Scientific Atlanta Flat Panel Television 3250HD User Guide

Explorer® 3250HD™  
Digital Interactive Set-Top  
UsersGuide  
In This Guide  
SafetyInformation .............................................2  
Introduction.......................................................4  
Front Panel Overview.......................................5  
Back Panel Overview Standard Model ............6  
Back Panel Overview Loop-Through Model....7  
HDTV and SDTV Differences...........................8  
Connecting Entertainment Devices..................10  
Connecting the 3250HD ..................................12  
Connecting the 3250HD Loop-Through ..........16  
Watching TV.....................................................24  
Frequently Asked Questions About HDTV.......26  
Compliance Information ...................................27  
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Safety Compliance Statements  
Power Sources  
Object and Liquid Entry  
A label on this set-top indicates the correct  
power source for this set-top. Operate this set-  
top only from an electrical outlet that has the  
voltage and frequency that the label indicates.  
Never push objects of any kind into this product  
through openings as they may touch dangerous  
voltage points or short out parts that could  
result in a fire or electric shock. Do not expose  
this set-top to liquid or moisture. Do not place  
this set-top on a wet surface. Do not spill  
liquids on or near this set-top.  
If you are unsure of the type of power supply to  
your residence, consult your cable service  
provider or your local power company.  
Power Cord Polarization  
This set-top has a two-prong plug. Properly  
ground (earth) this set-top by inserting the plug  
into a grounded electrical, two-socket outlet. If  
this plug is polarized, it has one wide prong and  
one narrow prong. This plug fits only one way.  
WARNING:  
Avoid electric shock and fire hazard. Never  
push objects through openings in this set-top.  
These objects can cause electrical shorts  
that can result in electric shock or fire. Do not  
expose this set-top to rain or moisture. Do not  
place objects filled with liquid (such as vases)  
on this set-top.  
CAUTION:  
To prevent electric shock, match wide blade  
of plug to the wide slot, and then fully insert.  
If you are unable to insert this plug fully into the  
outlet, contact an electrician to replace your  
obsolete outlet.  
Accessories  
Do not use accessories with this set-top unless  
recommended by your cable service provider.  
Servicing  
Overloading  
Do not open the cover of this set-top. If you open  
the cover, your warranty will be void. Refer all  
servicing to qualified personnel only. Contact  
your cable service provider for instructions.  
Do not overload electrical outlets, extension  
cords, or integral convenience receptacles, as  
this can result in a risk of fire or electric shock.  
For equipment that requires battery power or  
other sources to operate, refer to the operating  
instructions for that equipment.  
Damage that Requires Service  
For damage that requires service, unplug this  
set-top from the electrical outlet. Refer to  
qualified personnel when any of the following  
occurs:  
Lightning and Power Surges  
Ground (earth) your cable system to provide  
some protection against voltage surges and  
built-up static charges. Plug your set-top into a  
surge protector to reduce the risk of damage  
from lightning strikes and power surges. If you  
have questions, call your cable service provider.  
• There is damage to the power cord or plug  
• Liquid enters the set-top  
• There is exposure to rain or water  
• Operation is not normal (the instructions in  
this guide describe the proper operation)  
Power Cord Protection  
Arrange all power cords so that people cannot  
walk on the cords, place objects on the cords,  
or place objects against the cords, which can  
damage the cords. Give particular attention to  
the cords at the point at which the cord con-  
nects to the plug, at electrical outlets, and at the  
places where the cords exit the set-top.  
• If you drop this equipment, or damage the  
cabinet of this set-top  
• If this set-top exhibits a distinct change in  
performance  
Upon completion of any service or repairs to  
this set-top (home terminal), the service  
technician will perform safety checks to deter-  
mine that the equipment is in proper operating  
condition.  
3
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Introduction  
Congratulations on adding the Explorer® 3250 High Definition Digital  
Interactive Set-Top (3250HD™) to your television viewing experience!  
Change the Way  
You Watch TV  
The 3250HD provides you the ability to view cable television programming  
for high-definition television (HDTV) as well as standard-definition television  
(SDTV).  
The 3250HD also provides you with the ability to experience  
video-on-demand (VOD), if offered by your cable service provider. Ask your  
cable service provider about the services available in your area.  
This guide covers both the 3250HD Standard model and the 3250HD Loop-  
Through model. The Loop-Through model contains a set of loop-through  
inputs on the back panel for additional flexibility and versatility in your HD  
television entertainment experience.  
Follow the instructions in this guide to install the 3250HD; to become  
familiar with the buttons on the front panel and the cable connections on the  
back panel; and to access your cable services. Then, watch TV and enjoy  
the features of the 3250HD!  
Safety First  
Before using the 3250HD, read the SAFETY COMPLIANCE STATEMENTS  
section of this guide.  
Keep the top of the 3250HD free of all objects and electronic devices,  
including your TV.  
The Explorer  
eClub  
The online Explorer eClub provides additional news and information about  
the 3250HD. You can access the Explorer eClub on the Internet at the  
Identify Your  
3250HD  
If the 3250HD requires  
troubleshooting in the future, your  
cable service provider may ask  
0003B4287797  
for this serial number.  
SABDQXTL  
N0006246618  
To find the serial number for your  
3250HD, look on the back for a  
label that is similar to the example  
shown here. The serial number  
begins with SA and is located in  
the lower left corner of the bar  
code.  
Use the space provided here to  
record the 3250HD serial number :  
________________________________  
4
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Front Panel Overview  
Front Panel Overview (Standard and Loop-Through Models)  
+
GUIDE  
CH  
INFO  
Ð
VOL  
+
VOL  
EXIT  
SETTINGS  
POWER  
Ð
CH  
BYPASS  
T11371  
1
2
3
4 5 6 7 8 910 11 12 13 14  
1
Message  
Indicator  
Blinks or illuminates when a message from your cable service provider is  
waiting. To access the message, press the Info key.  
2
3
4
IR Sensor  
LED Display  
Guide  
Receives the infrared signal from the remote control  
Displays the selected channel number and time of day  
Accesses on-screen services, such as the on-screen guide, video-on-demand,  
or pay-per-view  
5
6
Info  
Displays a description of the selected program. This key is available from the  
on-screen guide and while viewing a program  
Bypass*  
Illuminates when the optional bypass feature is on  
Note: The Bypass feature does not apply to the 3250HD loop-through model.  
7
8
9
USB Port*  
Exit  
Connects to external equipment, such as a keyboard  
Exits menus, the on-screen guide, and program information  
Provides access to the Settings menu  
Settings  
10 Smart Card  
Slot*  
Allows smart card access  
11 Select  
Provides access to your on-screen selection  
12 CH+, CH-  
Enables you to scroll up and down through the channels  
Enables you to increase and decrease the volume  
13 VOL+, VOL-  
14 Power  
Turns the Explorer 3250HD on and off. The light above of the Power key  
illuminates when the power is on  
* Contact your cable service provider for more information on the availability of these features.  
5
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Back Panel Overview  
3250HD Standard Model  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
AUDIO OUT  
L
0003B4287797  
SABDQXTL N0006246618  
AVIS: RISQUE DE CHOC  
Pr  
ELECTRIQUE NE PAS OUVRIR  
OPTICAL  
IR  
CABLE  
OUT  
R
Pb  
CABLE IN  
THIS DEVICE IS INTENDED TO BE ATTACHED  
TO RECEIVER THAT IS NOT USED TO  
A
AUDIO  
OUT  
RECEIVE OVER-THE-AIR BROADCAST  
SIGNALS. CONNECTION OF THIS DEVICE  
IN ANY OTHER FASHION MAY CAUSE  
HARMFUL INTERFERENCE TO RADIO  
COMMUNICATIONS AND IS IN VIOLATION  
OF THE FCC RULES, PART 15.  
Y
120 VAC  
60HZ 400W  
120 VAC  
60HZ 400W  
DIGITAL VIDEO  
AUDIO OUT  
OUT  
S-VIDEO  
OUT  
HDTV  
1394 1394  
DVI  
BYPASS  
1
2 3 4 5 6 7 8 910  
11 12  
13 14  
T10997  
1
2
1394*  
Connect to optional 1394-equipped (FireWire) devices. This connector is  
reserved for future use and may not be available on all Explorer 3250HD  
models.  
Optical Audio  
Out*  
Connect an optical cable to send a digital audio signal to a surround-sound  
receiver or other digital audio device. This connector may not be available on all  
Explorer 3250HD models.  
3
DVI*  
Connect to the DVI (Digital Visual Interface) input port on your HDTV. This port  
provides digital video signals to the HDTV.  
4
5
IR Port*  
Connect the IR Blaster cable to use with the optional VCR Commander™ service.  
S-Video Out  
Connect an S-Video cable to send an S-Video signal to your TV or VCR. This  
signal is standard definition but higher quality than other SDTV connections.  
6
YPbPr Out  
Connect the HDTV (Y, Pb, Pr) component output ports to the HDTV input on your  
HDTV. You must use these ports to provide HDTV signals to your HDTV.  
7
8
9
Digital Audio  
Out  
Connect an RCA cable to send a digital audio signal to a surround-sound  
receiver or other digital audio device.  
Video &  
Audio Out  
Connect an RCA cable to Video Out and Left/Right Audio Out to send analog video  
and audio signals to a standard TV or VCR. This signal is SDTV.  
Cable Out  
Connect a coaxial cable to Cable Out to send analog audio and video signals to  
a TV or VCR. These signals are SDTV video with mono audio. This connection  
does not apply to the 3250HD loop-through model.  
10 Audio Out  
Connect RCA cables to send analog audio signals (left and right) to a stereo  
receiver or an HDTV.  
11 Cable In  
Connect the coaxial cable that delivers the signal from your cable service provider.  
12 RF Bypass*  
Connect an optional RF Bypass module to the set-top. This module allows  
viewing one channel while recording another. This connection does not apply to  
the 3250 HD loop-through model.  
13 AC Switched  
Outlet  
Connect the AC power cord from another device, such as a TV.  
14 AC Power  
Input  
Connect the power cord to deliver power to the set-top.  
* Contact your cable service provider for more information on the availability of these features.  
6
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Back Panel Overview  
3250HD Loop-Through Model  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
VIDEO  
VIDEO  
000A73EA10A6  
OPTICAL  
AUDIO  
Y
Y
SABHWXKD  
N0018695342  
R
L
R
L
Pb  
Pr  
R
L
R
Pb  
Pr  
OUT  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
L
AUDIO DVD/D-VHS  
INPUT  
AUDIO  
HDTV  
OUTPUT  
1
2 3  
4 5 6  
7
8 910 11 12 13  
14 15  
T11350  
Connect to the DVI (Digital Visual Interface) input port on your HDTV. This port  
provides digital video signals to the HDTV.  
1
DVI*  
Connect the IR Blaster cable to use with the optional VCR Commander™ service.  
2
3
IR Port*  
S-Video Out  
Connect an S-Video cable to send an S-Video signal to your TV, VCR, or Home  
Theater. This signal is standard definition but higher quality than other SDTV  
connections.  
4
Audio &  
Video In  
Connect an RCA cable to the Video In and Left/Right Audio In to receive analog  
video and audio signals from a VCR or other analog device. This signal is SDTV.  
5 Digital Audio  
Input  
Connect an RCA cable to receive a digital audio signal from another digital audio  
device.  
6
Audio Input  
Connect an RCA cable to receive audio signals from a DVD, D-VHS, or HD video  
device.  
7
8
YPbPr In  
Connect the component Y, PB, Pr outputs from a DVD, D-VHS, or HD video device.  
Video &  
Audio Out  
Connect an RCA cable to Video Out and Left/Right Audio Out to send analog video  
and audio signals to a standard TV or VCR. This signal is SDTV.  
9
Digital Audio  
Out  
Connect an RCA cable to send a digital audio signal to a surround-sound  
receiver or other digital audio device.  
10 Audio Out  
Connect RCA cables to send analog audio signals (left and right) to a stereo  
receiver or an HDTV.  
11 YPbPr Out  
12 Cable In  
Connect the HDTV (Y, Pb, Pr) component output ports to the HDTV input on your  
HDTV. You must use these ports to provide HDTV signals to your HDTV.  
Connect the coaxial cable that delivers the signal from your cable service provider.  
Connect an optical cable to send or receive digital audio signals.  
13 Optical Audio  
In & Out*  
14 AC Switched  
Outlet  
Connect the AC power cord from another device, such as a TV.  
Connect the power cord to deliver power to the set-top.  
15 AC Power  
Input  
* Contact your cable service provider for more information on the availability of these features.  
7
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HDTV and SDTV Differences  
The widescreen HDTV is 1/3 wider than a standard TV. The widescreen  
HDTV aspect ratio is 16:9 (compared to 4:3 for SDTV).  
What Are the  
Differences  
An HDTV uses a much finer screen resolution to create the TV picture—  
1125 lines for HDTV as compared to 525 lines used in SDTV. This means  
that the screen resolution for HDTV can be up to 1920x1080 pixels,  
as compared to 720x480 pixels for SDTV.  
Between  
Widescreen HDTVs  
and Standard TVs?  
In the United States, HDTV is always broadcast with digital signals. SDTV  
is currently broadcast in both digital and analog. However, HDTV and digital  
SDTV do not use the same digital signal.  
Generally, all HDTV-ready monitors or integrated HDTV sets are capable of  
supporting an SDTV 480i or 480p signal. Not all HDTV monitors support  
both 720p and 1080i HDTV signals. For instance, some plasma screens  
only support 720p.  
You want to set up the 3250HD to provide your TV with the best picture size  
and format that your TV supports.  
What Are Screen  
Resolutions?  
Your cable service provider broadcasts programming in SDTV or HDTV  
format. The screen resolution that your TV supports determines how the  
program will look on your TV screen.  
For this reason, the 3250HD needs to know the screen resolution that is  
best for your TV. If the 3250HD is not set up to provide video in the proper  
screen resolution, you will see a black screen or a distorted picture when  
you turn on your TV.  
The 3250HD provides video in the following screen resolutions.  
480 lines, interlaced (480i)  
SDTV Screen  
Resolutions  
480 lines, progressive (480p)  
1080 lines, interlaced (1080i)  
(This is the default setting for the 3250HD.)  
HDTV Screen  
Resolutions  
720 lines, progressive (720p)  
8
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HDTV and SDTV Differences  
Connection Options  
There are several brands and models of HDTVs in the marketplace. The  
features and connectors are not the same on all brands and models.  
Therefore, you have several options for connecting your TV to entertainment  
devices. The connection option you choose depends on the type of TV you  
have and the entertainment devices you want to connect to your TV. For the  
best results, read this section to learn more about HDTV and SDTV  
connection options before you begin to connect the 3250HD to your  
entertainment devices.  
Y
Most HDTVs have YPbPr connectors for  
component video inputs.  
Pb  
Pr  
Some HDTVs have a DVI or a High-Definition  
Multimedia Interface (HDMI®) connector. The HDMI  
connector provides both a digital video and audio  
connection. The DVI connector provides only a digital  
video connection. The HDMI connector provides the  
optimal connection to an HDTV with either an HDMI  
input or a DVI input.  
DVI  
Note: If your HDTV has an HDMI connector, you will  
need a DVI-to-HDMI adaptor, and you will also need  
a separate audio connection.  
R
G
B
Some HDTVs have only RGB connectors. If you have  
one of these HDTVs, you may need an RGB adaptor.  
Check with your cable service provider for information  
about receiving or purchasing an RGB adaptor.  
Some HDTVs have a 1394 port, also called a FireWire.  
The 1394 port is a high-speed connector for electronic  
devices such as digital VCRs. (Not available on the  
Loop-Through model.)  
1394  
The S-Video Out and Video Out connectors on  
entertainment devices deliver standard definition  
video signals to the TV.  
VIDEO  
OUT  
S-VIDEO  
Out  
If you connect the 3250HD to your SDTV using only the  
coaxial cable at the CABLE OUT connector, your SDTV  
will not receive stereo sound from the 3250HD.  
Note: S-Video, Video, and coaxial cables deliver SDTV  
programming. They do not deliver HDTV programming.  
(Not available on the Loop-Through model.)  
Cable  
Out  
9
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Connecting Entertainment Devices  
How Do I Connect  
the 3250HD to My  
TV and Other  
Entertainment  
Devices?  
When you are ready to connect the 3250HD and to choose the screen type  
for your TV, follow these instructions.  
1. Connect the 3250HD to your HDTV, VCR, and other entertainment  
devices as shown in the diagrams on the following pages. (The  
diagrams in this guide do not cover every possible combination.)  
2. Connect the 3250HD to the coaxial cable coming from the wall.  
3. Plug the 3250HD and the TV into an AC power source.  
4. Do not turn on the 3250HD or HDTV yet.  
5. Wait until you see one of the following displays on the front of the  
3250HD:  
• Current time  
• Four dashes (- - - -)  
Important: It may take several minutes for the 3250HD to receive the  
latest software, programming, and service information. When the front  
panel displays the time or four dashes, the update is complete.  
6. After the update is complete, turn on the TV. Do not turn the 3250HD on  
yet. Go to How Do I Choose the Screen Type, next in these instructions.  
After you connect your entertainment devices, follow these instructions  
before you begin watching TV.  
How Do I Choose  
the Screen Type?  
1. Turn on the TV.  
2. Turn off the 3250HD.  
3. Press the INFO and GUIDE buttons on the front of the 3250HD  
simultaneously.  
4. Press  
on the remote control to start the HDTV Setup Wizard.  
5. Follow the easy instructions on the TV screen.  
6. Press the CBL and POWER keys on the remote control, and then the  
3250HD will turn on.  
10  
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Connecting Entertainment Devices  
To set up stereo sound, choose one of the following options:  
How Do I Set Up  
Stereo Sound?  
Connect stereo audio cables from the AUDIO OUT LEFT and RIGHT  
connectors on the 3250HD to the AUDIO IN LEFT and RIGHT  
connectors on your HDTV.  
Connect an RCA cable from the DIGITAL AUDIO OUT on the 3250HD to  
the DIGITAL AUDIO IN on your HDTV (if equipped) or stereo receiver.  
Note: You can set your audio format to be either 2-channel PCM or  
Dolby® Digital based on your audio configuration settings.  
Connect an optical digital audio cable from the OPTICAL AUDIO OUT on  
the 3250HD to the OPTICAL AUDIO IN on your HDTV (if equipped) or  
stereo receiver.  
Note: You can set your audio format to be either 2-channel PCM or  
Dolby Digital based on your audio configuration settings.  
The diagrams on the following pages show examples of common ways to  
connect the 3250HD to your HDTV, VCR, DVD, D-VHS, and home theater  
receiver.  
Connection  
Diagrams  
However, these diagrams do not show every possible combination of  
devices. Please consult the user’s guides that came with your other  
electronic devices for further information.  
Cables  
Some of the cables shown in the diagrams may not be included with the  
3250HD. If you need additional cables, you can purchase them from your  
local electronics store.  
Additional HD video, SD video, and audio devices may be connected to the  
inputs of the 3250HD models with loop-through connectivity. When the  
3250HD is in the power off state (the green power indicator on the front  
panel is off), the input connectors are directly connected to the output  
connectors.  
Loop-through  
Connectivity  
Example: When you want to view a DVD player connected to the input  
connectors of the 3250HD, power off the 3250HD. The DVD player output  
signals will now flow through the 3250HD outputs.  
11  
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Connecting the 3250HD  
Typical HDTV Using YPbPr Cables and Audio Cables  
Explorer 3250HD  
WARNING:  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
AUDIO OUT  
0003B4287797  
L
AVIS: RISQUE DE CHOC  
SABDQXTL  
N0006246618  
OPTICAL  
Pr  
ELECTRIQUE NE PAS OUVRIR  
Electric shock  
LE  
R
Pb  
CABLE IN  
THIS DEVICE IS INTENDED TO BE ATTACHED  
TO RECEIVER THAT IS NOT USED TO  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
A
AUDIO  
OUT  
RECEIVE OVER-THE-AIR BROADCAST  
IGNALS. CONNECTION OF THIS DEVICE  
IN ANY OTHER FASHION MAY CAUSE  
HARMFUL INTERFERENCE TO RADIO  
COMMUNICATIONS AND IS IN VIOLATION  
F THE FCC RULES, PART 15.  
Y
120 VAC  
120 VAC  
60HZ 400W  
60HZ 400W  
DIGITAL VIDEO  
AUDIO OUT  
OUT  
S-VIDEO  
OUT  
HDTV  
1394 1394  
DVI  
BYPASS  
Cable Input  
Back of  
HDTV  
AUDIO  
DVI/HDCP  
IN  
CENTER  
CHANNEL IN  
ON  
OFF  
AUDIO IN  
DVI/HDCP  
TIP:  
S-VIDEO  
VIDEO  
R
L
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
ANT (75½)  
VIDEO  
Y
P
P
Y
P
P
ANT-1  
OUT  
L/  
MONO  
B
R
L
AUDIO  
R
B
R
L
L/  
MONO  
AUDIO  
R
AUDIO  
R
R
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
IN  
IN  
T11370  
Power Surge  
Protection:  
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
devices.  
12  
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Connecting the 3250HD  
HDTV and Stereo VCR  
WARNING:  
Explorer 3250HD  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
AUDIO OUT  
L
0003B4287797  
SABDQXTL N0006246618  
AVIS: RISQUE DE CHOC  
Pr  
ELECTRIQUE NE PAS OUVRIR  
Electric shock  
OPTICAL  
LE  
R
Pb  
CABLE IN  
THIS DEVICE IS INTENDED TO BE ATTACHED  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
TO  
A
RECEIVER THAT IS NOT USED TO  
AUDIO  
OUT  
RECEIVE OVER-THE-AIR BROADCAST  
IGNALS. CONNECTION OF THIS DEVICE  
IN ANY OTHER FASHION MAY CAUSE  
HARMFUL INTERFERENCE TO RADIO  
COMMUNICATIONS AND IS IN VIOLATION  
F THE FCC RULES, PART 15.  
Y
120 VAC  
60HZ 400W  
120 VAC  
60HZ 400W  
DIGITAL VIDEO  
AUDIO OUT  
OUT  
S-VIDEO  
OUT  
HDTV  
1394 1394  
DVI  
BYPASS  
Cable Input  
Back  
of  
HDTV  
AUDIO  
CENTER  
CHANNEL IN  
DVI/HDCP  
IN  
ON  
OFF  
AUDIO IN  
DVI/HDCP  
S-VIDEO  
VIDEO  
R
L
TIP:  
ANT (75½)  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
VIDEO  
L/  
Y
Y
ANT-1  
OUT  
PB  
PR  
L
AUDIO  
R
PB  
PR  
L
MONO  
L/  
MONO  
O  
R
AUDIO  
R
R
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
IN  
IN  
RF IN  
Back  
of  
L
R
L
R
Stereo  
VCR  
RF OUT  
VIDEO  
IN  
AUDIO  
IN  
VIDEO  
OUT  
AUDIO  
OUT  
Power Surge  
Protection:  
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
T11000  
devices.  
13  
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Connecting the 3250HD  
Home Theater Receiver, a Typical HDTV, and a Stereo VCR  
Explorer 3250HD  
CAUTION  
WARNING:  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
AUDIO OUT  
0003B4287797  
SABDQXTL N0006246618  
OPTICAL  
L
AVIS: RISQUE DE CHOC  
Pr  
ELECTRIQUE NE PAS OUVRIR  
Electric shock  
C
OU
R
Pb  
CABLE IN  
THIS DEVICE IS INTENDED TO BE ATTACHED  
TO RECEIVER THAT IS NOT USED TO  
A
AUDIO  
OUT  
RECEIVE OVER-THE-AIR BROADCAST  
SIGNALS. CONNECTION OF THIS DEVICE  
IN ANY OTHER FASHION MAY CAUSE  
HARMFUL INTERFERENCE TO RADIO  
OMMUNICATIONS AND IS IN VIOLATION  
OF THE FCC RULES, PART 15.  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
Y
120 VAC  
120 VAC  
60HZ 400W  
60HZ 400W  
DIGITAL VIDEO  
AUDIO OUT  
OUT  
S-VIDEO  
OUT  
HDTV  
1394 1394  
DVI  
BYPASS  
Cable Input  
Please refer to  
your Home  
Theater  
Back of Home  
Theater Receiver  
DIGITAL  
AUDIO  
Receiver's  
owner's  
manual for  
more detailed  
information.  
TV/CABLE  
DVD  
VIDEO 1  
COMNENT VIDEO  
MONITOR  
Y
P
P
Y
P
P
Y
P
P
1
S-VIDEO  
VIDEO  
-VIDEO  
VIDEO  
S-VIDEO S-VIDEO  
VIDEO VIDEO  
B
R
B
R
B
R
S-VIDEO  
OUT  
2
3
L
AUDIO  
R
L
AUDIO  
R
L
L
1
2
VIDEO OUT  
IN  
UT  
4
AUDIO  
AUDIO  
TIP:  
R
IN  
OUT  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
Back of HDTV  
AUDIO  
DVI/HDCP  
IN  
CENTER  
CHANNEL IN  
ON  
OFF  
RF IN  
AUDIO IN  
DVI/HDCP  
L
R
L
R
S-VIDEO  
VIDEO  
R
L
RF OUT  
VIDEO  
IN  
AUDIO  
IN  
VIDEO  
OUT  
AUDIO  
OUT  
ANT (75½)  
VIDEO  
L/  
Y
P
P
Y
P
P
ANT-1  
OUT  
Power Surge  
Protection:  
Back of  
Stereo VCR  
B
R
L
IO  
R
B
R
L
MONO  
L/  
MONO  
AUDIO  
R
AUDIO  
R
R
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
IN  
IN  
T11364  
devices.  
14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD  
Typical HDTV and DVD Player  
Explorer 3250HD  
CAUTION  
WARNING:  
Electric shock  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
AUDIO OUT  
L
0003B4287797  
SABDQXTL  
N0006246618  
OPTICAL  
AVIS: RISQUE DE CHOC  
Pr  
ELECTRIQUE NE PAS OUVRIR  
LE  
R
Pb  
CABLE IN  
THIS DEVICE IS INTENDED TO BE ATTACHED  
TO RECEIVER THAT IS NOT USED TO  
A
AUDIO  
OUT  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
RECEIVE OVER-THE-AIR BROADCAST  
IGNALS. CONNECTION OF THIS DEVICE  
IN ANY OTHER FASHION MAY CAUSE  
HARMFUL INTERFERENCE TO RADIO  
COMMUNICATIONS AND IS IN VIOLATION  
OF THE FCC RULES, PART 15.  
Y
120 VAC  
60HZ 400W  
120 VAC  
60HZ 400W  
DIGITAL VIDEO  
AUDIO OUT  
OUT  
S-VIDEO  
OUT  
HDTV  
1394 1394  
DVI  
BYPASS  
Cable Input  
Back of DVD Player  
DIGITAL  
AUDIO OUT  
VIDEO  
OUT  
OUT  
COAXIAL  
R
L
Y
PB  
PB  
OPTICAL  
DIGITAL OUT  
S-VIDEO  
OUT  
COMPONENT VIDEO OUT/  
PROGRESSIVE SCAN  
TIP:  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
AUDIO  
CENTER  
DVI/HDCP  
IN  
CHANNEL IN  
ON  
OFF  
AUDIO IN  
DVI/HDCP  
S-VIDEO  
R
L
ANT (75½)  
VIDEO  
Y
P
P
Y
P
P
VIDEO  
ANT-1  
OUT  
L/  
MONO  
B
R
L
B
R
L
L/  
MONO  
AUDIO  
R
AUDIO  
R
AUDIO  
R
R
Power Surge  
Protection:  
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
IN  
IN  
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
Back of HDTV  
T11390  
devices.  
15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD Loop-Through Model  
Typical HDTV Using YPbPr Cables and Audio Cables  
Explorer 3250HD  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
VIDEO  
VIDEO  
WARNING:  
Electric shock  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
000A73EA10A6  
OPTICAL  
AUDIO  
Y
Y
SABHWXKD  
N0018695342  
R
L
R
L
Pb  
R
L
R
Pb  
Pr  
UT  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
L
AUDIO DVD/S  
INPU
AUDIO  
HDTV  
OUTPUT  
Cable  
Input  
Back of  
HDTV  
AUDIO  
CENTER  
CHANNEL IN  
DVI/HDCP  
IN  
ON  
OFF  
AUDIO IN  
DVI/HDCP  
TIP:  
S-VIDEO  
VIDEO  
R
L
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
ANT (75½)  
VIDEO  
Y
Y
ANT-1  
OUT  
L/  
MONO  
PB  
L
PB  
PR  
L
L/  
MONO  
AUDIO  
R
AUDIO  
R
AUDIO  
R
R
PR  
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
IN  
IN  
T11341  
Power Surge  
Protection:  
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
devices.  
16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD Loop-Through Model  
Typical HDTV Using a DVI Cable and Audio Cables  
Explorer 3250HD  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
WARNING:  
Electric shock  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
VIDEO  
VIDEO  
000A73EA10A6  
OPTICAL  
AUDIO  
Y
Y
SABHWXKD  
N0018695342  
R
L
R
L
Pb  
Pr  
R
L
R
Pb  
UT  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
L
AUDIO DVD/D-VHS  
INPUT  
AUDIO  
TV  
OUTPUT  
Cable  
Input  
Back of  
HDTV  
AUDIO  
CENTER  
CHANNEL IN  
DVI/HDCP  
IN  
ON  
OFF  
TIP:  
AUDIO IN  
DVI/HDCP  
S-VIDEO  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
R
L
ANT (75½)  
VIDEO  
L/  
Y
Y
P
P
VIDEO  
ANT-1  
OUT  
P
B
R
L
AUDIO  
R
B
R
L
MONO  
L/  
MONO  
AUDIO  
R
AUDIO  
R
R
P
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
HD 2  
ANT-2  
IN  
OUT  
IN  
T11342  
Power Surge  
Protection:  
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
devices.  
17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD Loop-Through Model  
Typical HDTV and a Stereo VCR  
Explorer 3250HD  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
VIDEO  
VIDEO  
WARNING:  
Electric shock  
000A73EA10A6  
OPTICAL  
AUDIO  
Y
Y
SABHWXKD  
N0018695342  
R
L
R
L
Pb  
R
L
R
Pb  
Pr  
UT  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
L
AUDIO DVD
INPU
AUDIO  
HDTV  
OUTPUT  
Cable  
Input  
Back of  
HDTV  
AUDIO  
CENTER  
CHANNEL IN  
DVI/HDCP  
IN  
ON  
OFF  
AUDIO IN  
DVI/HDCP  
TIP:  
S-VIDEO  
VIDEO  
R
L
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
ANT (75½)  
VIDEO  
Y
Y
P
P
ANT-1  
OUT  
L/  
MONO  
P
B
R
L
AUDIO  
R
B
R
L
MONO  
AU
R
AUDIO  
R
R
P
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
IN  
IN  
Power Surge  
Protection:  
RF IN  
L
R
L
R
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
RF OUT  
Back of  
Stereo  
VCR  
VIDEO  
IN  
AUDIO  
IN  
VIDEO  
OUT  
AUDIO  
OUT  
T11343  
devices.  
18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD Loop-Through Model  
Home Theater Receiver, a Typical HDTV, and a Stereo VCR  
Explorer 3250HD  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
VIDEO  
VIDEO  
WARNING:  
Electric shock  
000A73EA10A6  
OPTICAL  
AUDIO  
Y
SABHWXKD  
N0018695342  
R
L
R
L
Pb  
Pr  
R
L
R
Pb  
Pr  
T  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
L
AUDIO DVD/D-VHS  
INPUT  
AUDIO  
HDTV  
OUTPUT  
Cable  
Input  
DIGITAL  
AUDIO  
Back of Home  
TV/CABLE  
DVD  
VIDEO 1  
COMPONENT VIDEO  
MONITOR  
Y
P
P
Y
P
P
Y
P
P
Theater Receiver  
1
S-VIDEO  
VIDEO  
-VIDEO  
VIDEO  
S-VIDEO S-VIEO  
B
R
R
B
R
S-VIDEO  
OUT  
2
3
VIDEO  
VIDEO  
Please refer to  
your Home  
Theater  
Receiver's  
owner's  
L
AUDIO  
R
L
AUDIO  
R
L
L
1
2
VIDEO OU
IN  
UT  
4
TIP:  
AUDIO  
AUDIO  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
R
R
IN  
OUT  
manual for  
more detailed  
information.  
AUDIO  
DVI/HDCP  
IN  
CENTER  
CHANNEL IN  
ON  
OFF  
RF IN  
AUDIO IN  
DVI/HDCP  
L
R
L
R
S-VIDEO  
VIDEO  
R
L
RF OUT  
VIDEO  
IN  
AUDIO  
IN  
VIDEO  
OUT  
AUDIO  
OUT  
Power Surge  
Protection:  
ANT (75½)  
VIDEO  
L/  
Y
Y
P
P
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
Back of  
Stereo VCR  
ANT-1  
OUT  
P
B
R
L
IO  
R
B
R
L
MONO  
L/  
MONO  
AUDIO  
R
AUDIO  
R
R
P
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
Back of  
HDTV  
IN  
IN  
T11344  
devices.  
19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD Loop-Through Model  
Typical HDTV and a DVD Player (Option 1)  
Explorer 3250HD  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
VIDEO  
VIDEO  
000A73EA10A6  
WARNING:  
Electric shock  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
OPTICAL  
AUDIO  
Y
Y
SABHWXKD  
N0018695342  
R
L
R
L
Pb  
R
L
R
Pb  
Pr  
UT  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
L
AUDIO DVD/
INPU
AUDIO  
HDTV  
OUTPUT  
Cable  
Input  
Back of DVD Player  
DIGITAL  
AUDIO OUT  
VIDEO  
OUT  
OUT  
COAXIAL  
R
L
TIP:  
Y
P
b
Pr  
OPTICAL  
DIGITAL OUT  
S-VIDEO  
OUT  
COMPONENT VIDEO OUT/  
PROGRESSIVE SCAN  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
Back of HDTV  
AUDIO  
DVI/HDCP  
IN  
CENTER  
CHANNEL IN  
ON  
OFF  
AUDIO IN  
DVI/HDCP  
S-VIDEO  
VIDEO  
R
L
ANT (75½)  
VIDEO  
L/  
Y
P
P
Y
P
P
ANT-1  
OUT  
B
R
L
AUDIO  
R
B
R
L
MONO  
L/  
MONO  
Power Surge  
Protection:  
AUDIO  
R
AUDIO  
R
R
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
HD 2  
ANT-2  
IN  
OUT  
IN  
T11345  
devices.  
20  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD Loop-Through Model  
Typical HDTV and a DVD Player (Option 2)  
Explorer 3250HD  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
VIDEO  
VIDEO  
000A73EA10A6  
WARNING:  
Electric shock  
OPTICAL  
AUDIO  
Y
Y
SABHWXKD  
N0018695342  
R
L
R
L
Pb  
Pr  
L
R
Pb  
Pr  
UT  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
L
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
AUDIO  
DVD/D-
AUDIO  
HDTV  
INPUT  
OUTPUT  
Cable  
Input  
Back of  
DVD Player  
DIGITAL  
AUDIO OUT  
VIDEO  
OUT  
OUT  
COAXIAL  
R
L
Y
Pb  
Pr  
OPTICAL  
DIGITAL OUT  
S-VIDEO  
OUT  
COMENT VIOUT/  
PROSSIVE AN  
TIP:  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
AUDIO  
DVI/HDCP  
IN  
CENTER  
CHANNEL IN  
ON  
OFF  
AUDIO IN  
DVI/HDCP  
S-VIDEO  
VIDEO  
R
L
ANT (75½)  
VIDO  
Y
Y
ANT-1  
OUT  
L/  
PB  
PR  
L
AUDIO  
R
PB  
PR  
L
ONO  
L/  
MONO  
AUDIO  
R
AUDIO  
R
R
Power Surge  
Protection:  
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
Back of  
HDTV  
IN  
IN  
T11347  
devices.  
21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD Loop-Through Model  
D-VHS Player (Optional)  
Explorer 3250HD  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
WARNING:  
Electric shock  
VIDEO  
VIDEO  
000A73EA10A6  
OPTICAL  
AUDIO  
Y
Y
SABHWXKD  
N0018695342  
R
R
L
Pb  
Pr  
R
Pb  
P
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
UT  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
L
AUDIO DVD/D-VHS  
INPUT  
AUDIO  
HDTV  
OUTPUT  
Cable  
Input  
AUDIO OUT  
VIDEO  
OUT  
S-VIDEO  
IN  
R
L
Y
Pb  
Pr  
S-VIDEO  
OUT  
TIP:  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
Back  
of D-VHS  
Player  
AUDIO  
DVI/HDCP  
IN  
CENTER  
CHANNEL IN  
ON  
OFF  
AUDIO IN  
DVI/HDCP  
S-VIDEO  
VIDEO  
R
L
ANT (75½)  
VIDEO  
L/  
Y
Y
P
P
ANT-1  
OUT  
P
B
R
L
B
R
L
MONO  
L/  
MONO  
Power Surge  
Protection:  
AUDIO  
R
AUDIO  
R
AUDIO  
R
R
P
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
HD 2  
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
ANT-2  
Back of  
HDTV  
IN  
OUT  
IN  
T11348  
devices.  
22  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting the 3250HD Loop-Through Model  
Home Theater Receiver, A Typical HDTV, and a DVD Player  
Using Digital Optical Audio Connections (Optional)  
Explorer 3250HD  
Cable Input  
DIGITAL AUDIO  
DIGITAL AUDIO  
IN  
VIDEO  
VIDEO  
WARNING:  
Electric shock  
000A73EA10A6  
OPTICAL  
AUDIO  
Y
Y
SABHWXKD  
N0018695342  
R
L
L
Pb  
R
R
Pb  
Pr  
OUT  
hazard! Unplug all  
electronic devices  
before connecting  
or disconnecting  
any device cables  
to the 3250HD.  
120 VAC  
60HZ 400W  
120 VAC  
60HZ 40W  
Pr  
UDIO DVD/D-VHS  
IUT  
L
AUDIO  
HDTV  
UTPUT  
DIGITAL  
AUDIO  
TV/CABLE  
DVD  
VIDEO 1  
COMPONENT VIDEO  
MONITOR  
Y
P
P
Y
P
P
Y
P
P
1
Please refer to  
your Home  
Theater  
S-VIDEO  
VIDEO  
S-VIDEO  
VIDEO  
S-VIDEO S-VIDEO  
VIDEO VIDEO  
B
R
B
R
B
R
S-VIDEO  
OUT  
2
3
Receiver's  
owner's  
manual for  
more detailed  
information.  
L
AUDIO  
R
L
AUDIO  
R
L
L
TIP:  
1
2
VIDEO OUT  
IN  
OUT  
4
AUDIO  
AUDIO  
Before you connect or  
turn on the 3250HD,  
read the HDTV and  
SDTV Differences  
section of this guide.  
R
R
IN  
OUT  
Back of Home  
Theater Receiver  
AUDIO  
DVI/HDCP  
IN  
CENTER  
CHANNEL IN  
DIGITAL  
UDIO OU
VIDO  
OT  
OUT  
ON  
OFF  
COAXIAL  
AUDIO IN  
DVI/HDCP  
S-VIDEO  
R
L
Power Surge  
Protection:  
ANT (75½)  
Y
P
b
Pr  
OPTICAL  
DIGITAL OUT  
S-VIDEO  
OUT  
COMPONENT VIDEO OUT/  
PROGRESSIVE SCAN  
VIDE
L/  
Y
Y
P
P
VIDEO  
It is recommended  
that you connect a  
surge protector to  
your cable equipment  
and electronic  
ANT-1  
OUT  
P
B
R
L
B
R
L
Back of DVD Player  
MO  
L/  
MONO  
AUDIO  
R
AUDIO  
R
AUDIO  
R
R
P
VIDEO-1 VIDEO-2 HD 1  
IN  
AUDIO  
OUT  
HD 2  
ANT-2  
Back of  
HDTV  
IN  
IN  
devices.  
T11363  
23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Watching TV  
You can access cable services and programs by pressing the following  
keys on the remote control:  
How Do I Access  
Cable Services and  
Programs?  
Guide—The on-screen guide displays schedules of TV programs and  
other services available from your cable service provider, such as video-  
on-demand and pay-per-view programs.  
Arrows—Highlight a program in the schedule.  
Info—Display a specific program description (either from the on-screen  
guide or while viewing a program).  
Select—View a specific program in the guide.  
Avoid Screen  
Burn-In!  
Images such as letterbox bars or side bars, bright closed-captioning  
backgrounds, station logos, or any other stationary images may cause the  
picture tubes in your HDTV to age unevenly and cause damage to your  
HDTV. Refer to the user’s guide that came with your HDTV for more  
information about screen burn-in.  
WARNING:  
To avoid screen  
burn-in, do not  
display the same  
fixed images on  
your HDTV screen  
for extended periods  
of time.  
The 3250HD supports both the 16:9 and 4:3 aspect ratio, accommodating  
both wide-screen and standard HDTVs. Because some channels are high  
definition and some are not, you can quickly and easily change the picture  
size to Normal, Stretch, or Zoom while watching TV.  
Change the Settings  
While Watching TV  
To change the picture size, press the # key on you remote control to toggle  
from one format to another (for example, Stretch), until you see the setting  
you want.  
If your remote control does not have a # key, follow these steps to change  
the picture size.  
1. Press Settings on the remote control.  
2. Press  
or  
to scroll to Picture Format (1080i, 480i, etc.) or Picture  
Size (Normal, Stretch, Zoom) .  
3. Press  
or  
to view the format or size options.  
4. Press Select to accept the setting.  
5. Press Exit to exit the Quick Settings menu.  
24  
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Watching TV  
Change Picture  
Modes on the TV  
The 3250HD offers various picture formats, allowing it to output the picture in  
either fixed, pass-through, upconvert-1, upconvert-2, or auto DVI modes. The  
pass-through mode is the most convenient option as the 3250 HD attempts  
to output the same picture format as the incoming signal.  
Follow these steps to set your picture format to pass-through mode.  
1. Press Settings on the remote control.  
2. Press  
3. Press  
or  
or  
to scroll to Set: Picture Format .  
to select Pass-Through.  
4. Press  
to accept the setting.  
Note: The 3250HD can only output to formats selected in the HDTV Setup  
Wizard. For more details, contact your cable service provider.  
If the 3250HD does not perform as expected, the following tips may help. If  
you need further assistance, contact your cable service provider.  
Performance Tips  
No Picture  
Verify that the power to your TV is turned on.  
If plugged into a wall switch, verify the switch is in the ON position.  
Verify that all cables are properly connected.  
If your entertainment system includes a VCR and/or stereo, verify that  
you have properly connected them to the 3250HD.  
Verify that the TV is set to the proper input.  
Verify that your TV is connected to the proper TV input port.  
Verify that the 3250HD is set to the proper screen type and resolution.  
No Color  
Verify that the current TV program is broadcast in color.  
Adjust the TV color controls.  
No Sound  
If your entertainment system includes a VCR or stereo, verify that you  
have properly connected them to the 3250HD.  
Verify that the volume is turned up.  
Verify that the mute function is not engaged.  
You will see a message on the TV screen that indicates the 3250HD is  
automatically updating its software. Wait for the time to display on the front  
panel of your 3250HD before continuing with the installation process. When  
the front panel displays the time, the update is complete.  
Automatic Software  
Updates  
25  
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Frequently Asked Questions About HDTV  
Are Local TV  
Stations  
Broadcasting in  
HDTV?  
Many local TV stations are transmitting digital signals. However,  
transmitting a digital signal does not mean transmitting an HDTV signal.  
Some stations are using the new bandwidth to broadcast several  
standard-definition channels. Most stations however, once they begin  
broadcasting in digital, are offering HD content from their parent network  
(for example, CBS, ABC, NBC, Fox, WB, UPN, PBS).  
The aspect ratios differ because the television industry manufactures both  
standard and wide-screen HDTVs to appeal to consumer viewing  
preferences.  
Why Are Some  
HDTVs 4:3 Aspect  
Ratio and Others  
16:9?  
On wide-screen HDTVs, the programming is displayed on the full  
screen.  
On standard HDTVs, the programming is displayed in letterbox format  
in the middle of the screen. (There are bars surrounding the picture.)  
A wide-screen HDTV is one-third  
wider than a standard-screen  
HDTV. The screen is 16 units  
wide for every 9 units tall.  
A standard-screen HDTV has  
a 4:3 aspect ratio. The screen  
is 4 units wide for every 3 units  
tall.  
——— 4 ———  
———— 16 ————  
3
9
Aspect Ratio: 4:3  
Aspect Ratio: 16:9  
Screen Resolution:  
480p or 480i  
Screen Resolution:  
720p or 1080i  
fills the screen  
fills the screen  
26  
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Compliance Information  
United States FCC  
Compliance  
This equipment has been tested and found to comply with the applicable  
limits of Part 15 of the FCC Rules. These limits are designed to provide  
reasonable protection against harmful interference in a residential  
installation. This equipment generates, uses, and can radiate radio  
frequency energy and, if not installed and used in accordance with the  
instructions, may cause harmful interference to radio or TV reception,  
which can be determined by turning the equipment off and on. The user is  
encouraged to try to correct the interference by one or more of the following  
measures:  
Increase the separation between the equipment and receiver  
Connect the equipment into an outlet on a circuit different from that to  
which the receiver is connected  
Consult your cable company or an experienced radio/TV technician for  
help  
Any changes or modifications not expressly approved by Scientific-Atlanta  
could void the user’s authority to operate the equipment.  
Important: The information shown in the FCC Declaration of Conformity  
paragraph below is a requirement of the FCC and is intended to supply  
you with information regarding the FCC approval of this device. The phone  
numbers listed are for FCC-related questions only and not intended for  
questions regarding the connection or operation for this device. Please  
contact your cable service provider for any questions you may have  
regarding the operation or installation of this device.  
FCC Declaration of  
Conformity  
This device complies with Part 15 of the FCC Rules. Operation is subject  
to the following two conditions:  
1) this device may not cause harmful interference, and  
2) this device must accept any interference received, including interference  
that may cause undesired operation.  
EXPLORER® 3250HD Digital Interactive Set-top:  
Model 3250HD  
Manufactured by: Scientific-Atlanta, Inc.  
5030 Sugarloaf Parkway  
Lawrenceville, Georgia 30044, USA  
Telephone 770-236-1077  
27  
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Compliance Information  
This Class B digital apparatus complies with Canadian ICES-003.  
Canada EMI  
Regulation  
Cet appareil numérique de la classe B est conforme a la norme NMB-003  
du Canada.  
Scientific-Atlanta, Inc. owns copyrights to the software included in your set-  
top and furnishes the software to your cable service provider under a  
license agreement. You may only use or copy this software in accordance  
with the terms of your cable service provider.  
Software and  
Firmware Use  
Scientific-Atlanta, Inc. owns copyrights to the firmware in this equipment.  
You may only use the firmware in the equipment in which it is provided. Any  
reproduction or distribution of this firmware, or any portion of it, without the  
express written consent of Scientific-Atlanta, Inc. is prohibited.  
Explorer, Scientific-Atlanta, and the Scientific-Atlanta logo are registered  
trademarks of Scientific-Atlanta, Inc. VCR Commander and 3250HD are  
trademarks of Scientific-Atlanta, Inc.  
Trademarks  
Disclaimer  
Scientific-Atlanta, Inc. assumes no responsibility for errors or omissions  
that may appear in this guide. Scientific-Atlanta reserves the right to change  
this guide at any time without notice.  
© 2004 Scientific-Atlanta, Inc. All rights reserved.  
Explorer, Scientific-Atlanta, and the Scientific-Atlanta logo are registered trademarks of Scientific-Atlanta, Inc.  
3250HD and VCR Commander are trademarks of Scientific-Atlanta, Inc.  
Dolby is a registered trademark of Dolby Laboratories  
HDMI, the HDMI logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of  
HDMI Licensing LLC  
All other trademarks shown are property of their respective owners.  
Product and service availability subject to change without notice.  
Scientific-Atlanta, Inc., 5030 Sugarloaf Parkway, Box 465447, Lawrenceville, GA 30042  
September 2004 Printed in USA.  
Part Number 752313 Rev E  
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