Extron electronic Stereo Receiver DVS 204 User Manual
DVS 204  
Digital Video Scaler series  
DVS 204, DVS 204 D, DVS 204 12V, DVS 204 D 12V  
68-605-01 Rev. C  
01 05  
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Quick Start — DVS 204  
Installation  
Step 1  
Step 5  
Plug the DVS 204, and input and output devices  
into a grounded AC source, and turn on the input  
and output devices.  
Refer to the application examples at the end of this  
page. Turn off power to the scaler and input and  
output devices, and remove power cords from  
them.  
Step 6  
Use the LCD menu screens or RS-232  
programming to configure the scaler. See chapter  
two for installation and operation procedures, and  
see chapter three for programming information.  
Step 2  
Install the four rubber feet on the bottom of the  
DVS 204 scaler, or mount the scaler in a rack.  
Step 3  
Attach input devices to the scaler.  
Rear panel video inputs  
Input 1: Composite video  
Application examples  
VIDEO  
1
DVS 204 D  
INPUTS  
RGB  
OUTPUTS  
REMOTE  
100-240V  
0.3A  
VIDEO  
SDI  
R
/R-Y  
G
B
/B-Y  
B-Y  
/C  
/Y  
Input 2: Composite/S-video/Component  
PASS THRU  
RGBcvS  
-
1
S-VIDEO  
3
RGB/R-Y,Y,B-Y  
Y
/VID  
R-Y  
H
V
S
S-video (Y/C)  
Component Video (R-Y, Y, B-Y)  
Composite Video  
2
4
50/60 Hz  
RS-232 Control  
B-Y  
/C  
B-Y  
/C  
B-Y  
/C  
Y
/VID  
Y
/VID  
Y
/VID  
R-Y  
R-Y  
R-Y  
2
2
2
LCD Projector  
S-VIDEO  
3
DVD Player  
VCR  
Input 3: S-video  
RGB  
PASS - THRU/  
RGBS/RGBcvS  
Input 4: RGB pass-through/RGBS/  
RGBcS  
4
Laptop Computer Plasma Display  
Document Camera  
SDI input  
SDI  
Attach an SDI source to this BNC (204 D  
model only).  
DVS 204 D 12V  
Step 4  
INPUTS  
RGB  
OUTPUTS  
REMOTE  
VIDEO  
SDI  
R
/R-Y  
G
B
/B-Y  
B-Y  
/C  
/Y  
1
PASS  
-
THRU  
POWER  
S-VIDEO  
12V 1.5A DC  
RGB/R-Y,Y,B-Y  
RGBS/RGBcvS  
Y
/VID  
Attach output devices to the scaler.  
R-Y  
H
V
S
2
3
4
RS-232 Control  
Rear panel video outputs  
Output BNC connectors  
LCD Projector  
RGBHV  
RGBS  
DVD Player  
VCR  
OUTPUTS  
OUTPUTS  
R
/R-Y  
G
B
/B-Y  
R
/R-Y  
G
B
/B-Y  
/Y  
V
/Y  
H
S
H
V
S
Power Supply  
Laptop Computer  
Monitor  
OUTPUTS  
G
OUTPUTS  
R
/R-Y  
B
/B-Y  
R
/R-Y  
G
B
/B-Y  
Document Camera  
/Y  
/Y  
H
V
S
H
V
S
RGsB  
Component Video (R-Y,Y, B-Y)  
RGB/R-Y,Y,B-Y  
Output 15-pin HD connector  
You can connect both outputs simultaneously  
to two different displays. The sync format is  
the same for both outputs.  
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Quick Start — DVS 204, cont’d  
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Table of Contents  
Chapter 1 • Introduction ...................................................................................................... 1-1  
About this Manual ............................................................................................................ 1-2  
About the DVS 204 ........................................................................................................... 1-2  
What is the DVS 204? ....................................................................................................... 1-2  
Controlling the DVS 204 digital video scaler ................................................................ 1-2  
Features and Options ...................................................................................................... 1-2  
Features.............................................................................................................................. 1-2  
Options and accessories ................................................................................................... 1-3  
Chapter 2 • Installation and Operation...................................................................... 2-1  
Mounting the Scaler ........................................................................................................ 2-2  
Tabletop/desktop placement ........................................................................................... 2-2  
Rack mounting.................................................................................................................. 2-2  
Application diagram ........................................................................................................ 2-3  
Rear Panel Features .......................................................................................................... 2-4  
Front Panel Features ........................................................................................................ 2-7  
Input selection buttons .................................................................................................... 2-7  
Picture adjustment buttons ............................................................................................. 2-7  
Menu button ..................................................................................................................... 2-8  
Next button ....................................................................................................................... 2-8  
LCD menu display and controls ...................................................................................... 2-8  
Optimizing the System for a DVD ........................................................................... 2-8  
Setting up a DVD source .................................................................................................. 2-8  
Menus, Configuration, and Adjustments............................................................ 2-9  
Moving through menus by using front panel controls ............................................... 2-9  
Menu overview ................................................................................................................. 2-9  
Input Configuration ....................................................................................................... 2-10  
Input 2 Video Type.............................................................................................................2-11  
Input 4 Video Type.............................................................................................................2-11  
SDI Input (SDI IN) ...............................................................................................................2-11  
Output Configuration .................................................................................................... 2-11  
Resolution and refresh rates ............................................................................................2-12  
Output Signal.....................................................................................................................2-12  
Sync Polarity ......................................................................................................................2-12  
H Format............................................................................................................................2-13  
Blanking Configuration ................................................................................................. 2-13  
Top and bottom blanking .................................................................................................2-13  
Memory Preset ................................................................................................................ 2-13  
Save (SAVE) memory preset.............................................................................................2-14  
Clear (CLR) memory preset ...............................................................................................2-14  
Recalling a preset ..............................................................................................................2-15  
Advanced Configuration................................................................................................ 2-15  
Detail control.....................................................................................................................2-15  
Filter mode ........................................................................................................................2-15  
Blue mode ..........................................................................................................................2-16  
i
DVS 204 • Table of Contents  
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Table of Contents, cont’d  
Autoswitch (Autosw) mode ..............................................................................................2-16  
Enhanced (Enh) mode .......................................................................................................2-16  
2:2 Pulldown detection (PAL Film mode detect) submenu .............................................2-16  
RGB delay (Triple Action Switching)..................................................................................2-16  
Exit Menu ........................................................................................................................ 2-17  
Image Adjustments ........................................................................................................ 2-17  
Color, tint, brightness, contrast, centering, sizing ..................................................... 2-17  
Input Reset .......................................................................................................................... 2-18  
System Reset...................................................................................................................... 2-18  
Front Panel Security Lockout (Executive Mode) ............................................ 2-19  
IR 901 Infrared Remote Control .............................................................................. 2-20  
Aspect ratio presets ........................................................................................................ 2-20  
Freezing an input ........................................................................................................... 2-20  
Selecting an input .......................................................................................................... 2-20  
Size and center ............................................................................................................... 2-20  
Image adjustments ......................................................................................................... 2-20  
Troubleshooting ............................................................................................................... 2-21  
Operating problems ....................................................................................................... 2-21  
Chapter 3 • Serial Communication................................................................................ 3-1  
RS-232 Programmer’s Guide ........................................................................................ 3-2  
Host-to-scaler communications ....................................................................................... 3-2  
Scaler-initiated messages ................................................................................................... 3-2  
Error responses ................................................................................................................... 3-2  
Using the command/response tables ................................................................................. 3-3  
Command/response table for SIS commands..................................................................... 3-4  
Command/response table for special function SIS commands .......................................... 3-7  
Control Software for Windows ................................................................................. 3-8  
Installing the software ..................................................................................................... 3-8  
Using the control program .............................................................................................. 3-8  
Using the help program................................................................................................... 3-9  
Appendix A • Appendix........................................................................................................ A-1  
Specifications ..................................................................................................................... A-2  
Part Numbers and Accessories ................................................................................. A-4  
Included parts .................................................................................................................. A-4  
Accessories ........................................................................................................................ A-4  
Firmware Upgrade Installation................................................................................. A-5  
Serial Digital Interface (SDI) Card Installation ............................................... A-7  
All trademarks mentioned in this manual are the properties of their respective owners.  
68-605-01 Rev. C  
01 05  
ii  
DVS 204 • Table of Contents  
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DVS 204  
Chapter One  
1
Introduction  
About this Manual  
About the DVS 204  
Features and Options  
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Introduction  
About this Manual  
This manual discusses how to install, configure, and operate the Extron DVS 204  
digital video scaler and how to operate the optional IR 901 infrared remote  
control (part #70-152-01).  
Throughout this manual the terms “DVS”, “digital video scaler”, and “scaler”  
are used interchangeably to refer to the same product.  
About the DVS 204  
What is the DVS 204?  
The DVS is a series of high performance digital video scalers that offers 56  
output rates, including HDTV, and provides scaling solutions for boardrooms,  
conference rooms, and home theaters, as well as rental and staging applications.  
The scalers come in four models, two of which offer a serial digital interface (SDI)  
input connector: DVS 204 (no SDI), DVS 204 D (SDI), DVS 204 12V (12 volt  
external power supply, no SDI), and DVS 204 D 12V (12 volt external power  
supply, SDI).  
To enable superior scaling performance, the DVS 204 features several of Extron’s  
patented and patent-pending technologies, including Dynamic Motion  
Interpolation (DMI™) technology, and 3:2 and 2:2 pulldown detection. DMI is  
an advanced motion detection and compensation method that enables image  
enhancement with no loss of image fidelity.  
The DVS 204 scales composite video, S-video, and component video up to  
computer-video (RGBHV/RGBS/RGsB) or HD component, which can be output  
to two display devices via individually buffered BNC and 15-pin HD connectors.  
Controlling the DVS 204 digital video scaler  
The DVS 204 can be controlled using one or more of the following methods:  
• The front panel controls.  
• A computer, a touch screen panel, or any other device that can send and  
receive the serial communications through the RS-232 port. Extron’s  
Simple Instruction Set (SIS™) is a set of simple keystroke commands that  
can be used with any such devices, and Extron’s control software for  
Windows provides a graphical interface for controlling the scaler from a  
computer.  
• The optional IR 901 remote control, which has most of the front panel controls.  
Features and Options  
Features  
Four video inputs  
•
•
Input 1 — One BNC connector on the rear panel accepts composite video.  
Input 2 — Three BNC connectors on the rear panel accept composite,  
component, or S-video.  
•
•
Inputs 3 — One 4-pin DIN connector accepts an S-video signal.  
Input 4 — One 15-pin HD connector accepts an RGB pass-through  
(RGBHV, RGBS, RGsB), RGBS, or RGBcvS video signal.  
SDI video input (optional) — One BNC connector on the rear panel accepts SDI  
video.  
1-2  
DVS 204 • Introduction  
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Buffered video outputs — Six rear-panel BNC connectors and one VGA-type  
15-pin HD connector provide connections for RGB output. Both outputs  
(the BNCs or the 15-pin HD connector) are active at all times for  
simultaneous output.  
Three ways to control the scaler — The scaler’s front panel, a computer or other  
RS-232 control device, or the optional IR 901 remote control can all be used  
to control the scaler.  
Scaled outputs — The DVS 204 offers 59 different output rates.  
RS-232 configuration — The DVS 204 can be configured by using the Extron  
control software for Windows, or by using a third party control system.  
Accu-RATE Frame Lock™ — The Extron Accu-RATE Frame Lock™ eliminates  
artifacts from scaled motion video by eliminating frame rate conversion. It  
locks the output frame rate to the input frame rate of the active input. The  
result is a switching system that eliminates image tears and other artifacts  
from motion video.  
Dynamic Motion Interpolation™ (DMI™) — This video processing technique is  
an advanced motion prediction and compensation method that treats  
motion content and still content with different algorithms to yield high  
fidelity images.  
3:2 pulldown detection for NTSC and 2:2 film detection for PAL video sources  
— These advanced film mode processing features help maximize image  
detail and sharpness for video sources that originated from film. When  
film is converted to NTSC video, the film frame rate has to be matched to  
the video frame rate in a process called 3:2 pulldown. Jaggies and other  
image artifacts can result if conventional deinterlacing techniques are used  
on film-source video. The DVS 204’s advanced film mode processing  
recognizes signals that originated from film. The DVS 204 then applies  
video processing algorithms that optimize the conversion of video that was  
made with the 3:2 pulldown process. This results in richly detailed images  
with sharply defined lines. A similar process is used for PAL film-source  
video.  
Versatile mounting options — The DVS 204 is 1U high, and a half rack wide. It  
is rack mountable, or it can be placed on a table or other furniture. Rubber  
feet are included.  
Options and accessories  
The DVS 204’s optional equipment includes:  
• IR 901 remote control — Extron’s IR 901 (part #70-152-01) is an infrared  
remote control which replicates all of the front panel controls of the  
DVS 204 except the Menu and Next buttons.  
• SDI input card — Serial digital interface (SDI) input can be added to the  
DVS 204 model by the installation of an SDI input card (part #70-168-01).  
• Rack shelf mounting kit — The 1U high, half rack width DVS 204 can be rack  
mounted using the rack shelf mounting kit (part #60-190-01).  
DVS 204 • Introduction  
1-3  
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Introduction, cont’d  
1-4  
DVS 204 • Introduction  
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DVS 204  
Chapter Two  
Installation and Operation  
2
Mounting the Scaler  
Rear Panel Features  
Front Panel Features  
Optimizing the System for a DVD  
Menus, Configuration, and Adjustments  
Image Adjustments  
Input Reset  
System Reset  
Front Panel Security Lockout (Executive Mode)  
IR 901 Infrared Remote Control  
Troubleshooting  
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Installation and Operation  
Mounting the Scaler  
Tabletop/desktop placement  
For tabletop or desktop placement only, install the self-adhesive rubber feet/pads  
(provided) onto the four corners of the bottom of the enclosure.  
Rack mounting  
1. If feet were installed on the bottom of the DVS 204, remove them.  
2. Place the DVS 204 on one half of the 1U (one unit high, one unit wide)  
rack shelf (part #60-190-01). Align the front of the DVS 204 with the  
front of the shelf, and align the threaded holes on the bottom of the  
DVS 204 with the holes in the rack shelf.  
3. Attach the DVS to the rack shelf with the two provided 4-40 x 3/16"  
machine screws. Insert the screws from the underside of the shelf, and  
securely fasten them into diagonally-opposite corners.  
False front panel  
uses 2 front holes.  
1
2
3
C
O
M
P
O
4
S
I
T
E
Y
U
C
O
V
L
/
T
N
S
T
-
V
ID  
C
E
E
N
T
O
E
R
R
G
M
B
E
N
X
U
B
R
T
/
C
O
N
T
S
IZ  
E
N
E
T
(2) 4-40 x 3/16" Screws  
A
D
J
U
S
T
IR  
4
D
IG  
IT  
A
D
V
E
L
V
S
S
ID  
2
A
O
0
E
C
L
R
Use 2 mounting holes on  
opposite corners.  
Rack mounting the DVS 204  
4. Attach the false front panel (provided with the rack shelf) to the  
unoccupied side of the rack (as shown above), or install a second half-  
rack-width device in that side by repeating steps 1–3.  
5. Attach the rack shelf to the rack using four 10-32 x ¾" bolts (provided).  
Insert the bolts through #10 beveled washers, then through the holes in  
the rack ears and rack, as shown above.  
2-2  
DVS 204 • Installation and Operation  
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Application diagram  
The diagram shown below is an example of a typical DVS 204 application with  
cable connections.  
RS-232 Control  
E
T
O
M
E
R
-Y  
,B  
,Y  
-Y  
/R  
B
G
R
S
OUTPUT  
S
T
INPU  
DI  
B
H
/
U
S
G
R
S
G
R
S
-T  
S
R
c
A
B
P
B-Y  
/C  
VIDEO  
LCD Projector  
3
DVS 204  
Monitor  
Laptop Computer  
VCR  
DVD Player  
Document Camera  
Application diagram example of the DVS 204  
DVS 204 • Installation and Operation  
2-3  
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Installation and Operation  
Rear Panel Features  
The rear panels of the DVS 204 D and DVS 204 D 12V models, as shown below,  
contain all of the possible connectors available on the DVS 204 series of scalers  
(the DVS 204 and DVS 12V models do not come with an SDI input connector).  
2
9
5
INPUTS  
OUTPUTS  
REMOTE  
100-240V  
0.3A  
VIDEO  
SDI  
R
/R-Y  
G
B
/B-Y  
B-Y  
/C  
/Y  
RGB  
PASS - THRU/  
RGBS/RGBcvS  
1
S-VIDEO  
RGB/R-Y,Y,B-Y  
Y
/VID  
R-Y  
H
V
S
2
3
4
50/60 Hz  
1
4
8
6
3
7
DVS 204 D rear panel connectors  
INPUTS  
OUTPUTS  
REMOTE  
VIDEO  
SDI  
R
/R-Y  
G
B
/B-Y  
B-Y  
/C  
/Y  
RGB  
PASS - THRU  
RGBS/RGBcvS  
1
POWER  
S-VIDEO  
12V 1.5A DC  
RGB/R-Y,Y,B-Y  
Y
/VID  
R-Y  
H
V
S
2
3
4
1a  
DVS 204 D 12V rear panel power connector  
The rear panel connectors of the 12V DC models are identical to those of the  
AC models, except for the 12 volt power input connector.  
AC power connector — Plug a standard IEC power cord into this  
connector to connect the scaler to a 100 to 240 VAC, 50 Hz or 60 Hz power  
source. The front panel control and input selection LEDs will light during  
power-up.  
1
1a 12V DC power connector — Plug the included 12 V power supply into this  
input jack (DVS 204 12V and DVS 204 D 12V models only). The front panel  
control and input selection LEDs will light during power-up.  
Video input 1: Composite video — A composite video signal is  
input through the female BNC connector.  
2
VIDEO  
1
Video input 2: Composite/S-video/Component — This input,  
3
consisting of 3 female BNC connectors, accepts composite video, S-video,  
and component video signals. Connect cables for the appropriate signal  
type, as shown here.  
S-video (Y/C)  
Component Video (R-Y, Y, B-Y)  
Composite Video  
B-Y  
/C  
B-Y  
/C  
B-Y  
/C  
Y
/VID  
Y
/VID  
Y
/VID  
R-Y  
R-Y  
R-Y  
2
2
2
2-4  
DVS 204 • Installation and Operation  
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S-VIDEO  
3
Video input 3: S-video — Connect an S-video signal to this 4-pin  
4
5
mini-DIN female connector.  
SDI  
SDI (serial digital interface) input connector — Connect an SDI  
signal to this female BNC connector.  
Only the DVS 204 D and DVS 204 D 12V models have an SDI connector.  
Video input 4: RGB pass-through, RGBS, or RGBcvS —  
6
7
RGB  
Connect an RGB pass-through (RGBHV, RGBS, RGsB), RGBS,  
PASS - THRU/  
RGBS/RGBcvS  
or RGBcvS video signal to this 15-pin HD connector. The  
pass-through signals are not scalable.  
4
Equipment following the SCART interconnection standard  
may be connected to the RGBcvS input cabling configuration.  
RGB (RGBHV, RGBS, RGsB) or HD component (R-Y, Y, B-Y) video BNC  
output — Connect coaxial cables from a display device to these BNCs for a  
scaled or pass-through RGB or a scaled component video output. The  
output can be scaled to 56 different output rates. The scaled inputs (1-3) are  
output, as shown below.  
The default for the “H” BNC connector is always horizontal sync. See the  
following section “RGB pass-through”, for the only exception to this rule.  
RGBHV*  
RGBS  
OUTPUTS  
OUTPUTS  
R
/R-Y  
G
B
/B-Y  
R
/R-Y  
G
B
/B-Y  
/Y  
/Y  
H
V
S
H
V
S
OUTPUTS  
OUTPUTS  
R
G
B
R
G
B
/R-Y  
/Y  
/B-Y  
/R-Y  
/Y  
/B-Y  
H
V
S
H
V
S
RGsB  
Component Video (R-Y,Y, B-Y)  
7
8
Outputs  
and  
are both buffered and can be connected simultaneously  
to two different displays. For RGB inputs, the output signal’s sync format is  
based on the format of the incoming RGB signal. For all other types of  
inputs, the user selects the output sync format. The sync format will be the  
same for both outputs.  
RGB pass-through — An RGB pass-through signal with composite sync  
(“RGB” is selected for input 4; see the Input Configuration section in this  
chapter) will always output composite sync through the “H” BNC output  
connector, as shown in the following illustration.  
If both an RGB pass-through signal with composite sync and a scaled video  
input (1-3) are output as RGBS, the H Format must be set to “HV”  
(composite sync). This will cause the scaled video input to output composite  
sync on the same connector (the “H” BNC) as the pass-through signal  
instead of the “S” BNC. See the H Format section in this chapter.  
For scaled inputs on input 4 (RGBS or RGBcvS), the H Format will not  
have to be set to “HV” since those inputs will be output like inputs 1-3, as  
shown in the previous connection diagram.  
DVS 204 • Installation and Operation  
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Installation and Operation, cont’d  
RGBS from RGBS pass-through input  
OUTPUTS  
R
G
B
/R-Y  
/Y  
/B-Y  
S
H
V
RGB or HD component (R-Y, Y, B-Y) 15-pin HD video output — Connect  
8
9
an RGB video display or HD component video display to this connector.  
Remote (RS-232/contact closure) 9-pin port — This connector provides for  
two-way RS-232 communication and contact closure control. See chapter  
three, “Serial Communication”, for information on how to install and use  
the control software and SIS commands.  
The default protocol is 9600 baud, 1 stop bit, no parity, and no flow control.  
The rear panel RS-232 9-pin D female connector has the following pin  
assignments:  
Pin RS-232 function Description  
1
2
3
4
5
6
7
8
9
Input #1  
Tx  
Rx  
Input #2  
Gnd  
Input #3  
Input #4  
–
Contact closure  
Transmit data  
Receive data  
Contact closure  
Signal ground  
Contact closure  
Contact closure  
No connection  
IR input  
Hardwired IR  
The Remote connector also provides a way to select an input using a remote  
contact closure device. Contact closure control uses pins on the Remote  
connector that are not used by the RS-232 interface (see preceding table).  
To select a different input number using a contact closure device,  
momentarily short the pin for the desired input number to logic ground  
(pin 5). To force one of the inputs to be always selected, leave the short to  
logic ground in place. The short overrides front panel input selections.  
2-6  
DVS 204 • Installation and Operation  
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Front Panel Features  
The front panel buttons, controls, LCD, and infrared sensor of the DVS 204, as  
shown below, are found on all models of the DVS 204 scaler series. The LEDs  
above each input button will light green and the LEDs above/below each picture  
control button will light amber when the button is pressed.  
7
12  
6
MENU  
1
2
3
4
COL/TNT CENTER  
ADJUST  
IR  
BRT/CONT SIZE  
NEXT  
DVS 204  
DIGITAL VIDEO SCALER  
1
5
8
10  
2
9
3
4
11  
DVS 204 front panel  
Input selection buttons  
Composite input button — This button selects composite video input  
1
2
3
4
(Input 1).  
Composite/YC/component input button — This button selects composite  
video, YC, or component video input (Input 2).  
S-video input button — This button selects the S-video input (Input 3).  
RGB pass-through/RGBS/RGBcvS input button — This button selects the  
RGB pass-through (RGBHV, RGBS, RGsB), RGBS (15 kHz), or RGBcvS  
input (Input 4).  
An SDI input signal can be assigned to any of the inputs (Inputs 1 through  
4).  
Picture adjustment buttons  
Pressing these buttons successively will toggle between the different picture  
adjustment functions and light the LEDs above and below each button.  
These buttons have no effect on the RGB pass-through inputs (Input 4).  
Color/Tint control button (Col/Tnt) — This button controls the color and  
tint adjustment on the display by using the Adjust horizontal and Adjust  
vertical adjustment knobs. The adjustment range of both color and tint is 0  
to 255. See the “Image Adjustments” section in this chapter.  
5
The tint control is not available if the input is component video.  
Brightness/Contrast control button (Brt/Cont) — This button controls the  
brightness and contrast adjustment on the display by using the Adjust  
horizontal and Adjust vertical adjustment knobs. The adjustment range of  
both brightness and tint is 0 to 255. See the “Image Adjustments” section in  
this chapter.  
Center control button — This button controls the centering adjustment on  
the output display by using the Adjust horizontal and Adjust vertical  
adjustment knobs. The adjustment range of both horizontal and vertical  
centering is 0 to +255. See the “Image Adjustments” section in this chapter.  
6
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Size control button — This button controls the size adjustment on the  
display by using the Adjust horizontal and Adjust vertical adjustment  
knobs. See the “Image adjustments” section in this chapter.  
Menu button  
Menu button — Use this button to enter and move through the main menu  
system in the DVS 204. See the “Menus, Configuration, and Adjustments”  
section in this chapter for details.  
7
Next button  
Next button — Use this button to step through the submenus in the  
8
DVS 204 menu system. See the “Menus, Configuration, and Adjustments”  
section in this chapter for details.  
LCD menu display and controls  
LCD — Displays configuration menus and status information. See the  
9
“Menus, Configuration, and Adjustments” section in this chapter for  
details.  
Adjust horizontal ( ) knob — In the menu system, rotate this knob to  
10  
11  
scroll through menu options and make adjustments.  
Adjust vertical ( ) knob — In the menu system, rotate this knob to scroll  
through menu options and make adjustments.  
Infrared sensor — This sensor is used to receive infrared (IR) signals from  
the IR-901 remote control. See the “IR 901 Infrared Remote Control” section  
in this chapter.  
12  
Optimizing the System for a DVD  
For optimal performance, follow the steps in this section in order when setting  
up the DVS 204 for a DVD.  
Setting up a DVD source  
To get the best results when using a DVD as a video source, Extron recommends  
that the DVD player itself be setup to output an aspect ratio of 16:9 and not 4:3.  
Because all DVDs are mastered as 16:9, having them set up for anything else will  
cause the player to internally scale and compress the signal. This scaling/  
compression by the DVD player will defeat the advantage of having 3:2  
pulldown detection in the DVS 204.  
All sizing adjustments to correct aspect ratio should be done using the DVS 204.  
To change the output aspect ratio of most DVD players,  
1.  
2.  
Enter the DVD player’s Setup or Action menu while the disc is stopped.  
Select a 16:9 aspect ratio.  
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Menus, Configuration, and Adjustments  
Scaler configuration and adjustments can be performed by using the Windows-  
based control program (see chapter three for details) or by using the front panel  
controls and the menus that are displayed on the DVS 204’s LCD screen. These  
menus are used primarily when the scaler is first set up.  
Moving through menus by using front panel controls  
Menu button — Press the Menu button to activate menus and to scroll to the six  
main menus.  
Next button — Press the Next button to move between the submenus of a  
selected main menu. Pressing the Next button during input configuration  
causes the current input’s number and format type to be displayed on the  
LCD  
Adjust (  
,
) knobs — In configuration mode, rotate the Adjust horizontal (  
)
knob and Adjust vertical ( ) knob to scroll through submenu options and to  
make adjustment selections. Refer to the flowcharts in this chapter and to  
specific sections for explanations on knob adjustments.  
Image adjustment buttons: Col/Tnt, (color/tint) Brt/Cont (brightness/contrast),  
Size, and Center — When one of these buttons is pressed successively, the  
corresponding image adjustment menu appears on the LCD screen.  
Adjustments can then be made by rotating the Adjust horizontal ( ) knob  
or the Adjust vertical ( ) knob. Settings and adjustments are stored in  
nonvolatile memory.  
Menu overview  
The default menus appear on the LCD when no adjustments are actively being  
made. They cycle between the screen showing the model of the scaler (DVS 204  
or DVS 204 D) and the screen that shows the active input’s number and video  
format, as shown below.  
2 sec.  
2 sec.  
INPUT 1  
CMPOSITE  
852 x  
480 @60  
EXTRON  
DVS204D  
NO  
SIGNAL  
Power  
on  
2 sec.  
2 sec.  
2 sec.  
* The No Signal default menu only occurs if  
there is no signal present at the currently  
selected input connector.  
Default menus  
From any menu or submenu, after ten seconds of inactivity the DVS 204  
will save all adjustment settings and time-out to the default menus.  
The main menus are as shown in the following flowchart. Use the Menu key to  
scroll between them.  
The No Signal default menu only occurs if there is no signal present at the  
currently selected input connector.  
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2 sec.  
2 sec.  
NO  
INPUT 1  
CMPOSITE  
852 x  
480 @60  
EXTRON  
DVS204D  
Power  
on  
2 sec.  
2 sec.  
SIGNAL  
2 sec.  
* The No Signal default menu only occurs if  
there is no signal present at the currently  
selected input connector.  
MENU  
INPUT  
CONFIG  
MENU  
OUTPUT  
CONFIG  
MENU  
BLANKING  
CONFIG  
MENU  
MEMORY  
PRESET  
MENU  
ADVANCED  
CONFIG  
MENU  
EXIT  
MENU  
NEXT  
MENU  
Main menus  
To return to the default screens, let the DVS 204 time-out for 10 seconds, or  
press the Menu button until the Exit Menu menu appears, then press the Next  
button.  
Submenus are accessed from a main menu by pressing the Next button. If  
you press the Menu button while a submenu is active, the next main menu  
will become active. For example, the menu will change from the Input  
Configuration menu or its submenus to the Output Configuration main  
menu.  
Input Configuration  
The following flowchart provides an overview of the Input Configuration  
submenus and the options for each setting.  
EXTRON  
DVS204D  
MENU  
INPUT  
CONFIG  
SDI IN  
1 2 3 <4>  
INPUT 2  
COMPNENT  
INPUT 4  
RGBcvS  
NEXT  
NEXT  
NEXT  
NEXT  
*
NOTE Input 1 can only accept composite  
video.  
Input 3 can only accept S-video.  
Only Inputs 2 and 4 can  
be configured for different video  
types, although an SDI input can be  
assigned from any Input Configuration  
menu.  
Assign SDI to Input #  
1, 2, 3, 4, * (none)  
Input 2 video types  
Input 4 video types  
•
•
•
•
RGB pass-through (default)  
RGBS  
RGBcvS  
•
•
•
Composite  
S-video  
Component (default)  
NOTE The SDI input can be assigned  
to any input. Once assigned to a  
specific input, only an SDI signal  
can be accepted on that input.  
SDI can be disabled by selecting  
the *.  
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Input 1 can only input composite video, and Input 3 can only input S-video,  
no other video types are selectable for these inputs. Only Inputs 2 and 4  
offer selectable video types. From the Input Configuration menu, pressing  
the Next key successively will display submenus with the input video types  
for Inputs 2 and 4. The SDI input (if any) can be assigned to any input from  
the Input Configuration submenus.  
Input 2 Video Type  
Rotate either the Adjust horizontal ( ) knob or Adjust vertical ( ) knob while in  
the Input 2 submenu to select the appropriate video format (composite, S-video,  
component) for Input 2. The default is component video.  
Input 4 Video Type  
Rotate the Adjust horizontal ( ) knob while in the Input 4 submenu to select the  
appropriate video format (RGB pass-through, RGBS, RGBcvS) for Input 4. The  
default is RGB pass-through.  
SDI input (SDI IN)  
Rotate either the Adjust horizontal ( ) knob or Adjust vertical ( ) knob while in  
the SDI Input submenu to select the input # for the SDI input. The SDI input can  
be assigned to Inputs 1, 2, 3, 4, or none (*). The default is none.  
After the SDI input is no longer assigned to an input, either because it has  
been assigned to a new input or is set to none, the input reverts back to the  
last video type that was assigned to it.  
Output Configuration  
The following flowchart provides an overview of the Output Configuration  
submenus and the options for each setting.  
Extron  
DVS204D  
MENU  
INPUT  
CONFIG  
MENU  
OUTPUT  
CONFIG  
H SYNC V  
NEG POS  
640 x  
480 @ 60  
SIGNAL  
RGB  
NEXT  
NEXT  
NEXT  
NEXT  
Scaler output rates  
• See the scaler output table in this  
chapter for available combinations of  
resolutions and refresh rates.  
Output video types  
Sync polarity combinations  
•
RGB (default)  
• YUV  
RGsB  
•
•
H+/V-  
H+/V+  
•
•
H-/V- (default)  
H-/V+  
•
NOTE This submenu is only active if RGB  
is selected as the output video type.  
If the signal type was specified as  
Default: 1024 x 768 @60 Hz  
RGsB or YUV in the previous submenu,  
the sync polarity submenu will not display.  
H FORMAT  
<H> HV  
NEXT  
Select where to output composite sync  
•
•
H (default) – outputs horizontal sync through the "H" BNC  
HV – outputs composite sync through the "H" BNC  
NOTE See the section "RGB pass-through" under the Rear Panel Features  
section of this chapter for further details.  
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Resolution and refresh rates  
Rotate the Adjust horizontal ( ) knob while in this submenu to select one of the  
available combinations of output resolutions and refresh (vertical scanning)  
rates.  
Rotate the Adjust vertical ( ) knob while in this submenu to select one of the  
available refresh rates. Selecting @60L (Lock) refresh rate enables the Extron  
Accu-RATE Frame Lock™ (AFL™) (patent pending) feature. Accu-RATE Frame  
Lock eliminates image tearing and other artifacts of scaling motion video by  
eliminating frame rate conversion. It exactly matches the output rate of the  
DVS 204’s scaler to the frame rate of the active input. Select this feature if you  
will be using motion video sources with a display that is capable of a variety of  
refresh rates.  
Available Scaler Output Resolutions and Rates  
Resolution 50 Hz 56 Hz 60 Hz 75 Hz Lock @ 50/60* True 72/100*  
640 x 480  
800 x 600  
848 x 480  
852 x 480  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
**  
X
**  
X
1024 x 768  
1280 x 768  
1280 x 1024  
1360 x 765  
1365 x 1024  
1400 x 1050  
HDTV 480p  
HDTV 576p  
HDTV 720p  
HDTV 1080p  
HDTV 1080i  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
*Rate is autoselected based on input  
** NTSC only; no 100 Hz rate  
The default resolution and rate is 1024 x 768 @ 60Hz.  
Output Signal  
Using either the Adjust horizontal ( ) or Adjust vertical ( ) knob, select the  
output video format required by the display: RGB (default), YUV, or RGsB.  
Sync Polarity  
The display or projector may require a particular combination of horizontal (H)  
and vertical (V) sync signal polarities. Select the appropriate combination of  
positive or negative H and V sync by rotating either the Adjust horizontal ( ) or  
Adjust vertical ( ) knob.  
If the previous output signal was specified as RGsB or YUV, this submenu  
will not be displayed because this menu is only active for RGBHV.  
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H Format  
For RGBS pass-through input (RGB is selected for Input 4), composite sync is  
output on the “H” BNC. See “RGB pass-through” under “Rear Panel Features”  
in this chapter.  
To output composite sync on the “H” BNC (for scaled video inputs only, not  
pass-through), the H Format must be specified as “HV”.  
Select either H or HV by rotating either the Adjust horizontal ( ) or Adjust  
vertical ( ) knob. The default is “H”.  
Blanking Configuration  
The following flowchart provides an overview of the Blanking submenu and the  
options for each setting.  
Extron  
DVS204D  
MENU  
INPUT  
CONFIG  
MENU  
OUTPUT  
CONFIG  
BLANKING  
CONFIG  
TOP  
000  
BTM  
000  
MENU  
NEXT  
NEXT  
Top and bottom blanking  
•
Top blanking ranges from 000 (default)  
to 127  
•
Bottom blanking ranges from 000 (default)  
to 127  
Top and bottom blanking  
To remove noise or extraneous material, such as closed captioning, remove scan  
lines at either the top or bottom of the screen. Rotate the Adjust horizontal (  
)
knob to adjust the top blanking from 0 to 127 lines. The default is 0. Rotate the  
Adjust vertical ( ) knob to adjust the bottom blanking from 0 to 127 lines. The  
default is 0.  
Memory Preset  
The following flowchart provides an overview of the Memory Preset submenus  
and the options for each setting.  
The presets will only save the Sizing and Centering information, but will  
not save information for the pass-through input, i.e., RGB at Input 4.  
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Installation and Operation, cont’d  
EXTRON  
DVS204D  
MENU  
INPUT  
CONFIG  
MENU  
OUTPUT  
CONFIG  
MENU  
BLANKING  
CONFIG  
MENU  
IN3 SAVE  
<N/A> 1 2 3  
IN3 CLR  
<N/A> 1 2 3  
MEMORY  
PRESET  
NEXT  
NEXT  
NEXT  
Saving (SAVE) memory presets  
Clearing (CLR) memory presets  
•
Save the currently selected input's  
sizing and centering information  
•
•
•
Clear the currently selected input's  
saved sizing and centering  
information  
•
Up to 3 presets per input can be  
selected < > (N/A is the default) and  
saved.  
Up to 3 presets per input can be  
selected < > (N/A is the default)  
and cleared.  
•
Save a preset by pressing the NEXT  
button.  
Clear a preset by pressing the  
NEXT button.  
Save (SAVE) memory preset  
From this submenu, the sizing and centering information for the currently  
selected input can be saved to memory. Up to three memory presets can be saved  
per input.  
Using either the Adjust horizontal ( ) or Adjust vertical ( ) knob, select (< >)  
either N/A, 1, 2, or 3 to select a preset. The default is <N/A>. To save the preset,  
press the Next button.  
The presets will save the Sizing and Centering information in non-volatile  
memory, so powering down the DVS 204 will not lose the presets. Saving a  
preset by pressing the Next button will also advance to the next submenu  
(Clear memory preset).  
Clear (CLR) memory preset  
From this submenu, up to three saved presets for the currently selected input can  
be cleared from memory.  
Using either the Adjust horizontal ( ) or Adjust vertical ( ) knob, select (< >)  
either N/A, 1, 2, or 3 to select a preset. The default is <N/A>. To clear the preset,  
press the Next button.  
Clearing a preset by pressing the Next button will also cause a return to the  
Memory Preset menu.  
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Recalling a preset  
Recalling a saved preset requires that the desired input be currently selected and  
that the input button be pressed successively to activate each saved preset (up to  
three). Each saved preset will display the LCD message “Input #X Memory Y”  
where “X” refers to the input (1 to 4) and “Y” refers to the preset (1 to 3).  
The absence of any saved presets will not display the “Input #X Memory Y”  
LCD message for the absent preset.  
The presets are specific to a selected output rate. If the output rate is  
subsequently changed, the previously saved preset will have no effect on the  
video output. However, if the original output rate is later restored for a  
saved preset, the preset will again apply to that output rate.  
Advanced Configuration  
The following flowchart provides an overview of the Advanced Configuration  
submenus and the options for each setting.  
NEXT  
RGB delay time  
ADVANCED  
CONFIG  
RGB DLY  
0.0 SEC  
EXTRON  
DVS204D  
• 0.0 to 5.0 seconds  
in 0.5 sec. increments.  
(default is 0.0)  
Either Adjust knob is used  
to adjust the submenus  
NEXT  
MENU  
NEXT  
PAL film mode (2:2 pulldown detection)  
• On  
• Off (default)  
Detail (sharpness)  
• Ranges from 0 to 63.  
(default is 16)  
2:2 PLDN  
<OFF> ON  
DETAIL  
016  
INPUT  
CONFIG  
NEXT  
MENU  
NEXT  
Enhanced mode (gain control)  
• Off (default)  
• On  
Filter  
• On (default)  
• Off  
ENH MODE  
<OFF> ON  
FILTER  
OFF <ON>  
OUTPUT  
CONFIG  
NEXT  
MENU  
Display blue and sync only  
• On  
• Off (default)  
BLUEMODE  
<OFF> ON  
BLANKING  
CONFIG  
MENU  
NEXT  
Autoswitch mode  
• On  
• Off (default)  
MEMORY  
PRESET  
AUTOSW  
<OFF> ON  
MENU  
NEXT  
Detail control  
This submenu allows adjustment of the image detail (sharpness) of the output  
display. The adjustment ranges from 0 to 63. The default is 16.  
Using either the Adjust horizontal ( ) or Adjust vertical ( ) knob, adjust the  
detail while observing the output display.  
Filter mode  
The Filter mode, when set “On”, reduces or eliminates aliasing and the resultant  
“jail bar” effect. For digital displays, set the filter “On” to reduce or eliminate  
high frequency noise. For CRT output, set the filter “Off”.  
Use either the Adjust horizontal ( ) or Adjust vertical ( ) knob to specify this  
mode as “On” or “Off”. The default is “On”.  
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Installation and Operation, cont’d  
Blue mode  
To aid in setup of the scaler’s color and tint, the Blue mode can be set from this  
submenu to “On” so that only sync and blue video signals will be passed to the  
display.  
Use either the Adjust horizontal ( ) or Adjust vertical ( ) knob to specify this  
mode. The default is “Off”.  
The Blue mode will be effective for YUV input signals. YC input signals  
will pass Y, but not C, so the output display will be black-and-white only.  
Autoswitch (Autosw) mode  
The Autoswitch mode causes the highest numbered input that has a signal  
present to be automatically selected. For example, if both Inputs 1 and 3 have  
active input signals, Input 3 will be selected.  
From this submenu, use either the Adjust horizontal ( ) or Adjust vertical ( )  
knob to specify this mode as “On” or “Off”. The default is “Off”.  
The Autoswitch mode ignores the presence of an SDI input signal, so any  
input which is assigned an active SDI signal will not be selected.  
Enhanced (Enh) mode  
When the Enhanced mode is set “On”, automatic gain control of the video input  
signal is enabled. If the input signal level is too weak, the signal gain will be  
increased, and if the input signal level is excessive, the signal gain will be  
decreased.  
From this submenu, use either the Adjust horizontal ( ) or Adjust vertical ( )  
knob to specify this mode as “On” or “Off”. The default is “Off”.  
The Enhanced mode will only be effective on composite and S-video input  
signals.  
2:2 Pulldown detection (PAL Film mode detect) submenu  
For the currently selected input, set this feature to “On” if the source is PAL video  
that originated in film. For standard PAL video sources, such as cameras, set this  
feature to “Off” (default).  
This feature does not apply to NTSC video sources since film  
mode (3:2 pulldown) is automatically detected for those signals.  
From this submenu, use either the Adjust horizontal ( ) knob or Adjust vertical  
( ) knob to specify this mode as “On” or “Off”.  
RGB delay (Triple-Action Switching)  
With Triple-Action Switching, the DVS 204 switches to the new sync signal  
before switching RGB (video) signals. RGB delay allows the display device to  
adjust to the new sync timing after a brief delay (during which the display is  
blanked) before displaying the new picture, which will appear without glitches.  
Triple-Action Switching is also known as video mute switching.  
Use the Adjust horizontal ( ) knob or Adjust vertical ( ) knob to select the  
blanking period (RGB delay time) from 0 seconds (default) to 5 seconds in  
0.5 second steps.  
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Exit Menu  
From this submenu, press the Next button to return to the Default menu cycle, or  
press the Menu button to return to the Input Configuration menu.  
EXTRON  
MEMORY  
DVS204D  
PRESET  
MENU  
MENU  
ADVANCED  
CONFIG  
INPUT  
CONFIG  
MENU  
MENU  
EXIT  
MENU  
BLANKING  
CONFIG  
NEXT  
MENU  
MENU  
Image Adjustments  
Image adjustments apply to scaled video output only; RGB signals are passed  
through without adjustments. Sizing and centering image adjustments can be  
stored in memory as a preset (see the “Memory Preset” section in this chapter)  
and can be set separately for each input.  
Color, tint, brightness, contrast, centering, sizing  
To adjust an image for color, tint, brightness, contrast, centering, or sizing follow  
the steps below. An example of making color adjustments, shown in the  
following flowchart, demonstrates the process, which is similar for all the other  
image adjustments.  
1.  
2.  
Press the input selection button of the input you wish to adjust.  
Toggle the appropriate image adjustment button (Color/Tint, Brightness/  
Contrast, Centering, and Sizing). The LCD display will show the name of  
the adjustments and the value of the current setting.  
2 sec.  
2 sec.  
NO  
INPUT 1  
CMPOSITE  
852 x  
480 @60  
EXTRON  
DVS204D  
Power  
on  
2 sec.  
2 sec.  
SIGNAL  
2 sec.  
* The No Signal default menu only occurs if  
there is no signal present at the currently  
selected input connector.  
Input  
selection  
button  
INPUT 3  
S-VIDEO  
COL/TNT  
Col  
128  
Tint  
114  
10 sec.  
timeout  
NOTE The Adjust horizontal knob and the Adjust vertical knob  
are used to adjust the image settings on the left and  
right sides of the LCD screen, respectively.  
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Installation and Operation, cont’d  
3.  
Rotate the Adjust horizontal knob ( ) or Adjust vertical knob ( ) to select a  
level from the following adjustment ranges:  
The Adjust knobs have no mechanical limits to their rotation.  
•
•
Color and Tint (Col/Tnt): 0 to 255 (see note below)  
Brightness and Contrast (Brt/Cont): 0 to 255  
• Centering (Center): 0 to 255  
•
Sizing (Size)  
Rotating the horizontal Adjustment knob ( ) clockwise or  
counterclockwise will increase or decrease, respectively, the horizontal  
sizing. Rotating the vertical Adjustment knob ( ) clockwise or  
counterclockwise will increase or decrease, respectively, the vertical  
sizing. The visual indicator on the LCD will stop moving when the  
upper or lower sizing limit has been reached.  
The scaler will time-out to the default menu after 10 seconds.  
4.  
Repeat steps 2 and 3 for each image adjustment to be made for that input.  
The LCD display will indicate that a Tint adjustment is not available (N/A)  
for Input 2 (component) or Input 4 (RGB, RGBS, RGBcvS).  
Input Reset  
Each input of the DVS 204 scaler can be reset to its default centering and sizing  
values by holding down the specific input button until the Input # Reset message  
is displayed on the LCD screen.  
System Reset  
The DVS 204 can be reset to all of its default values by holding down the Input 1  
button while simultaneously plugging in the power cord. The System Reset  
message will be displayed on the LCD screen.  
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Front Panel Security Lockout (Executive Mode)  
To prevent accidental changes to settings, press the Col/Tnt and Center buttons  
simultaneously for 2 seconds to enable the DVS 204’s Executive mode. Executive  
mode locks all front panel functions. The menu system will still return to the  
Default menu when 10 seconds have elapsed. The IR 901 will still be able to  
control the scaler after Executive mode has been enabled. When Executive mode  
is active, all functions and adjustments can still be made through RS-232 control.  
For details on RS-232 control, see chapter three.  
To disable the Executive mode, press the Col/Tnt and Center buttons  
simultaneously for 2 seconds.  
Enable Executive Mode  
2 sec.  
2 sec.  
NO  
INPUT 1  
CMPOSITE  
852 x  
480 @60  
EXTRON  
DVS204D  
2 sec.  
2 sec.  
SIGNAL  
2 sec.  
* The No Signal default menu only occurs if  
there is no signal present at the currently  
selected input connector.  
Press for  
2 seconds*  
COL/TNT  
CENTER  
EXE MODE  
ENABLED  
10 sec.  
timeout  
Disable Executive Mode  
2 sec.  
2 sec.  
INPUT 1  
CMPOSITE  
852 x  
480 @60  
EXTRON  
DVS204D  
NO  
SIGNAL  
2 sec.  
2 sec.  
2 sec.  
* The No Signal default menu only occurs if  
there is no signal present at the currently  
selected input connector.  
Press for  
2 seconds*  
COL/TNT  
CENTER  
EXE MODE  
DISABLED  
10 sec.  
timeout  
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Installation and Operation, cont’d  
IR 901 Infrared Remote Control  
The IR 901, shown at right, replicates all of the front  
panel controls except the Menu and Next buttons. If  
Executive mode has been enabled on the DVS 204,  
input selection and adjustments can still be made from  
the IR 901. You must use the DVS 204’s front panel or  
the Windows-based control program (via an RS-232  
device) to configure and program the scaler. See  
chapter three, “Serial Communication”, for details.  
The topmost part of the IR 901 features three Aspect  
Ratio Preset buttons, a Freeze button and four input  
selection buttons (1, 2, 3, 4). Inputs 5 and 6, and the  
Take button are not functional. The middle portion of  
the IR 901 features the size and centering buttons. The  
bottom part contains the adjustment controls for color,  
tint, brightness, contrast, and detail adjustments. The  
sharpness buttons are not functional.  
Aspect ratio presets  
Up to three saved memory presets of sizing and  
centering information may be recalled selecting these  
buttons. See the “Memory Preset” section earlier in  
this chapter.  
Freezing an input  
DVS Remote  
To freeze the input being displayed, press the Freeze  
On/Off button. To unfreeze the input, press the Freeze  
button again.  
Selecting an input  
To select an input source, press an input button (1 through 4).  
Size and center  
Use the Size and Center buttons to adjust the sizing and centering aspects of a  
displayed image.  
Image adjustments  
The color, tint, brightness, contrast, and detail of a displayed image may be  
increased or decreased by using the appropriate Image Adjustment buttons at the  
bottom of the IR 901.  
2-20  
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Troubleshooting  
This section gives recommendations on what to do if you have problems  
operating the DVS 204, and it provides examples and descriptions for some  
image problems you might encounter.  
The following are some tips to help you in troubleshooting.  
1.  
Some symptoms may resemble others, so you may want to look through all  
of the examples before attempting to solve the problem.  
2.  
3.  
Be prepared to backtrack in case the action taken doesn’t solve the problem.  
It may help to keep notes and sketches in case the troubleshooting process  
gets lengthy. This will also give you something to discuss if you call for  
technical support.  
4.  
5.  
Try simplifying the system by eliminating components that may have  
introduced the problem or made it more complicated.  
For sync-related problems: Portable digital projectors are designed to  
operate close to the video source. Sync problems may result from using  
long cables or from improper termination. A sync adapter, such as Extron’s  
ASTA (active sync termination adapter), may help solve these problems.  
6.  
For LCD and DLP projectors and plasma displays: In addition to the sync-  
related information above, check the user’s manual that came with the  
projector for troubleshooting tips, as well as for settings and adjustments.  
Each manufacturer may have its own terms, so look for terms like “auto  
setup”, “auto sync”, “pixel phase”, and “tracking”.  
Operating problems  
The table below shows some common operating problems and their solutions.  
Problem  
Cause  
Solution  
No image appears.  
The input signal is  
incompatible.  
Attach an input device that is  
compatible with NTSC 3.58,  
NTSC 4.43, PAL, or SECAM.  
Freeze mode was  
entered when the  
image was black.  
Deactivate freeze mode  
The scaled output  
rate is too high for  
the display.  
Change the scaled output to a  
compatible resolution.  
The image is frozen.  
Freeze mode is on.  
Deactivate freeze mode.  
If that does not work, unplug the  
power cord from the scaler, then  
plug it back in.  
The image is flashing. The scaled output  
rate is too high for  
Change the scaled output to a  
compatible resolution.  
the display.  
The image is green.  
The image is too soft.  
The output sync  
is configured for  
sync on green.  
Turn off sync on green.  
Change the detail level.  
The detail level  
needs to be  
changed.  
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Installation and Operation, cont’d  
2-22  
DVS 204 • Installation and Operation  
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DVS 204  
Chapter Three  
3
Serial Communication  
RS-232 Programmer’s Guide  
Control Software for Windows  
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Serial Communication  
The DVS 204 can be remotely controlled via a host computer or other device  
(such as a control system) attached to the rear panel Remote connector. The  
control device (host) can use either Extron’s Simple Instruction Set (SIS)  
commands or the graphical control program for Windows.  
The scaler uses a protocol of 9600 baud, 1 stop bit, no parity, and no flow control.  
The rear panel RS-232 9-pin D connector has the following pin assignments:  
Pin RS-232 function Description  
5
1
1
2
3
4
5
6
7
8
9
Input #1  
Tx  
Rx  
Input #2  
Gnd  
Input #3  
Input #4  
–
Contact closure  
Transmit data  
Receive data  
Contact closure  
Signal ground  
Contact closure  
Contact closure  
No connection  
IR input  
9
6
DB9 Pin Locations  
Female  
Hardwired IR  
RS-232 Programmer’s Guide  
Host-to-scaler communications  
SIS commands consist of one or more characters per field. No special characters  
are required to begin or end a command sequence. When the DVS 204  
determines that a command is valid, it executes the command and sends a  
response to the host device. All responses from the scaler to the host end with a  
carriage return and a line feed (CR/LF = ), which signals the end of the  
response character string. A string is one or more characters.  
It is also possible to send several SIS commands back-to-back in sequence.  
Scaler-initiated messages  
When a local event such as a front panel selection or adjustment takes place, the  
DVS 204 scaler responds by sending a message to the host. No response is  
required from the host. The scaler-initiated messages are listed here  
(underlined).  
(C) Copyright 2002, Extron Electronics, DVS 204, Vx.xx  
The DVS 204 sends the copyright message when it first powers on. Vx.xx is the  
firmware version number.  
X1  
X1  
C hn  
(where  
is the input number)  
The DVS 204 sends this response when an input is switched.  
Error responses  
When the scaler receives a valid SIS command, it executes the command and  
sends a response to the host device. If the DVS 204 is unable to execute the  
command because the command is invalid or it contains invalid parameters, it  
returns an error response to the host.  
The error response codes and their descriptions are as follows:  
E01 – Invalid input channel number (the number is too large)  
E10 – Invalid command  
E11 – Invalid preset number  
E13 – Invalid value (the number is out of range/too large)  
E17 – Illegal command for this signal type.  
3-2  
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Using the command/response tables  
The command/response tables on the next page list valid command ASCII codes,  
the scaler’s responses to the host, and a description of the command’s function  
or the results of executing the command. Upper and lower case characters may be  
used interchangeably in the command field.  
The ASCII to HEX conversion table at left is for use with the  
command/response tables.  
ASCII to HEX Conversion Table  
•
ASCII to Hex conversion table  
The command/response tables use symbols (defined below) to represent variables.  
Symbol definitions  
=
=
=
=
CR/LF (carriage return/line feed) (hex 0D 0A)  
=
Detected input signal standard (0 through 4)  
X12  
0 = none  
1 = NTSC 3.58  
2 = PAL  
3 = NTSC 4.43  
4 = SECAM  
– = not applicable (occurs when the input is  
set for RGB, YUV, or progressive YUV)  
•
Space  
Escape key  
Esc  
X1  
Specific input number (0 through 4)  
0 = no input  
1 = input 1, 2 = input 2, and so forth  
X2  
X4  
=
=
0 = off, 1 = on  
Video signal type (1 through 7)  
1 = composite video  
2 = YC  
=
=
=
Detail level (0 through 63)  
X13  
X14  
X16  
Adjustment range (0 through 127)  
Executive mode status (0 through 2)  
0 = disabled (executive mode off, normal  
mode on)  
3 = YUV  
4 = RGB  
5 = RGBS  
6 = RGBcvS  
1 = enabled, image adjustments are locked  
7 = SDI (serial digital interface)  
=
=
=
Blanking adjustment range (0 through 127 lines)  
Input configuration preset (1 through 3)  
Scaler refresh rate  
X17  
X19  
X20  
X5  
X8  
=
=
Input (1 to 4)  
Controller firmware version (listed to  
two decimal places e.g.: x.xx)  
1
2
3
4
5
= 50 Hz  
= 56 Hz (1280x768 only)  
= 60 Hz  
= 75 Hz  
= AFL* (50 Hz for PAL or 59.94 Hz for  
NTSC)  
=
=
Picture adjustment range (0 through 255)  
X10  
X11  
Scaler resolution  
1
2
3
4
5
6
7
8
9
= 640x480  
= 800x600  
= 848x480  
= 852x480  
= 1024x768  
= 1280x768  
= 1280x1024  
= 1360x765  
= 1365x1024  
6
= True rate (72 Hz for NTSC or 100 Hz for  
PAL)  
*NOTE: Lock or AFL is Accu-RATE Frame Lock™  
10 = 480p  
11 = 720p  
12 = 1080p  
13 = 1080i  
14 = 1400x1050  
15 = 576p  
DVS 204 • Serial Communication  
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Serial Communication, cont’d  
Command/response table for SIS commands  
Command  
ASCII Command Response  
Additional description  
(host to scaler)  
(scaler to host)  
Input selection  
Select video input  
Example:  
X5  
X5  
X1  
!
C
Video Input  
.
3!  
C3  
Example: select video Input 3.  
Memory preset  
X19  
X19  
X19  
Recall input configuration preset  
Save input configuration preset  
.
,
Rpre  
Spre  
Recall input preset  
Save to input preset  
.
X19  
X19  
X19  
.
Input video type (Inputs 2 and 4 only)  
X5 X4  
*
X5  
X4  
X5  
Set video signal type  
\
Typ  
Select Input  
(Inputs 2 and 4  
only) and assign it a video type  
. Video type  
X4  
X4  
is defined to  
be: 1 = video, 2 = S-video, 3 = YUV, 4 =  
RGB, 5 = RGBS, 6 = RGBcvS, and SDI.  
For SDI input, substitute  
X5  
X1  
with  
where the SDI input  
X1  
can be assigned to Input  
1, 2, 3, or 4 with 0 meaning  
there is no SDI input).  
(0,  
Example:  
2*3\  
2Typ3  
Example: set Input 2 to 3 (YUV)  
Show the video signal type.  
Example: show Input 2 video type = 3.  
X5  
X5  
X4  
View the video signal type  
Example:  
\
Typ  
2\  
2Typ3  
Color  
X10  
X10  
Set a specific color value  
Example:  
C
Col  
Specify a color adjustment level.  
Example: set the color adjustment to 47.  
Increase color adjustment level.  
Decrease color adjustment level.  
Show the color adjustment.  
47C  
+C  
-C  
Col047  
X10  
Increment  
Decrement  
View the color value  
Col  
Col  
Col  
X10  
X10  
C
Tint  
X10  
X10  
Set a specific tint value  
Example:  
T
Tin  
Specify a tint adjustment level.  
Example: set the tint to 176.  
Increase tint adjustment level.  
Decrease tint adjustment level.  
Show the tint adjustment.  
176T  
+T  
-T  
Tin176  
X10  
Increment  
Decrement  
View the tint value  
Tin  
Tin  
Tin  
X10  
X10  
T
Contrast  
X10  
X10  
Set a specific contrast value  
Increment  
Decrement  
^
Con  
Con  
Con  
Con  
Specify the contrast adjustment.  
Increase the contrast.  
Decrease the contrast.  
X10  
+^  
-^  
^
X10  
X10  
View the contrast value  
Show the contrast setting.  
Brightness  
X10  
X10  
Set a specific value  
Y
Brt  
Specify the brightness  
adjustment.  
X10  
Increment  
Decrement  
View the brightness value  
+Y  
-Y  
Y
Brt  
Brt  
Brt  
Increase the brightness.  
Decrease the brightness.  
Show the brightness setting.  
X10  
X10  
Detail mode  
Set the detail level  
View the detail value  
Increment  
X13  
D
+D  
-D  
X13  
D
Det  
Det  
Det  
Det  
Specify the detail level.  
Show the detail setting.  
Increase detail level.  
Decrease detail level.  
X13  
X13  
X13  
Decrement  
3-4  
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Command/response table for SIS commands (continued)  
Command  
ASCII Command Response  
Additional description  
(host to scaler)  
(scaler to host)  
Horizontal shift  
Set horizontal position  
Increment  
Decrement  
View the horizontal pos. value  
X10  
X10  
H
Hph  
Hph  
Hph  
Hph  
Specify the horizontal position.  
Shift right.  
Shift left.  
X10  
+H  
-H  
H
X10  
X10  
Show the horizontal position.  
Vertical shift  
X10  
X10  
Set the vertical position  
Increment up  
Increment down  
/
Vph  
Vph  
Vph  
Vph  
Specify the vertical position.  
Shift up.  
Shift down.  
X10  
+/  
-/  
/
X10  
X10  
View the vertical pos. value  
Show the vertical position.  
Horizontal size  
Increase the horizontal size  
Decrease the horizontal size  
+:  
-:  
Hsz +  
Hsz -  
Widen the picture.  
Make the picture narrower.  
Vertical size  
Increase the vertical size  
Decrease the vertical size  
+;  
-;  
Vsz +  
Vsz -  
Make the picture taller.  
Make the picture shorter.  
Top blanking  
X17  
X17  
Specify a top blanking value  
(
Blt  
Set the number of lines to  
blank at the top of the picture.  
X17  
Increase the top blanking value  
Decrease the top blanking value  
View the top blanking value  
+(  
-(  
(
Blt  
Increase the # of top lines  
blanked.  
Decrease the # of top lines  
blanked.  
Show the number of lines that  
are blanked at the top of the  
picture.  
X17  
Blt  
X17  
Blt  
Bottom blanking  
X17  
X17  
Specify a bottom blanking value  
)
Blb  
Set the number of lines to  
blank at the bottom of the  
picture.  
X17  
Increase the bottom blanking value +)  
Decrease the bottom blanking value -)  
Blb  
Increase the number of lines  
blanked at the bottom.  
Decrease the number of  
bottom lines blanked.  
X17  
Blb  
X17  
View the bottom blanking value  
)
Blb  
Show the # of bottom lines  
that are blanked.  
Scaler rate  
X11  
X20  
X11  
X11  
X20  
X20  
Set the output rate  
*
=
Rte  
Rte  
*
*
Select a scaler output scan  
rate.  
Show the scaler output rate.  
View the output rate  
=
Video mute  
Mute on  
X2  
1B  
1B  
0B  
B
Vmt  
Mute video output.  
Example:  
Vmt1  
X2  
Mute off  
View video mute status  
Vmt  
Vmt  
Unmute video output.  
Show the status of video  
mute.  
X2  
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Serial Communication, cont’d  
Command/response table for SIS commands (continued)  
Command  
ASCII Command Response  
Additional description  
(host to scaler)  
(scaler to host)  
Freeze  
Enable  
1F  
0F  
Frz1  
Frz0  
Output a “frozen” video  
image.  
Turn off freeze (output  
motion).  
Disable  
X2  
View the freeze status  
F
F
Frz  
Show the freeze status.  
Example:  
Frz0  
Front panel security lockout (Executive mode)  
Disable  
0X  
Exe0  
Exe1  
Adjustments & selections can  
be made from the front panel.  
Lock front panel adjustments;  
adjust image via RS-232 only.  
Enable (lock image adjustments) 1X  
X16  
View the executive mode status  
X
X
Exe  
Show executive mode status.  
Example:  
Exe0  
Firmware version, part number & information requests  
X8  
Query firmware version number  
Q
Ver  
Show the controller firmware  
version.  
Request part number  
Request general info.  
N
I
N60-442-0_  
(See below)  
Show the scaler’s part #.  
Show the scaler’s status.  
X1  
X4  
X12  
X19  
X1  
C
•Typ •Std •Pre •Sdi  
Zap (reset to default settings)  
Esc  
Esc  
Zap image adjustments/controls  
zI  
ZapI  
Reset the image adjustments  
to factory settings.  
Reset everything: all settings  
and adjustments to the factory  
default.  
Zap all DVS 204 settings/memories  
zXXX  
ZapXXX  
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X?  
X!  
X?  
X!  
The syntax for setting a special function is  
*
# where  
is the function number and  
is the  
X?  
X?  
value. To view a function’s setting, use  
# where  
is the function number. In the following table the  
X?  
values of the  
variable are different for each command/function. These values are given in the  
rightmost column.  
Command/response table for special function SIS commands  
X!  
Command  
ASCII Command Response  
values  
(host to scaler)  
(scaler to host)  
and additional descriptions  
Enhanced mode  
X!  
X!  
Enhanced mode  
12 *  
#
Enh  
0 = off,  
1 = on,  
Example:  
12*1#  
Enh1  
Example: enable enhanced mode.  
Scaler settings  
X!  
X!  
Output signal  
6 *  
#
#
Syn  
0 = RGB  
1 = YUV  
2 = RGsB (sync on green, SOG)  
Example: RGB sync output  
Example:  
6*0#  
Syn0  
X!  
X!  
Scaler output polarity  
7 *  
Pol  
0 = H-/V- (default)  
1 = H-/V+  
2 = H+/V-  
3 = H+/V+  
Example:  
7*1#  
Pol1  
Example: H-/V+ sync polarity  
Blue screen  
X!  
X!  
Blue screen (blue & sync output only)  
8*  
#
Blu  
0 = off (default) (RGB & sync output)  
1 = on (blue video & sync output only)  
Example:  
8*1#  
Blu1  
Example: blue & sync output for  
setup.  
Auto switch  
Auto switch mode  
Example:  
X!  
X!  
10*  
#
Aut  
0 = off (default), 1 = on  
10*1#  
Aut1  
Example: enable auto switch mode.  
Reconstruction filter  
Reconstruction filter  
Example:  
X!  
X!  
11*  
#
Fil  
Fil1  
0 = off, 1 = on (default)  
Example: enable the reconstruction  
11*1#  
filter.  
PAL Film mode (2:2 pulldown detection)  
X!  
X!  
PAL film mode detection  
18*  
#
Flm  
0 = off (default), 1 = on  
Example:  
18*1#  
Flm1  
Example: enable PAL film mode.  
detection  
H Format (sync output format for “H” connector)  
X!  
X!  
RGBS H format  
15*  
#
HFm  
0 = H – horizontal sync (default)  
1 = HV – composite sync  
Example:  
15*1#  
HFm1  
Example: Output composite sync  
on “H” connector. See “H Format”  
and “RGB pass-through” sections in  
chapter two for a complete  
description of this function.  
RGB delay times  
X!  
X!  
RGB delay  
3 *  
#
RGB  
0 = 0.0 seconds (default),  
1 = 0.5 seconds, 2 = 1.0  
seconds, ... in ½ second steps  
up to 10 = 5.0 seconds  
Example:  
3*7#  
RGB07  
Example: 3.5 second RGB delay  
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Serial Communication, cont’d  
Control Software for Windows  
The included Extron DVS 204 Control Program for Windows offers another way  
to control the DVS 204 via RS-232 connection in addition to the Simple  
Instruction Set commands. The control program’s graphical interface includes  
the same functions as those on the scaler’s front panel and some additional  
features that are only available through the Windows-based software.  
The control software is compatible with Windows 95/98, Windows NT, and  
Windows 2000. Extron’s DVS 204 Control Program is included with the scaler,  
and updates can be downloaded from the Extron Web site  
(http://www.extron.com).  
Installing the software  
The control program is contained on a set of 3.5-inch diskettes, and it requires  
approximately 2 MB (megabytes) of hard disk space.  
To install the software on the hard drive:  
1.  
2.  
Run SETUP.EXE from the floppy disk.  
Follow the instructions that appear on the screen.  
By default the installation creates a C:\DVS 204 directory, and it places two icons  
(DVS 204 Control Pgm and DVS 204 Help) into a group or folder named “Extron  
Electronics”.  
Using the control program  
Many items found in the DVS 204 Control Program are also accessible via front  
panel controls and the LCD menus described in chapter two. Refer to chapter  
two for details on features and settings. The DVS 204 Help Program provides  
information on settings and on how to use the control program itself. Some  
features, including the miscellaneous options, are only available via this control  
program. These features are described in the sections of this chapter that  
correspond to the parts of the control program where the features are found.  
1.  
To run the control program, double-click on the DVS 204 Control Pgm icon  
in the Extron Electronics group or folder. The Comm menu appears on the  
screen.  
2.  
Click on the comm port that is connected to the DVS 204’s RS-232 port.  
The Extron DVS 204 Control Program windows appear.  
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3.  
Click on the I/O Config button to configure the inputs from the I/O  
Configuration Window.  
Using the help program  
For information on program features, press the F1 computer key, or  
click on the Help menu from within the DVS 204 Control Program, or  
double-click on the DVS 204 Help icon in the Extron Electronics group  
or folder.  
For explanations of buttons or functions, click on the tabs in the help screen to  
reach the desired screen. Use a mouse or the Tab and Enter keys to select a  
button/function. A description and tips on using the program will appear on  
screen.  
DVS 204 • Serial Communication  
3-9  
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Serial Communication, cont’d  
3-10  
DVS 204 • Serial Communication  
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DVS 204  
Appendix  
A
Appendix  
Specifications  
Part Numbers and Accessories  
Firmware Upgrade Installation  
Serial Digital Interface (SDI) Card Installation  
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Appendix  
Specifications  
Video input  
Number/signal type .................. 1 (RGBHV, RGBS, RGsB) pass-through, RGBS, RGBcvS  
1 composite video, S-video, component video (Y, R-Y, B-Y)  
1 S-video, 1 SDI (optional, DVS 204D only)  
1 composite video  
Connectors .................................. (1) 15-pin HD female .............. RGB pass-through, RGBS, RGBcvS  
3 BNC female .......................... component video, S-video, composite video  
1 BNC female .......................... SDI (DVS 204D, DVS 204D 12 V only)  
(1) 4-pin mini DIN female ...... S-video  
1 BNC female .......................... composite video  
Nominal level ............................... 1 Vp-p for Y of component video and S-video, and for composite video  
0.7 Vp-p for RGB and for R-Y and B-Y of component video  
0.3 Vp-p for C of S-video  
Minimum/maximum levels ...... Analog: 0.0 V to 1.0 Vp-p with no offset  
Impedance ................................... 75 ohms  
Horizontal frequency .................. NTSC 3.58, NTSC 4.43, PAL, SECAM  
Vertical frequency ....................... NTSC 3.58, NTSC 4.43, PAL, SECAM  
Resolution range .......................... NTSC 3.58, NTSC 4.43, PAL, SECAM  
Return loss .................................... <-30 dB @ 5 MHz  
DC offset (max. allowable) ......... 1.5 V  
Video processing  
Decoder ......................................... 9 bit digital  
Digitalsampling ........................... 24 bit, 8 bits per color; 13.5 MHz standard  
Colors ............................................ 16.78 million  
Video output  
Number/signal type .................. 1 scaled or pass-through RGBHV, RGBS, RGsB;  
or scaled component video (Y, R-Y, B-Y)  
Connectors .................................. 6 female BNC  
1 female 15-pin HD  
Nominal level ............................... 1 Vp-p for Y of component video  
0.7 Vp-p for RGB and for R-Y and B-Y of component video  
Minimum/maximum levels ...... 0.0 V to 0.7 Vp-p  
Impedance .................................... 75 ohms  
Scaled resolutions ........................ 640x4801,3,4,5,6, 800x6001,3,4,5,6, 848x4801,3,4,5,6, 852x4801,3,4,5,6, 1024x7681,3,4,5,6  
,
1280x7682,5,6, 1280x10241,3,4,5,6, 1360x7651,3,4,5,6, 1365x10241,3,4,5,6  
,
1400x10501,3,4,5,6, HDTV 480p3,5, 576p1,5, 720p3,5, 1080p3,5, and 1080i1,3,5  
1 = at 50 Hz 2 = at 56 Hz 3 = at 60 Hz 4 = at 75 Hz  
5 = locked to the current input’s vertical refresh rate (Accu-RATE Frame  
Lock)  
6 = True Rate  
Sync  
Input type ..................................... (RGBHV, RGBS, RGsB) pass-through, RGBS, RGBcvS  
Output type .................................. RGBHV, RGBS, RGsB  
Standards ...................................... NTSC 3.58, NTSC 4.43, PAL, SECAM  
Input level ..................................... 0 V to 1.0 Vp-p  
Outputlevel .................................. TTL: 5.0 Vp-p, unterminated  
Input impedance .......................... 75 ohms  
A-2  
DVS 204 • Appendix  
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Outputimpedance ....................... 75 ohms  
Max input voltage ........................ 5 Vp-p  
Max. propagation delay .............. 20 ns  
Polarity .......................................... Positive or negative (switch-selectable)  
Control/remote — decoder/scaler  
Serial control port ........................ RS-232, 9-pin female D connector  
Baud rate and protocol ............... 9600 baud, 8 data bits, 1 stop bit, no parity  
Serial control pin configurations 1 = input 1 select  
2 = TX  
3 = RX  
4 = input 2 select  
5 = GND  
6 = input 3 select  
7 = input 4 select  
8 = n/a  
9 = hardwired IR  
Contact closure ............................ 9-pin female D connector (same as RS-232 connector)  
Contact closure pin configurations See pins 1, 4, 6, and 7 above.  
IR controller module ................... Extron IR 901 (optional)  
Program control .......................... Extron’s control/configuration program for Windows®  
Extron’s Simple Instruction Set (SIS™)  
General  
Power  
DVS 204, DVS 204D ......... 100VAC to 240VAC, 50/60 Hz, 30 watts, internal, autoswitchable  
DVS 204/204D 12VDC .... 100VAC to 240VAC, 50/60 Hz, 36 watts, external, autoswitchable; to 12  
VDC,  
3 A power supply. Product requires 2 A.  
Temperature/humidity  
All models ......................... Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing  
DVS 204, DVS 204D ......... Operating: +32 to +113 °F (0 to +45 °C) / 10% to 90%, noncondensing  
DVS 204/204D 12VDC .... Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing  
Rack mount .................................. Yes, with optional rack shelf, part #60-190-01  
Enclosure type .............................. Metal  
Enclosure dimensions ................. 1.75" H x 8.75" W x 9.5" D (1U high, half rack wide)  
4.4 cm H x 22.2 cm W x 24.1 cm D  
(Depth excludes connectors and knobs. Width excludes rack ears.)  
Product weight ............................. 3.3 lbs (1.5 kg)  
Shipping weight ........................... 6 lbs (3 kg)  
Vibration ....................................... ISTA 1A in carton (International Safe Transit Association)  
Listings .......................................... UL, CUL  
Compliances ................................. CE, FCC Class A, VCCI, AS/NZS, ICES  
MTBF ............................................. 30,000 hours  
Warranty ....................................... 3 years parts and labor  
All nominal levels are at 10%.  
Specificationsaresubjecttochangewithoutnotice.  
DVS 204 • Appendix  
A-3  
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Appendix, cont’d  
Part Numbers and Accessories  
Included parts  
These items are included in each order for a DVS 204 scaler:  
Included parts  
Part number  
DVS 204, 204 D, 204 12V, 204 D 12V (1)  
Rubber feet (self-adhesive) (4)  
IEC power cord  
60-442-01, -02, -11, -12  
25-020-02  
Tweeker (small screwdriver)  
DVS 204 User’s Manual  
DVS 406 Windows-based control program  
Accessories  
These items can be ordered separately:  
Accessories  
Part number  
IR 901 remote control  
Rack shelf mounting kit  
SDI video input card  
70-152-01  
60-190-01  
70-168-01  
A-4  
DVS 204 • Appendix  
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Firmware Upgrade Installation  
In some cases, the DVS 204’s firmware may require replacement with an updated  
version. There are three user-replaceable firmware chips: U41 — the main  
microcontroller, U38, and U17. The numbers are printed on the circuit board. We  
recommend that you send the unit to Extron for service and updates.  
Changes to firmware must be performed by authorized service personnel  
only. Some DVS 204 firmware updates must be performed at the  
Extron factory.  
Follow these steps to replace firmware in the scaler.  
1.  
Disconnect the AC or 12 VDC power cord from the DVS 204 to remove  
power from the unit.  
To prevent electric shock or damage, always unplug the DVS 204 scaler  
from the AC or DC power source before opening the enclosure.  
2.  
3.  
Remove the scaler from the rack or furniture.  
Remove the cover of the scaler (the top half of the enclosure) by removing  
the screws, then lifting the cover straight up.  
Remove (4)  
Lift Cover  
Screws from  
Straight Up.  
Top.  
1
2
3
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4
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Do not touch any switches or other electronic components inside the  
scaler. Doing so could damage the scaler. Electrostatic discharge (ESD)  
can damage IC chips even though you cannot feel it. You must be  
electrically grounded before proceeding with firmware replacement. A  
grounding wrist strap is recommended.  
4.  
Locate the firmware chip(s) to be replaced on the circuit board, as shown in  
the following illustration.  
DVS 204 • Appendix  
A-5  
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Appendix, cont’d  
U17  
U38  
U41  
Locating the three firmware IC chips  
5.  
After you are electrically grounded, the U17 IC chip or  
U38 IC chip may be removed by grasping it firmly with  
your fingers and pulling it out, then continuing to step  
8.  
Removal of the U41 IC chip requires a PLCC IC puller  
tool. To remove the U41 chip, align the hooks of a  
PLCC IC puller tool with the slots located in opposite  
ends of the U41 firmware chip.  
6.  
7.  
Insert the hooks into the slots, and squeeze the tool  
gently to grasp the chip.  
Pull the chip straight out  
Align Notches  
of the socket, and set it  
U41  
aside.  
8.  
For U17 and U38, align  
the notch of the new  
firmware chip with the  
notch of the socket in the  
same orientation as the old chip.  
For U41, align the angled corner of the firmware chip with the angled  
corner of the socket.  
9.  
Gently, but firmly, press the chip into place in the socket.  
10. Replace the top cover on the DVS 204 scaler, and fasten it with the screws  
that were removed in step 3.  
11. Rack/furniture mount the scaler, and reconnect the AC or DC power cord.  
A-6  
DVS 204 • Appendix  
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Serial Digital Interface (SDI) Card Installation  
The optional SDI card may be installed in the scaler if it does not already have an  
input for a serial digital interface signal. We recommend that you send the unit  
in to Extron for service and updates.  
Changes to electronic components must be performed by authorized  
service personnel only.  
Follow these steps to install an SDI card in the DVS 204.  
1.  
Disconnect the AC or DC power cord from the DVS 204 to remove power  
from the unit.  
To prevent electric shock, always unplug the DVS 204 scaler from the  
AC power source before opening the enclosure.  
2.  
3.  
Remove the scaler from the rack or furniture.  
Remove the cover of the scaler (the top half of the enclosure) by removing  
the screws, then lifting the cover straight up. See the top cover removal  
diagram in the “Firmware Upgrade Installation” section.  
Do not touch any switches or other electronic components inside the  
scaler. Doing so could damage the scaler. Electrostatic discharge (ESD)  
can damage IC chips even though you cannot feel it. You must be  
electrically grounded before proceeding with any electronic component  
replacement. A grounding wrist strap is recommended.  
4.  
Locate the SDI card standoff located near the middle rear portion of the  
main circuit board (looking from above with the front panel nearest to you).  
SDI connector opening  
SDI card standoff  
5.  
6.  
Remove the adhesive SDI cover from the rear SDI connector opening of the  
scaler and position the SDI card at an angle with the SDI connector  
protruding from the rear SDI connector opening.  
The SDI card has a 20-pin socket on the underside which should align with  
the 20 pins on the main circuit board. Be sure to align the pins properly, in  
DVS 204 • Appendix  
A-7  
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Appendix, cont’d  
order to prevent bending the pins, before pressing the SDI card firmly in  
place against the standoff. The mounting hole on the SDI card should now  
be directly over the standoff.  
20-pin socket on  
back of SDI card  
20-pin connector  
on main board  
7.  
Insert the card’s installation screw through the SDI card’s mounting hole  
and gently tighten it into the standoff.  
8.  
9.  
Install the SDI connector’s hex nut and keep the SDI card from twisting as  
the nut is tightened.  
Replace the top cover on the DVS 204 scaler, and fasten it with the screws  
that were removed in step 3.  
10. Rack/furniture mount the scaler, and reconnect the AC power cord.  
A-8  
DVS 204 • Appendix  
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FCC Class A Notice  
Note: This equipment has been tested and found to comply with the limits for a Class A digital device,  
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection  
against harmful interference when the equipment is operated in a commercial environment. This  
equipment 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.  
Operation of this equipment in a residential area is likely to cause harmful interference, in which case  
the user will be required to correct the interference at his own expense.  
Note: This unit was tested with shielded cables on the peripheral devices. Shielded cables must be  
used with the unit to ensure compliance.  
Extron’s Warranty  
Extron Electronics warrants this product against defects in materials and workmanship for a period of  
three years from the date of purchase. In the event of malfunction during the warranty period  
attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option,  
repair or replace said products or components, to whatever extent it shall deem necessary to restore  
said product to proper operating condition, provided that it is returned within the warranty period,  
with proof of purchase and description of malfunction to:  
USA, Canada, South America,  
and Central America:  
Europe, Africa, and the Middle East:  
ExtronElectronics  
1230 South Lewis Street  
Anaheim, CA 92805, USA  
Extron Electronics, Europe  
Beeldschermweg6C  
3821AHAmersfoort  
The Netherlands  
Asia:  
Japan:  
Extron Electronics, Asia  
135 Joo Seng Road, #04-01  
PM Industrial Bldg.  
Extron Electronics, Japan  
KyodoBuilding  
16 Ichibancho  
Chiyoda-ku, Tokyo 102-0082  
Japan  
Singapore 368363  
This Limited Warranty does not apply if the fault has been caused by misuse, improper handling care,  
electrical or mechanical abuse, abnormal operating conditions or non-Extron authorized modification  
totheproduct.  
If it has been determined that the product is defective, please call Extron and ask for an Applications  
Engineer at (714) 491-1500 (USA), 31.33.453.4040 (Europe), 65.6383.4400 (Asia), or 81.3.3511.7655 (Japan)  
to receive an RA# (Return Authorization number). This will begin the repair process as quickly as  
possible.  
Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk  
of loss or damage during shipment. Returned units must include the serial number and a  
description of the problem, as well as the name of the person to contact in case there are any  
questions.  
Extron Electronics makes no further warranties either expressed or implied with respect to the  
product and its quality, performance, merchantability, or fitness for any particular use. In no event  
will Extron Electronics be liable for direct, indirect, or consequential damages resulting from any  
defect in this product even if Extron Electronics has been advised of such damage.  
Please note that laws vary from state to state and country to country, and that some provisions of  
this warranty may not apply to you.  
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Extron Electronics, USA  
1230 South Lewis Street  
Anaheim, CA 92805  
USA  
Extron Electronics, Europe  
Beeldschermweg 6C  
3821 AH Amersfoort  
The Netherlands  
Extron Electronics, Asia  
135 Joo Seng Road, #04-01  
PM Industrial Building  
Singapore 368363  
Extron Electronics, Japan  
Kyodo Building  
16 Ichibancho  
Chiyoda-ku, Tokyo 102-0082 Japan  
+81.3.3511.7655  
714.491.1500  
+31.33.453.4040  
+65.6383.4400  
www.extron.com  
Fax 714.491.1517  
Fax +31.33.453.4050  
Fax +65.6383.4664  
Fax +81.3.3511.7656  
© 2005 Extron Electronics. All rights reserved.  
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