lip sync Adj.  
User macro  
-
-
-
116  
79  
207  
77  
223  
212  
-
mem  
Pre/Tune  
St/Mon  
seek  
Programmable  
GCD-750 Repeat  
GCD-750 Random  
GCD-750 Scan  
Toggles Bass adjust menu  
Toggles Treble adjust menu  
Toggles tone bypass On/Off  
Toggles Night Mode: 100/75/50/25  
GCD-750 Digital Input  
User macro  
-
73  
78  
70  
79  
207  
77  
223  
68  
-
bass  
bass  
treble  
bypass  
d.range  
sync  
treble  
bypass  
d.range  
sync  
m1  
m1  
m2  
User macro  
-
m2  
User macro  
-
m3  
User macro  
-
m3  
User macro  
-
m4  
User macro  
-
m4  
User macro  
-
sleep  
dim  
backlight  
Auto Off step (off, 30, 60, 90)  
VFD step (Off, Dim, Bright)  
illuminate remote control  
198  
202  
-
sleep  
dim  
backlight  
Auto Off step (off, 30, 60, 90)  
GCD-750 Light  
illuminate remote control  
198  
71  
-
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Using Preprogrammed Commands  
The following commands are preprogrammed for the Tuner and Room 2 inputs:  
Tuner Commands  
Room 2 Commands  
Button  
main  
vid 1  
vid 2  
vid 3  
vid 4  
CD  
tuner  
Rm. 2  
power  
ext 7.1  
tape  
mute  
setup  
volume   
volume   
play  
menu  
Function  
Code  
-
Button  
main  
vid 1  
vid 2  
vid 3  
vid 4  
CD  
tuner  
Rm. 2  
power  
ext 7.1  
tape  
mute  
setup  
volume   
volume   
play  
menu  
Function  
Code  
N/A  
131  
132  
Selects GTP-870HD codes  
Selects VIDEO 1 codes  
Selects VIDEO 2 codes  
Selects VIDEO 3 codes  
Selects VIDEO 4 codes (GDV-850)  
Selects CD codes (GCD-750)  
Selects GTP-870HD Tuner codes  
Selects GTP-870HD Room 2 codes  
Toggles Power On/Standby  
Programmable  
Toggles Tape Monitor On/Off  
Toggles Audio Mute On/Off  
GTP-870HD OSD Setup Menu  
Master Volume UP  
Master Volume DN  
Programmable  
GTP-870HD OSD Setup Menu  
OSD Navigation Up  
OSD Navigation Down  
OSD Navigation Left  
OSD Navigation Right  
OSD Select/Enter  
Programmable  
Selects GTP-870HD codes  
Selects VIDEO 1 codes  
Selects VIDEO 2 codes  
Selects VIDEO 3 codes  
Selects VIDEO 4 codes (GDV-850)  
Selects CD codes (GCD-750)  
Selects GTP-870HD Tuner codes  
Selects GTP-870HD Room 2 codes  
Room 2 Power On/Off  
Programmable  
131  
132  
133  
134  
136  
137  
203  
128  
-
138  
130  
129  
213  
209  
-
129  
64  
65  
66  
67  
3
-
-
87  
133  
134  
136  
137  
203  
74  
-
Programmable  
-
Room 2 Audio Mute On/Off  
Room 2 OSD Menu On/Off  
Room 2 Volume UP  
Room 2 Volume DN  
Programmable  
Room 2 OSD Menu On/Off  
OSD Navigation Up  
OSD Navigation Down  
OSD Navigation Left  
OSD Navigation Right  
OSD Select/Enter  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
81  
75  
85  
86  
-
75  
64  
65  
66  
67  
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
/  
/  
select  
pause  
stop  
mode  
th-eq  
ch-trim  
test  
1
2
3
4
/  
/  
select  
pause  
stop  
mode  
th-eq  
ch-trim  
test  
1
2
3
4
Programmable  
Steps surround modes  
Toggles theater EQ On/Off  
Channel balance Adjust menu  
Toggles Noise Gen_Trim Adj. On/Off  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select  
Tuner preset select (+10 adder)  
Tune UP (step)  
Tune DOWN (step)  
222  
199  
80  
144  
145  
146  
147  
148  
149  
150  
151  
152  
153  
140  
141  
143  
11  
211  
221  
208  
79  
207  
77  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
5
6
7
8
5
6
7
8
9
+10  
tune +  
tune -  
9
+10  
tune +  
tune -  
Programmable  
FM/AM/HD Toggles FM/AM/HD tuner  
FM/AM/HD Programmable  
mem  
Pre/Tune  
St/Mon  
seek  
Saves a preset  
mem  
Pre/Tune  
St/Mon  
seek  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
Programmable  
User macro  
Toggles Presets/Tuner  
Toggles Stereo/Monaural  
Seek (UP) next Preset/Station  
Displays Bass adjust menu  
Displays Treble adjust menu  
Toggles tone bypass On/Off  
Toggles Night Mode: 100/75/50/25  
Programmable  
bass  
bass  
treble  
bypass  
d.range  
sync  
treble  
bypass  
d.range  
sync  
-
-
-
-
223  
-
-
m1  
User macro  
m1  
-
m2  
User macro  
-
m2  
User macro  
-
m3  
User macro  
-
m3  
User macro  
-
m4  
User macro  
-
m4  
User macro  
-
sleep  
dim  
backlight  
Set sleep (off, 30, 60, 90) step  
VFD (Off, Dim, Bright) step  
illuminate remote control  
198  
202  
-
sleep  
dim  
backlight  
Programmable  
Programmable  
illuminate remote control  
-
-
-
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3
4
5
6
On the GTP-870HD remote, press the button to  
be taught.  
Programming Remote Commands  
The orange status LED begins flashing.  
Once you’re familiar with the preprogrammed com-  
mands, you may wish to program specific buttons on  
the GTP-870HD remote to control your source com-  
ponents. To do this, you will need:  
On the Source remote control, press and hold  
the button to be copied.  
The green status LED glows and remains lit.  
Release the button on the Source remote con-  
trol.  
Your source component remote control, which  
will teach the new command.  
The orange status LED begins flashing again.  
The GTP-870HD remote control, which will learn  
the new command.  
Press the button on the Source remote control a  
second time.  
The green status LED blinks twice and then  
goes back to steady orange to indicate that  
the command has been saved.  
Repeat steps 4~6 for any other commands  
you want to teach your GTP-870HD remote  
for that Source component.  
Programming a Command  
1
Place your source remote “head-to-head” with  
the GTP-870HD remote.  
The two remotes should be in line with each  
other, about 2 to 3 inches apart.  
2
On the GTP-870HD remote, press the applicable  
Source and Select buttons simultaneously.  
7
Press the Source and Select buttons simultane-  
ously to save.  
The orange status LED and the Source button  
glow and remain lit.  
The orange status LED blinks twice and turns  
off.  
Status LED  
(Orange/Green/Red)  
Source  
buttons  
Select  
button  
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2
3
Press and hold the Backlight button.  
Deleting Remote Commands  
The red status LED blinks five times.  
The green status LED then blinks twice and  
goes back to steady orange to indicate that  
all commands for the selected Source com-  
ponent have been deleted.  
Deleting a Command  
1
On the GTP-870HD remote, press the applicable  
Source and Select buttons simultaneously.  
The orange status LED and the Source button  
glow and remain lit.  
Press the Source and Select buttons simultane-  
ously to save and exit.  
2
3
Press the button whose function you wish to  
clear.  
The status LED blinks twice and turns off.  
The orange status LED begins flashing.  
Deleting all Commands for all Components  
This procedure erases every programmed command  
accessed under the selected Video 1, Video 2, Video  
3, Video 4, CD, Tuner, and Room 2 input selectors.  
Make sure you really want to do this before following  
the step below.  
Press the Backlight button.  
The green status LED blinks twice and then  
goes back to steady orange to indicate that  
the command has been deleted.  
Repeat steps 2~3 for any other commands  
you wish to delete for that Source compo-  
nent.  
1
Press and hold the Video 2 button and the Back-  
light button simultaneously.  
4
Press the Source and Select buttons simultane-  
ously to save and exit.  
The red status LED blinks twelve times.  
The status LED will then flash green once,  
followed by a single orange pulse.  
The orange status LED blinks twice and turns  
off.  
2
All LEDs will then turn off, indicating that every  
learned command in the GTP-870HD remote has  
been erased.  
Deleting all Commands for a Component  
1
On the GTP-870HD remote, press the Source and  
Select buttons simultaneously.  
The orange status LED and the Source button  
glow and remain lit.  
Backlight button  
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Deleting a Macro button  
Programming Macro Buttons  
1
2
3
Press the Source button (Main or Vid 4) and the  
Ext7.1 button, simultaneously.  
If you find yourself repeatedly pressing the same se-  
quence of buttons while using your GTP-870HD, then  
consider taking advantage of the built-in Macro fea-  
ture. Macros allow you to execute a series of com-  
mands (up to ten button presses) at the touch of a  
single button.  
Hold both buttons until the red light under  
the Source button turns on.  
Press the macro button (M1-M4, Power) you wish  
to delete.  
The red light under the Source button will  
blink once.  
Press the Volume button to delete the mac-  
Each Macro button (labeled M1, M2, M3, and M4) can  
store two macros, one for each “group” of input but-  
tons:  
ro.  
The red Status LED and the Source button  
will blink twice to confirm deletion and then  
turn off.  
Group 1 inputs - Main, Video 1, Video 2, and  
Video 3  
Group 2 inputs - Video 4, CD, Tuner, Room 2  
For example, if you program the M1 macro in Group  
1, the macro will perform the same series of steps  
whether you are in any Group 1 mode (Main, Video 1,  
Video 2, or Video 3).  
Group 1  
Group 2  
Main, Vid 1~3  
Programming a Macro Button  
1
Press a Source button (Main or Vid 4) and the  
Ext7.1 button, simultaneously.  
Vid 4, CD,  
Tuner, Rm 2  
Hold both buttons until the red light under  
the Source button turns on.  
Ext 7.1  
2
Press one of the five macro buttons (M1-M4, Pow-  
er) you wish to program.  
The red light under the Source button will  
blink once for each subsequent button  
press.  
3
Press up to 10 commands you would like to in-  
clude in the macro sequence.  
Pressing a Source button to change modes is  
counted as one command.  
Note:  
The Power On/Off command, for devices other than  
the Main receiver, is programmed into a macro using  
the Ext7.1 button.  
4
Press the Volume button to store the com-  
mands.  
Macro  
Buttons  
M1~M4  
The red Status LED and the Source button  
will blink twice to confirm the program and  
then turn off.  
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Discrete Remote Control Commands  
The GTP-870HD can be controlled via its serial RS-232 port. The serial port can be connected to a media con-  
trol center, PC, or ‘dumb terminal’ via a straight-through standard 9-pin serial port cable (MALE on one end  
and FEMALE on the other end). When using a PC, a terminal emulator program (e.g. HyperTerminal), can be  
used to control the GTP-870HD. The communications parameters should be set as follows:  
9600 baud, 8 data bits, no parity, 1 stop bit, and Flow Control: Hardware.  
All serial port control commands are structured as a four byte packet or string “<SOP>, <cmd>, <data>,  
<EOP>”.  
SPECIAL RESERVED CHARACTERS: <SOP> Start Of Packet = 0x7B = “{“ (The Left Curly Bracket); <EOP> End  
Of Packet = 0x7D = “}” (The Right Curly Bracket).  
Example syntax forthe Discrete Remote Control Command forMain Volume UP’ expressed as a hexadecimal  
string: 0x7B, 0x44, 0x2B, 0x7D  
Function Description  
Data  
0x2B  
0x2D  
0x5B  
0x5D  
0x1F  
0x20  
0x21  
0x22  
0x0A  
0x12  
0x28  
0x29  
0x5C  
0x2C  
0x23  
0x25  
0x40  
0x3F  
0x2F  
0x30  
ASCII  
Function Description  
Data  
ASCII  
Main Volume UP  
Main Volume DOWN  
Main Mute  
+
Direct SurMode select: DOLBY  
PLIIx–PANORAMA  
0x10  
DLE  
-
Direct SurMode select: DTS  
0x34  
0x51  
4
[
Direct SurMode select: DTS NEO:6-  
CINEMA  
Q
Main Un-mute  
Sleep OFF  
]
US  
Direct SurMode select: DTS NEO:6-  
MUSIC  
0x52  
R
Sleep (30)  
SPACE  
Sleep (60)  
!
Direct SurMode select: DTS-ES  
0x39  
0x33  
9
3
Sleep (90)  
Direct SurMode select: ADCOM  
7.1m2 STEREO  
Sleep (120)  
LF  
DC2  
(
Direct SurMode select: 5 CHANNEL  
STEREO  
0x36  
0x37  
6
7
Sleep (180)  
Test tone (noise) On  
Test tone (noise) Off  
VFD (Bright)  
Direct SurMode select: 2 CHANNEL  
STEREO  
)
\
Direct SurMode select: HALL  
OSD Setup Menu (Toggle On/Off)  
OSD Navigation Up  
0x35  
0x11  
0x5E  
0x5F  
0x3D  
0x3C  
0x3E  
0x55  
0x56  
0x57  
0x58  
0x41  
0x42  
0x43  
0x44  
0x45  
0x46  
0x47  
0x48  
0x49  
0x4A  
0x4B  
5
DC1  
^
VFD (Dim)  
,
VFD (OFF)  
#
Dynamic Range Normal (100%)  
Dynamic Range 75%  
Dynamic Range 50%  
Dynamic Range 25%  
%
@
?
OSD Navigation Down  
_
OSD Navigation Select / Enter  
OSD Navigation Left  
=
<
/
OSD Navigation Right  
>
Surround Mode select: (steps  
through available modes)  
0
Front Left Channel Trim +  
Front Left Channel Trim -  
Front Right Channel Trim +  
Front Right Channel Trim -  
Surround Left Channel Trim +  
Surround Left Channel Trim -  
Surround Right Channel Trim +  
Surround Right Channel Trim -  
Surround Back Left Channel Trim +  
Surround Back Left Channel Trim -  
Surround Back Right Channel Trim +  
Surround Back Right Channel Trim -  
Center Channel Trim +  
U
V
W
X
Direct SurMode select: DOLBY  
DIGITAL  
0x38  
0x31  
0x53  
0x2E  
0x54  
0x32  
0x0E  
0x0F  
8
1
Direct SurMode select: DOLBY PRO  
LOGIC  
A
B
Direct SurMode select: DOLBY PLII-  
CINEMA  
S
C
D
E
Direct SurMode select: DOLBY PLII-  
MUSIC  
.
Direct SurMode select: DOLBY PLII-  
PANORAMA  
T
F
Direct SurMode select: DOLBY  
DIGITAL EX  
2
G
H
I
Direct SurMode select: DOLBY PLIIx-  
CINEMA  
SO  
SI  
Center Channel Trim -  
J
Direct SurMode select: DOLBY PLIIx-  
MUSIC  
Subwoofer Channel Trim +  
K
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Function Description  
Data  
0x4C  
0x0D  
ASCII  
L
Function Description  
TUNER mode – PRESET  
TUNER mode – TUNE  
Data  
0x67  
0x68  
0x73  
ASCII  
Subwoofer Channel Trim -  
e
h
s
Lip Sync Adjust Down (Decrease  
delay)  
CR  
TUNER MEMORY Function (Select/  
Save)  
Lip Sync Adjust Up (Increase delay)  
Theater EQ compensation - ON  
Theater EQ compensation - OFF  
0x60  
0x69  
0x6A  
0x71  
`
i
TUNER Preset 1 Select  
TUNER Preset 2 Select  
TUNER Preset 3 Select  
TUNER Preset 4 Select  
TUNER Preset 5 Select  
TUNER Preset 6 Select  
TUNER Preset 7 Select  
TUNER Preset 8 Select  
TUNER Preset 9 Select  
0x74  
0x75  
0x76  
0x77  
0x78  
0x79  
0x7A  
0x7C  
0x7E  
0x7F  
t
u
v
j
Select: “tape” Monitor (Toggle  
On/Off)  
q
w
x
y
z
Select: “ext 7.1 inputs” - On  
Select: “ext 7.1 inputs” - Off  
0x26  
0x2A  
0x59  
&
*
Select Analog “audio” input (for  
Current Source)  
Y
|
~
Select Digital “coaxial 1” input (for  
Current Source)  
0x5A  
0x3A  
0x3B  
0x05  
0x24  
0x27  
Z
TUNER Preset 10+ Select (access  
11-32)  
Select Digital “coaxial 2” input (for  
Current Source)  
:
Tone EQ Control - On  
0x0C  
0x13  
0x15  
0x14  
FF  
Select Digital “coaxial 3” input (for  
Current Source)  
;
ENQ  
$
Tone EQ Control - Off  
DC3  
NAK  
DC4  
Select Digital “optical 1” input (for  
Current Source)  
Tone EQ Control – Toggle On/Off  
Tone Reset (Set Bass & Treble =  
0dB)  
Select Digital “optical 2” input (for  
Current Source)  
Bass EQ Adjust  
0x16  
0x17  
0x01  
SYN  
ETB  
SQH  
Select Digital “optical 3” input (for  
Current Source)  
Treble EQ Adjust  
Room 2 Volume UP (when RM2 is  
active)  
Select Source: VIDEO 1  
Select Source: VIDEO 2  
Select Source: VIDEO 3  
Select Source: VIDEO 4  
Select Source: CD  
0x6B  
0x6C  
0x6D  
0x6E  
0x70  
0x6F  
0x72  
0x61  
0x62  
0x63  
0x64  
0x65  
0x66  
k
l
Room 2 Volume DOWN (when RM2  
is active)  
0x02  
STX  
m
n
p
o
r
Room 2 Mute (when RM2 is active)  
0x03  
0x04  
ETX  
EOT  
Room 2 Un-mute (when room 2 is  
active)  
Select Source: TUNER (AM)  
Select Source: TUNER (FM)  
TUNER Scan +  
Selects Input: VID 2 for Room 2  
(when RM2 is active)  
0x06  
0x07  
0x08  
0x09  
0x0B  
ACK  
BELL  
BS  
a
b
c
d
e
f
Selects Input: VID 3 for Room 2  
(when RM2 is active)  
TUNER Scan -  
TUNER STEP +  
Selects Input: VID 4 for Room 2  
(when RM2 is active)  
TUNER STEP -  
FM mode – MONO  
Selects Input: CD for Room 2 (when  
RM2 is active)  
HT  
FM mode – STEREO  
Selects TUNER for Room 2 (when  
RM2 is active)  
VT  
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Chapter 4 - Operations  
Operations Overview  
Now that you’ve connected and configured your GTP-  
870HD, it’s time for the fun part—enjoying the full  
power and performance of your Adcom system. This  
chapter covers:  
Basic Audio/Video Playback ..................... 56  
Ext. 7.1 Playback .................................. 56  
Tape Playback ..................................... 56  
Selecting Surround Modes ....................... 57  
Tone Control ....................................... 58  
Basic Recording.................................... 59  
Tuner Operations.................................. 60  
System Operations .................................61  
Room 2 Operations................................ 62  
 
 
 
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Zoom - Zooms the on-screen image proportion-  
ally, preserving the original aspect ratio but  
cropping the picture.  
Squeeze - Compresses a widescreen image to a  
4:3 display.  
NLS (Non-linear Stretch) - Stretches a 4:3 image  
to 16:9, but preserves the correct aspect ratio in  
the center of the picture.  
Basic Audio/Video Playback  
Follow these steps to play an audio/video source  
component connected to the Video 1, Video 2, Video  
3, Video 4, or CD inputs.  
Playing an AV Source Component  
1
Before you begin:  
Power on the GTP-870HD.  
Power on your source component.  
Power on your TV/display (if applicable).  
Power on your amp/subwoofer (if applicable)  
External 7.1 Playback  
If your source component is connected to the Ext 7.1  
jacks, simply press the Ext 7.1 button on the remote  
control or front panel.  
2
3
Select your input source.  
Press the desired Source selector button  
(Video 1, Video 2, Video 3, Video 4, or CD)  
on the GTP-870HD.  
To connect a source component to the Ext 7.1 in-  
puts (usually a DVD, DVD-Audio, or SACD player),  
see page 20.  
Play your Source component.  
If you programmed the GTP-870HD remote  
control, press the Play button to initiate  
playback on your Source component.  
Tape Playback  
The output signal from your Source compo-  
nent will be heard through your speaker sys-  
tem and/or seen on your display device.  
If your source component is connected to the Tape  
input, press the Tape button on the remote control  
or front panel.  
4
Adjust the volume.  
To connect a source component to the Tape in-  
puts, see page 21.  
Turn the Volume knob to adjust the volume  
from -80dB to 18dB.  
Special Playback Features  
During playback, choose from these special playback  
features:  
Mute - Press the Mute button to temporarily  
mute the audio.  
Surround modes - Press the Mode button to over-  
ride the default Surround mode and choose one  
of the many built-in options to suit your source  
material; see page 57.  
Source  
buttons  
Mute  
Theater EQ - Press the TH-EQ button to enable  
Theater EQ sound.  
Dynamic Range - Press the D. Range button to  
compress the dynamic range of your audio out-  
put (aka, “night mode”).  
Sync - Press the Sync button and use the /  
buttons to delay the audio if the sound is out of  
sync with the picture. Press Sync again to toggle  
lip sync delay on and off.  
Ext7.1/  
Tape  
Volume  
Select  
(Format)  
Play  
Mode  
TH-EQ  
Picture Format  
During playback, press the Select button and use the  
/buttons to set the picture format to one of the  
following:  
Auto - Automatically selects the best picture  
format for the current output resolution.  
Full - Stretches a standard 4:3 image to fill a wi-  
descreen (16:9) display.  
Sync  
D. Range  
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PLIIX-C, PLIIX-M, PLIIX-P  
Selecting Surround Modes  
Uses Dolby Pro Logic IIx decoding to expand incoming  
stereo signals to 6.1- or 7.1-channel surround sound.  
Choose “C” for cinema, “M” for music, or “P” for  
playing video games. Use if:  
If source components are the main course in your  
home entertainment center, then Surround modes  
provide the special sauce. Surround modes process  
incoming audio signals and distribute them to your  
speakers—with each mode configured to bring out  
the unique flavor of your source material and send  
just the right mix to suit your personal taste and spe-  
cific speaker configuration.  
Your source component is connected to the ana-  
log or digital audio inputs.  
Your source audio is in 2-channel analog or digi-  
tal PCM format.  
You have six or seven speakers plus a subwoof-  
er.  
To set the default Surround mode for each input,  
see page 33.  
To select Surround modes on the fly, press the  
Mode button on the remote control or the Sur  
Mode button on the front panel.  
DTS Surround Modes  
DTS  
Decodes the DTS 6-channel digital bit-  
streams found on many commercial DVDs.  
Use if:  
Dolby Surround Modes  
Your source component is connected  
to the GTP-870HD’s coaxial or optical digital au-  
dio inputs.  
Your source audio is in DTS format.  
You have five speakers plus a subwoofer.  
DOLBY-D  
Decodes the Dolby Digital 5.1-channel  
bitstreams found on most commercial  
DVDs, as well as some HDTV and digital  
cable/satellite programs. Use if:  
Your source component is connected to the GTP-  
870HD’s coaxial or optical digital audio inputs.  
Your source audio is in Dolby Digital 5.1 format.  
You have five speakers plus a subwoofer.  
DTS-ES  
Decodes the DTS-ES 8-channel digital bitstreams  
found on newer commercial DVDs. Use if:  
Your source component is connected to the GTP-  
870HD’s coaxial or optical digital audio inputs.  
Your source audio is in DTS-ES format.  
DOLBY-D EX  
Decodes the Dolby Digital EX 7.1-channel digital bit-  
streams found on newer commercial DVDs. Use if:  
You have seven speakers plus a subwoofer.  
Your source component is connected to the GTP-  
870HD’s coaxial or optical digital audio inputs.  
Your source audio is in Dolby Digital EX format.  
You have seven speakers plus a subwoofer.  
NEO:6 C, NEO:6 M  
Uses DTS Neo:6 decoding to expand incoming stereo  
signals from movie or music sources (e.g., VHS tapes,  
CDs or video games) to 6-channel surround sound.  
Choose “C” for cinema, or “M” for music. Use if:  
DOLBY PL  
Your source component is connected to the ana-  
log or digital audio inputs.  
Your source audio is in 2-channel analog or digi-  
tal PCM format.  
Uses Dolby Pro Logic decoding to expand incoming  
stereo signals to 4-channel surround sound, where  
the surround channel is the same for both surround  
speakers. Use if:  
You have five speakers plus a subwoofer.  
Your source component is connected to the ana-  
log or digital audio inputs.  
Your source audio is in 2-channel analog or digi-  
tal PCM format.  
You have five speakers (LF, RF, C, LS, RS).  
PLII-C, PLII-M, PLII-P  
Uses Dolby Pro Logic II decoding to expand incoming  
stereo signals to 5-channel surround sound, where  
the surround channel is discrete for both surround  
speakers. Choose “C” for cinema, “M” for music, or  
“P” for playing video games. Use if:  
Your source component is connected to the ana-  
log or digital audio inputs.  
Your source audio is in 2-channel analog or digi-  
tal PCM format.  
You have five speakers (LF, RF, C, LS, RS).  
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Other Surround Modes  
Tone Control  
7.1 m2  
Manual Bass/Treble Control  
Follow these steps to make Bass/Treble adjustments  
on the fly:  
Uses an Adcom-proprietary digital pro-  
cessing technology to expand incoming  
stereo signals to 7.1-channel surround  
sound. Use if:  
Press the Bypass button on the remote control to  
toggle Tone Control on.  
Use the Bass and Treble buttons to bring up the  
tone adjustment on-screen display.  
Your source component is connected to the ana-  
log or digital audio inputs.  
Your source audio is in 2-channel analog or digi-  
tal PCM format.  
Use the /buttons to set the desired level.  
You have seven speakers plus a subwoofer.  
Notes:  
The tone adjustment on-screen display times out  
STEREO  
after 3 seconds if no button is pressed.  
Tone controls are not available in the Dolby  
Digital EX, DTS-ES, NEO6, and Pro Logic IIx Surround  
modes.  
Passes an incoming or downmixed stereo signal to  
the front speakers. Use if:  
Your source component is connected to an ana-  
log or digital audio input.  
Your source audio is in 2-channel analog or digi-  
tal PCM format.  
You have at least two speakers (LF/RF), or would  
simply prefer to listen to a multi-channel source  
through your two front speakers.  
HALL  
Creates a hall or amphitheater effect from an incom-  
ing or downmixed stereo signal. Use if:  
Your source component is connected to an ana-  
log or digital audio input.  
Your source audio is in 2-channel analog or digi-  
tal PCM format.  
You have at least two speakers (LF/RF), or would  
simply prefer to listen to a multi-channel source  
through your two front speakers.  
5-STEREO  
Generates maximum output for a five speaker sys-  
tem. The rear speakers are driven with the same  
signal as the front left and right, while the center  
speaker is a monophonic summation of the front  
speakers. Use if:  
Your source component is connected to an ana-  
log or digital audio input.  
Your source audio is in 2-channel analog or digi-  
tal PCM format.  
You have at at least five speakers (LF/RF, C, LS/  
RS).  
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3
4
5
Cue your Source device.  
Basic Recording  
Tune to the desired radio or TV station, or  
insert and cue up the media (video, CD, DVD,  
PVR, etc.) you wish to record.  
Follow these steps make a recording using the play-  
back and recording components connected to the  
GTP-870HD. You will first need to identify your  
Source and Target components.  
Cue your Target device.  
Insert and cue up the recordable media  
(blank tape, CD-R/RW, DVD-R/RW, etc.) you  
wish to record to.  
Source - This can be the AM/FM tuner or any  
connected audio/video device (e.g, a cable box,  
DVD player, VCR, etc.).  
Start recording.  
Start recording on your Target component,  
Target - This can be any connected recording  
device (e.g., a VCR, DVD recorder, PVR, tape re-  
corder, etc.).  
then start playback on your Source compo-  
nent.  
The output signal from your Source compo-  
nent will be heard through your speaker sys-  
tem and/or seen on your display device.  
Making an Audio/Video Recording  
1
Before you begin:  
Power on the GTP-870HD.  
Power on your Source component.  
Power on your Target component.  
Power on your TV/display (if applicable).  
Power on your amp/subwoofer (if applicable).  
Notes:  
You can record using composite and S-video con-  
nections interchangeably, but you won’t be able to  
record sources connected to the Component video  
inputs.  
2
Select your Source device.  
Press the desired Source selector button  
(Tuner, Video 1~Video 4 or CD) on the GTP-  
870HD.  
Some audio/video sources are copy-protected, and  
cannot be recorded.  
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Selecting Preset Stations  
To select preset stations:  
Tuner Operations  
Press the Tune +/- buttons on the remote control.  
or  
Press the Up/Down buttons on the front panel.  
Follow these steps to use the GTP-870HD’s built-in  
AM/FM tuner. Before you begin, make sure the AM/  
FM antennas are properly connected; see page 14.  
Scanning Preset Stations  
To automatically scan your presets:  
Selecting Tuner Mode  
To select Tuner mode:  
1
2
Switch to Preset mode.  
Press the Seek button on the remote control to  
start scanning presets.  
Press the Tuner button on the remote control.  
or  
Press the FM/AM button on the front panel.  
The GTP-870HD will play each preset station  
for a few seconds in sequential order.  
Selecting the Tuner Band  
To switch between the AM/FM bands:  
3
Press the Seek button again to stop scanning.  
Press the FM/AM/HD button on the remote control.  
or  
Press the FM/AM button on the front panel.  
Improving Tuner Reception  
To improve tuner reception:  
Press the St/Mono button on the remote control  
to switch between Stereo and Mono reception.  
Sometimes a poor quality stereo signal will im-  
prove when switched to Mono mode.  
Switching between Manual and Preset tuning  
Manual tuning is used to tune stations and store pre-  
sets. Preset Tuning is used to select and scan preset  
stations. To switch between manual and preset tun-  
ing:  
Press the Pre/Tune button on the remote control.  
or  
Press the Tuner/Preset button on the front panel.  
Tuning Stations Manually  
To manually tune stations:  
Press the Tune +/- buttons on the remote con-  
trol.  
Tuner  
-
-
The AM tuner steps in 10KHz increments.  
The FM tuner steps in .05MHz increments.  
Tuning Stations Automatically  
To automatically scan for stations:  
Press the Seek button on the remote control.  
or  
Press the Up/Down buttons on the front panel.  
Storing Stations as Presets  
The GTP-870HD allows you to store up to 64 presets  
(32 for each band). To store the selected station as  
a preset:  
1
2
Press the Mem button on the remote control.  
Assign a preset number.  
Tune +/-  
Pressing the Mem button automatically as-  
signs the selected station to the next avail-  
able preset number.  
To assign the preset to a different number,  
use the Tune +/- buttons to select the de-  
sired preset number, and then press the  
Mem button to save.  
Seek  
St/Mon  
FM/AM  
Mem  
Pre/Tune  
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Using the Front Panel Display Dimmer  
The front panel display has three brightness levels  
to suit any need.  
System Operations  
The GTP-870HD includes additional features that en-  
hance the user experience, including a built-in sleep  
timer and front panel display dimmer.  
To adjust the dimmer:  
1
Press the Dim button on the remote control.  
Each press changes the brightness of the  
front panel display.  
Choose from bright, medium, or low.  
Using the Sleep Timer  
If you enjoy falling asleep while watching TV or lis-  
tening to music, you can use the sleep timer to auto-  
matically power off the GTP-870HD after a set period  
of time.  
To set the sleep timer:  
1
Press the Sleep button on the remote control.  
The first press displays the current status of  
the Sleep timer.  
Subsequent presses change the duration of  
the sleep timer from 30~180 minutes.  
2
When the set time elapses, the GTP-870HD will  
go into Standby mode.  
Note:  
To cancel the sleep timer, press the Sleep button  
until “Sleep Timer Off” appears.  
Sleep  
Dim  
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Room 2 Operations  
The Room 2 feature makes the GTP-870HD a true  
multi-tasking device. For example, you can watch a  
movie in one room and play a CD in another at the  
touch of a button.  
To use the Room 2 feature, you must have:  
An amplifier or receiver connected to the Zone 2  
Outputs; see page 28.  
A Room 2 input source specified in the Setup  
menu; see page 41.  
Activating the Room 2 Output  
To activate the Room 2 output:  
1
2
Power on the GTP-870HD.  
Select the Room 2 output.  
Overriding Default Room 2 Settings  
Press the Rm 2 button on the remote control.  
You can change the Room 2 input, volume, and mute  
settings from the front panel without going through  
the main Setup menu:  
or  
Press the Room 2 On/Off button on the front  
panel.  
1
Select the Room 2 Config menu.  
3
4
Power on your Room 2 component.  
Press the Room 2 Setup button on the front  
panel.  
Note: The Room 2 component will power on  
automatically if you connected it to the Zone  
2 12V DC trigger.  
2
Make changes to Room 2 settings.  
Press the Room 2 Setup button repeatedly to  
step through each menu item.  
Adjust the volume.  
If you used the Variable Zone 2 outputs, use  
the Volume knob on the GTP-870HD.  
Use the front panel Volume Knob or Up/Down  
buttons to select menu options.  
If you used the Fixed Zone 2 outputs, use the  
volume control on your Room 2 component.  
3
Menu options include:  
Room 2 (On/Off)  
Mute (On/Off)  
Input (Video 2~4, CD, Tuner AM/FM)  
Volume level (-65 dB to 0 dB)  
Notes:  
The GTP-870HD can be in Standby or On modes for  
Room Two operation.  
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Chapter 5 - Help  
writing and if the shipping carton and packing mate-  
rials are not available for inspection by the carrier.  
Save all packing materials until the claim has been  
settled.  
Customer Support  
Use the Troubleshooting chart on page 64 to resolve  
common situations that don’t require professional at-  
tention. If the information provided does not resolve  
your problem, please contact your Adcom dealer or  
contact the Adcom customer service department as  
follows:  
A Special Note on “Hum”  
If there is a low-volume “hum” audible throughout  
your speakers, even with the main volume turned  
all the way down, you have a common phenomenon  
known as a “ground loop.Generally, the cause of a  
ground loop is the CableTV incoming signal line.  
Adcom, LLC  
8541 E. Anderson Dr., Suite 101  
Scottsdale, Arizona 85255  
To determine if your cable system is the contributing  
factor, disconnect the CableTV incoming signal line  
(round, 75Ω) at the wall, or the first component the  
cable is connected to (e.g. the cable box or VCR). If  
the hum is no longer present, you must insert a “75Ω  
ground loop isolator” before reconnecting the line.  
Check with your Adcom dealer to obtain one.  
Telephone: (480) 607-2277  
Fax: (480) 348-9876  
Email: service@adcom.com  
Adcom Protection Plan  
Adcom offers the enclosed valuable Limited War-  
ranty. Please read the details on the Warranty Card  
carefully to understand the extent of the protection  
offered by the Warranty, its reasonable limitations,  
and what you should do in order to obtain its ben-  
efits. Be sure to verify that the serial number printed  
on the rear panel matches the serial number on the  
outer carton. If any number is altered or missing, you  
should notify us immediately in order to ensure that  
you have received a genuine Adcom product which  
has not been opened, mishandled, or tampered with  
in any way. Always retain your original sales receipt  
as a proof of purchase.  
System Reset  
In rare cases the GTP-870HD internal processor may  
freeze or lock-up causing abnormal operation. This  
is common to all micro-processor controlled devic-  
es when the unit is subject to excessive static dis-  
charge, AC line noise, or power spikes. In most cases  
it is easy to solve this problem by simply turning off  
the GTP-870HD with the rear power switch (position  
0) for about five minutes. After waiting, turn the unit  
back on (position 1). If the unit functions normally,  
no further action is needed.  
In the event that the unit still does not operate prop-  
erly, it may be necessary to manually reset the pro-  
cessor. Note, however, that when the processor is  
reset you will lose all settings including digital au-  
dio assignments, surround mode settings, speaker  
configurations, tuner presets and any other memory  
items. For this reason we strongly recommend that  
you record these settings so that it is easy to restore  
them after resetting the processor. To reset the unit  
to factory default settings you will need to enter the  
discrete remote control command. Please refer back  
to the discrete remote control commands table. The  
command name is “Factory Defaults, the IR code is  
86h. This should reset the system.  
Product Care & Maintenance  
Before your Adcom preamp/processor left our fac-  
tory, it was carefully inspected for physical imper-  
fections and tested for all electrical parameters as  
a routine part of Adcom’s systematic quality control.  
This, along with full operational and mechanical  
testing, should ensure a product flawless in both ap-  
pearance and performance.  
After you have unpacked the GTP-870HD, inspect it  
for physical damage. Save the shipping carton and  
all packing material as they are intended to reduce  
the possibility of transportation damage should the  
unit ever need to be shipped again. In the unlikely  
event damage has occurred, notify your dealer im-  
mediately and request the name of the carrier so a  
written claim to cover shipping damages can be initi-  
ated. The right to a claim against a public carrier can  
be forfeited if the carrier is not notified promptly in  
If the manual reset does not solve the problem, con-  
tact your authorized Adcom dealer, an authorized  
Adcom service center or contact Adcom’s service  
department directly for further advice.  
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Troubleshooting  
The table below shows possible causes and solutions to common GTP-870HD issues. If you do not see the an-  
swers you need here, please contact your Adcom dealer or customer service department; see page 63.  
Symptom  
Possible Reason  
Possible Solution  
No sound  
• Power cable unplugged  
• Rear panel power switch turned off (0)  
• Tape Monitor selected  
• Mute on  
• Plug in power cable  
• Turn rear panel power switch on (1)  
• Press Tape to de-select Tape Monitor  
• Switch off Mute  
• Incorrect Input Config setting  
• Amplifier powered off  
• Make sure audio input is set correctly in Input  
Config menu  
• Power on amplifier  
No sound on one  
channel  
• Speaker not properly connected or damaged  
• Input cable disconnected or damaged  
• Speaker set to “None” in menu system  
• Check connections and speakers  
• Check cables and connections  
• In Speaker Config menu, set speaker to “Small” or  
“Large”  
No sound on surround • No surround mode selected  
• Select a surround mode  
channels  
• Mono sound source  
• Speakers/amplifier not properly connected  
• Surround volume level too low  
• Test system with stereo or Dolby Surround mate-  
rial  
• Check speaker/amplifer connections  
• Increase surround volume level  
No sound on center  
channel  
• Center speaker set to “None” in menu system  
• Speakers/amplifier not connected properly  
• Center volume level set too low  
• In Speaker Config menu, set Center speaker to  
“Small” or “Large”  
• Check speaker/amplifier connections  
• Increase Center volume level  
“Dolby Digital” OR  
“DTS” auto-detec-  
tion function does not  
work  
• Source not connected using digital input  
• Incoming signal is set to PCM instead of Bitstream • Check the Digital Out setting on your source  
component  
• Connect digital output of source to GTP-870HD  
Weak bass/diffuse  
stereo image  
• Speakers wired out of phase  
• Check connections to all speakers in the system  
Remote control not  
working  
• Batteries dead, or incorrectly inserted  
• IR transmitter or receiver windows obstructed  
• IR receiver in direct sun or bright ambient light  
• Check or replace batteries  
• Remove obstruction  
• Place unit away from direct sun, reduce amount  
of ambient light  
No sound with tuner  
• Antenna leads incorrectly connected  
• Station not selected or weak signal  
• Mute on  
• Check antenna connections to preamplifier  
• Re-tune  
• Switch off Mute  
Noise, hiss on AM and  
FM  
• Weak signal  
• Check station tuning  
• Adjust or replace antenna  
• Press St/Mono button to reduce hiss  
Distortion on FM  
• Multi-path signals or interference from another  
station  
• Check station tuning  
• Adjust or replace antenna  
Whistles or buzzes on  
FM & AM  
• Interference from other electrical sources, e.g.,  
computers or games consoles  
• Check station tuning  
• Switch off or move the source of the electrical  
noise  
Whistles or buzzes  
on AM  
• Interference from fluorescent lighting or electri-  
cal motor  
• Check station tuning  
• Adjust or replace AM antenna  
No picture  
• Incorrect TV input selected  
• Check the input setting on your TV  
• If the GTP-870HD is connected to your TV in  
more than one way (e.g., S-video and Component  
video), select the TV input that corresponds with  
your selected source component  
Cannot access setup  
menu  
• Not in Main mode  
• HDMI or Progressive Scan video output selected  
• Press Main, then press Setup  
• Select Video, S-video, or Component output to  
view Setup menus  
Cannot power off unit • Setup menu is active  
• Press Setup to exit the Setup menu, then power  
off unit  
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Technical Specifications  
PREAMPLIFIER ANALOG SECTION  
VIDEO SECTION  
Impedance (Input/Output) .......................75 Ohm  
Bandwidth  
• Composite & S-Video .................. 6MHz -3dB  
• Component........................... 200MHz -3dB  
Transcoding  
• Composite/S-Video/Component .... 480i & 576i  
Switching  
Input Impedance ........................................47k  
Output Impedance (Main-RCA)................<600 Ohm  
Rated Input ........................................ 1.0Vrms  
Maximum Input (@ 4Vrms Input Sens.) ........ 4.1Vrms  
Rated Output (100k load)........................ 2.0Vrms  
Minimum Load............................................ 5k  
Maximum Output ................................... 8Vrms  
Volume & Trim Range (relative to 0dB Trim)  
• Main .................. -80dB to +18dB (0.5dB res)  
• Main Trim.............-10dB to +10dB (1.0dB res)  
• Main Input Sens./Input ..................1V/2V/4V  
• Room 2.................-65dB to +0dB (1.0dB res)  
• Room 2 Trim ........... -8dB to +8db (1.0dB res)  
• Room 2 Gain/Input... +0dB to +6dB (2.0dB res)  
Channel Separation (at 1kHz) ....................(>65dB)  
Frequency Response  
• HD Component (Auto Bypass) .......480p-1080p  
• HDMI (Switching Video/Audio/  
DDC/HPD) ...............................480i-1080p  
GENERAL  
Supply Voltage (Switchable)..............120vAC-60Hz/  
230vAC-50Hz  
Power Consumption ...................50watt maximum  
Dimensions  
• Analog DSP Input ..... 20Hz to 20kHz +0/-0.2dB  
• Analog Ext7.1 Input . 20Hz to 100kHz +0/-0.2dB  
THD+N (@ Rated Input & Output)  
• Analog DSP Input ......0.007% (20kHz Low Pass)  
• Analog Ext7.1 Input ...0.006% (80kHz Low Pass)  
S/N Ratio (ref. 2.0Vrms A-weighted)  
• Width......................... 17 inches (431.8mm)  
• Rack Height .................. 7 inches (177.8mm)  
• Full Height.................. 7.5 inches (190.5mm)  
• Depth of Chassis..........15.5 inches (393.7mm)  
• Full Depth ...................19 inches (482.6mm)  
Unit Weight ................................35 lbs. (15.9kg)  
Trigger Outputs  
• Main .................................50mA @ 12vDC  
• Room 2..............................50mA @ 12vDC  
IR Inputs  
• Analog - DSP Input ............................ 93dB  
• Analog - Ext 7.1 Input....................... 100dB  
PREAMPLIFIER DIGITAL SECTION  
Frequency Response  
• Digital Input............10Hz to 22kHz +0/-0.2dB  
THD+N (@ Rated Input & Output)  
• Digital Input................. 0.009% (A-weighted)  
S/N Ratio (ref. 2.0Vrms A-weighted)  
• Main ..................................... 3.5mm T/R  
• Room 2.................................. 3.5mm T/R  
RS232 Control.........................9600 baud/8 - N-1/  
Flow Control = Hardware  
• Digital Input....................................99dB  
Bass Management (Front/Center/Surround/Sub)  
• High-Pass Slope.............Crossover Frequency  
• (Small Spkr Setting).... 12dB/octave (2nd order)  
(Adj. 40/60/80/100/120/150Hz)  
• Low-Pass Slope (Sub) ...24dB/octave (4th order)  
(Adj. 40/60/80/100/120/150Hz)  
• Delay Mgmt (Feet or Meters relative 1ms/ft)  
• Front/Center/Surr/Surr Back/Sub ........0-20 ft  
• Lip Sync Delay .............................0-169mS  
FM TUNER SECTION  
Sensitivity  
• 30dB S/N................................. 6dBu typ.  
S/N Ratio  
• Mono ...................................... 65dB typ.  
• Stereo..................................... 55dB typ.  
Distortion  
• Mono .......................................0.3% typ.  
• Stereo......................................0.5% typ.  
Stereo Separation............................... 35dB typ.  
Adjacent Channel Selectivity ................. 50dB typ.  
Frequency Response............ 50Hz to 15kHz +1/-3dB  
Specifications are subject to change  
without notice.  
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Index  
A
H
S
Analog Input Level 45  
Audio Cables 13  
HDMI 19, 22, 34  
Safety Instructions 4  
Scaler 19, 34  
Setup  
Navigation 32  
Overview 31  
Sleep Timer 61  
Speaker  
Configuration 37  
Placement 23  
Surround Modes  
Dolby 57  
DTS 57  
Selecting 57  
Sync 9, 56  
System Configuration 43  
System Operations 61  
I
C
Input Configuration 33  
Input Labeling 44  
Channel Balance 39  
Connections  
Amplifier 24, 25  
Antenna 14  
Audio/Video 15  
CableTV box 15  
CD Player 21  
Component Video 17  
Digital Audio 18  
DVD Player 16  
External Decoder 20  
HDMI 19  
HDTV set-top box 15  
iPod docking station 15  
IR Sensor 29  
Laser disc player 15  
Media PC 15  
L
Label Source 44  
Lip Sync Delay 9  
M
Macro Programming 52  
N
Neo:6 Configuration 40  
T
O
Tone Control 58  
Troubleshooting 64  
Tuner Operations 60  
On-Screen Display 12, 22  
P
Overview 13  
U
Power Cable 30  
Progressive Scan 17  
PVR 15  
Picture Controls 35  
Picture Format 56  
Placement 6  
Unpacking 5  
Recorder 26  
Room 2 28  
Satellite receiver 15  
Subwoofer 25  
Tape Player 21  
Trigger 29  
VCR 15  
Customer Support 63  
Playback  
Basic Audio/Video 56  
External 7.1 56  
Tape 56  
Preprogrammed Commands 47,  
V
Video Cables 13  
Voltage Switch 30  
Volume/Tone Configuration 36  
W
Product Care & Maintenance 63  
Pro Logic IIx Configuration 40  
Warranty 63  
R
D
Rear Panel  
Delay Configuration 38  
Dimmer 61  
Overview 10  
Recording 59  
Regulatory Information 4  
Remote Control  
Batteries 6  
Discrete Commands 53  
Overview 8  
F
Features 5  
Front Panel  
Display 12  
Overview 7  
Programming 50  
Setup 46  
Room 2 Configuration  
Advanced 42  
Basic 41  
Room 2 Operations 62  
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Adcom shall not be liable for any errors contained herein or for any damages arising out of or related to this document or the informa-  
tion contained herein, even if Adcom has been advised of the possibility of such damages. This document is intended for informational  
and instructional purposes only. Adcom reserves the right to make changes in the specifications and other information contained in this  
document without prior notification. Adcom disclaims any obligation to update the information contained herein.  
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8541 East Anderson Drive, Suite 101  
Scottsdale, Arizona 85255  
Voice: 480.607.2277  
Fax: 480.348.9876  
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