This symbol is intended to alert the user of important operating and maintenance
(servicing) instructions in the literature provided with the equipment.
This symbol is intended to alert the user of the presence of uninsulated dangerous
voltage within the product's enclosure that may present a risk of electric shock.
Caution
ReadInstructions • Read and understand all safety and operating instructions before using the
equipment.
Retain Instructions • The safety instructions should be kept for future reference.
Follow Warnings • Follow all warnings and instructions marked on the equipment or in the user
information.
Avoid Attachments • Do not use tools or attachments that are not recommended by the equipment
manufacturer because they may be hazardous.
Consignes de Sécurité • Français
Ce symbole sert à avertir l’utilisateur que la documentation fournie avec le matériel
contient des instructions importantes concernant l’exploitation et la maintenance
(réparation).
Ce symbole sert à avertir l’utilisateur de la présence dans le boîtier de l’appareil de
tensions dangereuses non isolées posant des risques d’électrocution.
Attention
Lire les instructions• Prendre connaissance de toutes les consignes de sécurité et d’exploitation avant
d’utiliser le matériel.
Conserver les instructions• Ranger les consignes de sécurité afin de pouvoir les consulter à l’avenir.
Respecter les avertissements • Observer tous les avertissements et consignes marqués sur le matériel ou
présentés dans la documentation utilisateur.
Eviter les pièces de fixation • Ne pas utiliser de pièces de fixation ni d’outils non recommandés par le
fabricant du matériel car cela risquerait de poser certains dangers.
Sicherheitsanleitungen • Deutsch
Dieses Symbol soll dem Benutzer in der im Lieferumfang enthaltenen
Dokumentation besonders wichtige Hinweise zur Bedienung und Wartung
(Instandhaltung) geben.
Dieses Symbol soll den Benutzer darauf aufmerksam machen, daß im Inneren des
Gehäuses dieses Produktes gefährliche Spannungen, die nicht isoliert sind und
die einen elektrischen Schock verursachen können, herrschen.
Achtung
Lesen der Anleitungen • Bevor Sie das Gerät zum ersten Mal verwenden, sollten Sie alle Sicherheits-und
Bedienungsanleitungen genau durchlesen und verstehen.
Aufbewahren der Anleitungen • Die Hinweise zur elektrischen Sicherheit des Produktes sollten Sie
aufbewahren, damit Sie im Bedarfsfall darauf zurückgreifen können.
Befolgen der Warnhinweise • Befolgen Sie alle Warnhinweise und Anleitungen auf dem Gerät oder in
der Benutzerdokumentation.
Keine Zusatzgeräte • Verwenden Sie keine Werkzeuge oder Zusatzgeräte, die nicht ausdrücklich vom
Hersteller empfohlen wurden, da diese eine Gefahrenquelle darstellen können.
Warning
Power sources • This equipment should be operated only from the power source indicated on the
product. This equipment is intended to be used with a main power system with a grounded
(neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or
disable it.
Power disconnection • To remove power from the equipment safely, remove all power cords from
the rear of the equipment, or the desktop power module (if detachable), or from the power
source receptacle (wall plug).
Power cord protection • Power cords should be routed so that they are not likely to be stepped on or
pinched by items placed upon or against them.
Servicing • Refer all servicing to qualified service personnel. There are no user-serviceable parts
inside. To prevent the risk of shock, do not attempt to service this equipment yourself because
opening or removing covers may expose you to dangerous voltage or other hazards.
Slots and openings • If the equipment has slots or holes in the enclosure, these are provided to
prevent overheating of sensitive components inside. These openings must never be blocked by
other objects.
Lithium battery • There is a danger of explosion if battery is incorrectly replaced. Replace it only
with the same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer's instructions.
Avertissement
Alimentations• Ne faire fonctionner ce matériel qu’avec la source d’alimentation indiquée sur
l’appareil. Ce matériel doit être utilisé avec une alimentation principale comportant un fil de
terre (neutre). Le troisième contact (de mise à la terre) constitue un dispositif de sécurité :
n’essayez pas de la contourner ni de la désactiver.
Déconnexion de l’alimentation• Pour mettre le matériel hors tension sans danger, déconnectez tous
les cordons d’alimentation de l’arrière de l’appareil ou du module d’alimentation de bureau (s’il
est amovible) ou encore de la prise secteur.
Protection du cordon d’alimentation • Acheminer les cordons d’alimentation de manière à ce que
personne ne risque de marcher dessus et à ce qu’ils ne soient pas écrasés ou pincés par des
objets.
Réparation-maintenance • Faire exécuter toutes les interventions de réparation-maintenance par un
technicien qualifié. Aucun des éléments internes ne peut être réparé par l’utilisateur. Afin
d’éviter tout danger d’électrocution, l’utilisateur ne doit pas essayer de procéder lui-même à ces
opérations car l’ouverture ou le retrait des couvercles risquent de l’exposer à de hautes tensions
et autres dangers.
Fentes et orifices • Si le boîtier de l’appareil comporte des fentes ou des orifices, ceux-ci servent à
empêcher les composants internes sensibles de surchauffer. Ces ouvertures ne doivent jamais
être bloquées par des objets.
Lithium Batterie • Il a danger d'explosion s'll y a remplacment incorrect de la batterie. Remplacer
uniquement avec une batterie du meme type ou d'un ype equivalent recommande par le
constructeur. Mettre au reut les batteries usagees conformement aux instructions du fabricant.
Vorsicht
Stromquellen • Dieses Gerät sollte nur über die auf dem Produkt angegebene Stromquelle betrieben
werden. Dieses Gerät wurde für eine Verwendung mit einer Hauptstromleitung mit einem
geerdeten (neutralen) Leiter konzipiert. Der dritte Kontakt ist für einen Erdanschluß, und stellt
eine Sicherheitsfunktion dar. Diese sollte nicht umgangen oder außer Betrieb gesetzt werden.
Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen, sollten Sie alle
Netzkabel aus der Rückseite des Gerätes, aus der externen Stomversorgung (falls dies möglich
ist) oder aus der Wandsteckdose ziehen.
Schutz des Netzkabels • Netzkabel sollten stets so verlegt werden, daß sie nicht im Weg liegen und
niemand darauf treten kann oder Objekte darauf- oder unmittelbar dagegengestellt werden
können.
Wartung • Alle Wartungsmaßnahmen sollten nur von qualifiziertem Servicepersonal durchgeführt
werden. Die internen Komponenten des Gerätes sind wartungsfrei. Zur Vermeidung eines
elektrischen Schocks versuchen Sie in keinem Fall, dieses Gerät selbst öffnen, da beim Entfernen
der Abdeckungen die Gefahr eines elektrischen Schlags und/oder andere Gefahren bestehen.
Schlitze und Öffnungen • Wenn das Gerät Schlitze oder Löcher im Gehäuse aufweist, dienen diese
zur Vermeidung einer Überhitzung der empfindlichen Teile im Inneren. Diese Öffnungen dürfen
niemals von anderen Objekten blockiert werden.
Litium-Batterie • Explosionsgefahr, falls die Batterie nicht richtig ersetzt wird. Ersetzen Sie
verbrauchte Batterien nur durch den gleichen oder einen vergleichbaren Batterietyp, der auch
vom Hersteller empfohlen wird. Entsorgen Sie verbrauchte Batterien bitte gemäß den
Herstelleranweisungen.
Instrucciones de seguridad • Español
Este símbolo se utiliza para advertir al usuario sobre instrucciones importantes de
operación y mantenimiento (o cambio de partes) que se desean destacar en el
contenido de la documentación suministrada con los equipos.
Este símbolo se utiliza para advertir al usuario sobre la presencia de elementos con
voltaje peligroso sin protección aislante, que puedan encontrarse dentro de la caja
o alojamiento del producto, y que puedan representar riesgo de electrocución.
Precaucion
Leer las instrucciones • Leer y analizar todas las instrucciones de operación y seguridad, antes de usar
el equipo.
Conservar las instrucciones • Conservar las instrucciones de seguridad para futura consulta.
Obedecer las advertencias • Todas las advertencias e instrucciones marcadas en el equipo o en la
documentación del usuario, deben ser obedecidas.
Evitar el uso de accesorios • No usar herramientas o accesorios que no sean especificamente
recomendados por el fabricante, ya que podrian implicar riesgos.
Advertencia
Alimentación eléctrica • Este equipo debe conectarse únicamente a la fuente/tipo de alimentación
eléctrica indicada en el mismo. La alimentación eléctrica de este equipo debe provenir de un
sistema de distribución general con conductor neutro a tierra. La tercera pata (puesta a tierra) es
una medida de seguridad, no puentearia ni eliminaria.
Desconexión de alimentación eléctrica • Para desconectar con seguridad la acometida de
alimentación eléctrica al equipo, desenchufar todos los cables de alimentación en el panel trasero
del equipo, o desenchufar el módulo de alimentación (si fuera independiente), o desenchufar el
cable del receptáculo de la pared.
Protección del cables de alimentación • Los cables de alimentación eléctrica se deben instalar en
lugares donde no sean pisados ni apretados por objetos que se puedan apoyar sobre ellos.
Reparaciones/mantenimiento • Solicitar siempre los servicios técnicos de personal calificado. En el
interior no hay partes a las que el usuario deba acceder. Para evitar riesgo de electrocución, no
intentar personalmente la reparación/mantenimiento de este equipo, ya que al abrir o extraer las
tapas puede quedar expuesto a voltajes peligrosos u otros riesgos.
Ranuras y aberturas • Si el equipo posee ranuras o orificios en su caja/alojamiento, es para evitar el
sobrecalientamiento de componentes internos sensibles. Estas aberturas nunca se deben obstruir
con otros objetos.
Batería de litio • Existe riesgo de explosión si esta batería se coloca en la posición incorrecta. Cambiar
esta batería únicamente con el mismo tipo (o su equivalente) recomendado por el fabricante.
Desachar las baterías usadas siguiendo las instrucciones del fabricante.
Quick Start — DVS 204
Laptop Computer
DVD Player
INPUTS
R-Y
50/60 Hz
1
2
34
Y
/VID
B-Y
/C
H
R
/R-Y
V
G
/Y
S
B
/B-Y
VIDEO
REMOTE
RGB/R-Y,Y,B-Y
RGB
PASS - THRU
RGBcvS
S-VIDEO
SDI
OUTPUTS
100-240V 0.3A
DVS 204 D
VCR
Document Camera
RS-232 Control
LCD Projector
Plasma Display
Installation
Step 1
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 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
Input 2: Composite/S-video/Component
Composite Video
B-Y
/C
Y
R-Y
/VID
2
Input 3: S-video
S-video (Y/C)
R-Y
S-VIDEO
3
Input 4: RGB pass-through/RGBS/
RGBcS
VIDEO
1
Component Video (R-Y, Y, B-Y)
B-Y
/C
Y
/VID
2
R-Y
PASS - THRU/
RGBS/RGBcvS
B-Y
/C
Y
/VID
RGB
Step 5
Plug the DVS 204, and input and output devices
into a grounded AC source, and turn on the input
and output devices.
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.
Application examples
2
4
SDI input
Attach an SDI source to this BNC (204 D
model only).
Step 4
Attach output devices to the scaler.
Rear panel video outputs
Output BNC connectors
RGBHV
OUTPUTS
R
G
/Y
V
G
/Y
V
B
/B-Y
S
B
/B-Y
S
Component Video (R-Y, Y, B-Y)
/R-Y
H
OUTPUTS
R
/R-Y
H
RGsB
Output 15-pin HD connector
You can connect both outputs simultaneously
to two different displays. The sync format is
the same for both outputs.
Serial Digital Interface (SDI) Card Installation ............................................... A-7
All trademarks mentioned in this manual are the properties of their respective owners.
iiDVS 204 • Table of Contents
68-605-01 Rev. C
01 05
DVS 204
Chapter One
1
Introduction
About this Manual
About the DVS 204
Features and Options
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
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.
™
) is a set of simple keystroke commands that
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.
DVS 204 • Introduction1-2
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).
1-3DVS 204 • Introduction
Introduction, cont’d
DVS 204 • Introduction1-4
DVS 204
Chapter Two
Installation and Operation
Menus, Configuration, and Adjustments
Front Panel Security Lockout (Executive Mode)
2
Mounting the Scaler
Rear Panel Features
Front Panel Features
Optimizing the System for a DVD
Image Adjustments
Input Reset
System Reset
IR 901 Infrared Remote Control
Troubleshooting
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
4
O
S
I
T
E
Y
C
U
O
V
L
/
T
N
S
T
V
C
ID
E
E
N
O
T
E
R
R
G
M
B
E
N
U
B
R
T
/
C
O
N
T
S
IZ
E
N
E
X
T
A
D
J
U
S
T
IR
D
IG
IT
D
A
L
V
V
S
ID
2
E
O
0
4
S
C
A
L
E
R
Use 2 mounting holes on
(2) 4-40 x 3/16" Screws
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 halfrack-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.
DVS 204 • Installation and Operation2-2
Application diagram
The diagram shown below is an example of a typical DVS 204 application with
cable connections.
DVS 204
RS-232 Control
E
T
O
M
E
R
Y
B
,
Y
,
Y
-
R
/
B
G
R
S
B
OUTPUT
G
S
R
V
TS
INPU
B
/
G
U
SDI
R
R
H
H
T
-
S
S
S
c
A
B
P
G
R
B-Y
/C
VIDEO
Y
3
1
2
R-Y
LCD Projector
Monitor
DVD Player
Document CameraVCR
Application diagram example of the DVS 204
Laptop Computer
2-3DVS 204 • Installation and Operation
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).
100-240V 0.3A
50/60 Hz
1
2
VIDEO
1
R-Y
3
5
INPUTS
SDI
B-Y
/C
S-VIDEO
Y
/VID
2
4
RGB
PASS - THRU/
RGBS/RGBcvS
34
6
R
/R-Y
H
OUTPUTS
7
DVS 204 D rear panel connectors
POWER
12V 1.5A DC
VIDEO
/C
1
R-Y
S-VIDEO
Y
/VID
2
RGB
PASS - THRU
RGBS/RGBcvS
34
INPUTS
SDI
B-Y
R
/R-Y
H
OUTPUTS
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.
9
REMOTE
B
G
/B-Y
/Y
RGB/R-Y,Y,B-Y
S
V
8
B
/B-Y
S
REMOTE
RGB/R-Y,Y,B-Y
G
/Y
V
AC power connector — Plug a standard IEC power cord into this
1
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.
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
2
input through the female BNC connector.
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.
Composite Video
R-Y
B-Y
/C
Y
/VID
S-video (Y/C)
B-Y
/C
R-Y
2
Y
/VID
2
Component Video (R-Y, Y, B-Y)
R-Y
B-Y
/C
Y
/VID
VIDEO
1
2
DVS 204 • Installation and Operation2-4
Video input 3: S-video — Connect an S-video signal to this 4-pin
4
mini-DIN female connector.
SDI (serial digital interface) input connector — Connect an SDI
5
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
Connect an RGB pass-through (RGBHV, RGBS, RGsB), RGBS,
or RGBcvS video signal to this 15-pin HD connector. The
pass-through signals are not scalable.
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
7
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.
S-VIDEO
RGB
PASS - THRU/
RGBS/RGBcvS
3
SDI
4
R
/R-Y
H
R
/R-Y
H
RGBHV*
OUTPUTS
OUTPUTS
RGsB
G
/Y
V
G
/Y
V
B
/B-Y
S
B
/B-Y
S
Component Video (R-Y, Y, B-Y)
R
/R-Y
H
R
/R-Y
H
RGBS
OUTPUTS
OUTPUTS
S
B
/B-Y
S
B
/B-Y
G
/Y
V
G
/Y
V
Outputs 7 and 8 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.
2-5DVS 204 • Installation and Operation
Installation and Operation, cont’d
RGBS from RGBS pass-through input
R
/R-Y
OUTPUTS
G
/Y
B
/B-Y
H
RGB or HD component (R-Y, Y, B-Y) 15-pin HD video output — Connect
8
V
S
an RGB video display or HD component video display to this connector.
Remote (RS-232/contact closure) 9-pin port — This connector provides for
9
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 functionDescription
1Input #1Contact closure
2TxTransmit data
3RxReceive data
4Input #2Contact closure
5GndSignal ground
6Input #3Contact closure
7Input #4Contact closure
8–No connection
9Hardwired IRIR input
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.
DVS 204 • Installation and Operation2-6
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.
1
234
1
2
3
COL/TNT
BRT/CONT
4
DVS 204 front panel
Input selection buttons
Composite input button — This button selects composite video input
1
(Input 1).
Composite/YC/component input button — This button selects composite
2
video, YC, or component video input (Input 2).
S-video input button — This button selects the S-video input (Input 3).
3
RGB pass-through/RGBS/RGBcvS input button — This button selects the
An SDI input signal can be assigned to any of the inputs (Inputs 1 through
4).
CENTER
SIZE
5
7
6
MENU
NEXT
8
9
ADJUST
DIGITAL VIDEOSCALER
10
12
IR
DVS 204
11
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
5
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.
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
6
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.
2-7DVS 204 • Installation and Operation
Installation and Operation, cont’d
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
7
system in the DVS 204. See the “Menus, Configuration, and Adjustments”
section in this chapter for details.
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
scroll through menu options and make adjustments.
Adjust vertical ( ) knob — In the menu system, rotate this knob to scroll
11
through menu options and make adjustments.
Infrared sensor — This sensor is used to receive infrared (IR) signals from
12
the IR-901 remote control. See the “IR 901 Infrared Remote Control” section
in this chapter.
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.Enter the DVD player’s Setup or Action menu while the disc is stopped.
2.Select a 16:9 aspect ratio.
DVS 204 • Installation and Operation2-8
Menus, Configuration, and Adjustments
Scaler configuration and adjustments can be performed by using the Windowsbased 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 (
knob and Adjust vertical (
make adjustment selections. Refer to the flowcharts in this chapter and to
specific sections for explanations on knob adjustments.
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 (
or the Adjust vertical (
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.
Power
on
EXTRON
DVS204D
Default menus
, ) knobs — In configuration mode, rotate the Adjust horizontal ()
) knob to scroll through submenu options and to
) knob
) knob. Settings and adjustments are stored in
2 sec.
852 x
480 @60
2 sec.
2 sec.
INPUT 1
CMPOSITE
2 sec.
* The No Signal default menu only occurs if
there is no signal present at the currently
selected input connector.
NO
SIGNAL
2 sec.
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.
2-9DVS 204 • Installation and Operation
Installation and Operation, cont’d
Power
on
EXTRON
DVS204D
2 sec.
NEXT
852 x
480 @60
MENU
INPUT
CONFIG
MENU
OUTPUT
CONFIG
MENU
BLANKING
CONFIG
MENU
MEMORY
PRESET
MENU
ADVANCED
CONFIG
MENU
EXIT
MENU
2 sec.
MENU
2 sec.
INPUT 1
CMPOSITE
2 sec.
2 sec.
NO
SIGNAL
* The No Signal default menu only occurs if
there is no signal present at the currently
selected input connector.
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
NOTEInput 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.
NEXT
INPUT 2
COMPNENT
Input 2 video types
• Composite
• S-video
• Component (default)
NEXT
INPUT 4
RGBcvS
Input 4 video types
• RGB pass-through (default)
• RGBS
• RGBcvS
NEXTNEXT
SDI IN
* 1 2 3 <4>
Assign SDI to Input #
• 1, 2, 3, 4, * (none)
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 *.
DVS 204 • Installation and Operation2-10
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
NEXT
Scaler output rates
• See the scaler output table in this
Default: 1024 x 768 @60 Hz
640 x
480 @ 60
chapter for available combinations of
resolutionsand refresh rates.
NEXT
SIGNAL
RGB
Output video types
• RGB (default)
• YUV
• RGsB
NEXT
Select where to output composite sync
• H (default) – outputs horizontal sync through the "H" BNC
• HV – outputs composite sync through the "H" BNC
NOTESee the section "RGB pass-through" under the
section of this chapter for further details.
NEXTNEXT
H FORMAT
<H> HV
H SYNC V
NEG POS
Sync polarity combinations
• H-/V- (default)
• H-/V+
NOTE Thissubmenu is only active if RGB
isselected as the output video type.
If the signal type wasspecified as
RGsB or YUV in the previoussubmenu,
the sync polarity submenu will not display.
• H+/V-
• H+/V+
Rear Panel Features
2-11DVS 204 • Installation and Operation
Installation and Operation, cont’d
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 (
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.
) knob while in this submenu to select one of the
Available Scaler Output Resolutions and Rates
Resolution 50 Hz 56 Hz 60 Hz 75 Hz Lock @ 50/60* True 72/100*
640 x 480 X X X X X
800 x 600 X X X X X
848 x 480 X X X X X
852 x 480 X X X X X
1024 x 768 X X X X X
1280 x 768 X X X
1280 x 1024 X X X X **
1360 x 765 X X X X X
1365 x 1024 X X X X **
1400 x 1050 X X X X X
HDTV 480p X X
HDTV 576p X X
HDTV 720p X X
HDTV 1080p X X
HDTV 1080i 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 (
DVS 204 • Installation and Operation2-12
) 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.
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 (
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
MENU
BLANKING
CONFIG
NEXT
TOP BTM
000 000
) or Adjust
NEXT
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 (
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.
Top and bottom blanking
• Top blanking ranges from 000 (default)
to 127
• Bottom blanking ranges from 000 (default)
to 127
) knob to adjust the bottom blanking from 0 to 127 lines. The
2-13DVS 204 • Installation and Operation
Installation and Operation, cont’d
EXTRON
DVS204D
MENU
INPUT
CONFIG
MENU
OUTPUT
CONFIG
MENU
BLANKING
CONFIG
MENU
MEMORY
PRESET
NEXT
IN3 SAVE
<N/A> 1 2 3
NEXT
IN3 CLR
<N/A> 1 2 3
NEXT
Saving (SAVE) memory presets
• Save the currently selected input's
sizing and centering information
• Up to 3 presets per input can be
selected < > (N/A is the default) and
saved.
• Save a preset by pressing the NEXT
button.
Clearing (CLR) memory presets
• 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 clea
red.
• 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.
DVS 204 • Installation and Operation2-14
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.
EXTRON
DVS204D
MENU
INPUT
CONFIG
MENU
OUTPUT
CONFIG
MENU
BLANKING
CONFIG
MENU
MEMORY
PRESET
MENU
ADVANCED
CONFIG
NEXT
DETAIL
DETAIL
016
016
NEXT
FILTER
OFF <ON>
NEXT
BLUEMODE
<OFF> ON
NEXT
AUTOSW
<OFF> ON
NEXT
Either Adjust knob is used
to adjust the submenus
Detail (sharpness)
Detail (sharpness)
• Ranges from 0 to 63.
• Ranges from 0 to 63.
(default is 16)
(default is 16)
Filter
• On (default)
• Off
Display blue and sync only
• On
• Off (default)
Autoswitch mode
• On
• Off (default)
NEXT
RGB DLY
0.0 SEC
NEXT
2:2 PLDN
<OFF> ON
NEXT
ENH MODE
<OFF> ON
RGB delay time
• 0.0 to 5.0 seconds
in 0.5 sec. increments.
(default is 0.0)
PAL film mode (2:2 pulldown detection)
• On
• Off (default)
Enhanced mode (gain control)
• Off (default)
• On
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”.
2-15DVS 204 • Installation and Operation
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 (
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.
) or Adjust vertical ( ) knob to specify this
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 (
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.
) or Adjust vertical ( )
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 (
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.
) or Adjust vertical ( )
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 to specify this mode as “On” or “Off”.
) knob or Adjust vertical
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 (
blanking period (RGB delay time) from 0 seconds (default) to 5 seconds in
0.5 second steps.
) knob or Adjust vertical ( ) knob to select the
DVS 204 • Installation and Operation2-16
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
DVS204D
MENU
INPUT
CONFIG
MENU
BLANKING
CONFIG
MENU
MEMORY
PRESET
MENU
ADVANCED
CONFIG
MENU
EXIT
MENU
MENU
NEXT
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.
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.
Power
on
1.Press the input selection button of the input you wish to adjust.
2.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.
EXTRON
DVS204D
852 x
2 sec.
480 @60
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.
2 sec.
Input
selection
button
INPUT 3
S-VIDEO
COL/TNT
Col Tint
128 114
2 sec.
INPUT 1
CMPOSITE
2 sec.
* The No Signal default menu only occurs if
there is no signal present at the currently selected input connector.
NO
SIGNAL
2 sec.
2-17DVS 204 • Installation and Operation
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 (
counterclockwise will increase or decrease, respectively, the horizontal
sizing. Rotating the vertical Adjustment knob (
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).
) clockwise or
) clockwise or
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.
DVS 204 • Installation and Operation2-18
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.
EXTRON
DVS204D
2 sec.
10 sec.
timeout
852 x
480 @60
Press for
2 seconds*
CENTER
COL/TNT
EXE MODE
ENABLED
2 sec.
INPUT 1
CMPOSITE
2 sec.
* The No Signal default menu only occurs if
there is no signal present at the currently
selected input connector.
NO
SIGNAL
2 sec.
EXTRON
DVS204D
2 sec.
10 sec.
timeout
Disable Executive Mode
852 x
480 @60
Press for
2 seconds*
CENTER
COL/TNT
EXE MODE
DISABLED
2 sec.
2 sec.
INPUT 1
CMPOSITE
2 sec.
2 sec.
NO
SIGNAL
* The No Signal default menu only occurs if
there is no signal present at the currently
selected input connector.
2-19DVS 204 • Installation and Operation
Installation and Operation, cont’d
DVS Remote
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
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.
DVS 204 • Installation and Operation2-20
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.Be prepared to backtrack in case the action taken doesn’t solve the problem.
3.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.Try simplifying the system by eliminating components that may have
introduced the problem or made it more complicated.
5.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.
ProblemCauseSolution
No image appears.The input signal isAttach an input device that is
The image is frozen.Freeze mode is on.Deactivate freeze mode.
The image is flashing.The scaled outputChange the scaled output to a
The image is green.The output syncTurn off sync on green.
The image is too soft.The detail levelChange the detail level.
incompatible.compatible with NTSC 3.58,
NTSC 4.43, PAL, or SECAM.
Freeze mode wasDeactivate freeze mode
entered when the
image was black.
The scaled outputChange the scaled output to a
rate is too high forcompatible resolution.
the display.
If that does not work, unplug the
power cord from the scaler, then
plug it back in.
rate is too high forcompatible resolution.
the display.
is configured for
sync on green.
needs to be
changed.
2-21DVS 204 • Installation and Operation
Installation and Operation, cont’d
DVS 204 • Installation and Operation2-22
DVS 204
Chapter Three
3
Serial Communication
RS-232 Programmer’s Guide
Control Software for Windows
Serial Communication
DB9 Pin Locations
Female
51
96
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 functionDescription
1Input #1Contact closure
2TxTransmit data
3RxReceive data
4Input #2Contact closure
5GndSignal ground
6Input #3Contact closure
7Input #4Contact closure
8–No connection
9Hardwired IRIR input
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
C hn
The DVS 204 sends this response when an input is switched.
(where X1 is the input number)
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.
DVS 204 • Serial Communication3-2
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)
•= Space
= Escape key
Esc
X1
= Specific input number (0 through 4)
0 = no input
1 = input 1, 2 = input 2, and so forth
Enable (lock image adjustments)1XExe1 Lock front panel adjustments;
adjust image via RS-232 only.
View the executive mode statusXExe
Example:XExe0
Show executive mode status.
Firmware version, part number & information requests
Query firmware version numberQVer X8 Show the controller firmware
version.
Request part numberNN60-442-0_Show the scaler’s part #.
Request general info.I(See below)Show the scaler’s status.
X12
CX1•TypX4•Std
•Pre
X19
•SdiX1
Zap (reset to default settings)
Zap image adjustments/controls
Zap all DVS 204 settings/memories
Esc
zIZapI Reset the image adjustments
to factory settings.
Esc
zXXXZapXXX Reset everything: all settings
and adjustments to the factory
default.
DVS 204 • Serial Communication3-6
The syntax for setting a special function is X? * X! # where X? is the function number and X! is the
value. To view a function’s setting, use X?# where X? 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
CommandASCII Command Response
(host to scaler)(scaler to host)and additional descriptions
1 = 0.5 seconds, 2 = 1.0
seconds, ... in ½ second steps
up to 10 = 5.0 seconds
Example:3*7#RGB07Example: 3.5 second RGB delay
3-7DVS 204 • Serial Communication
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.Run SETUP.EXE from the floppy disk.
2.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.
DVS 204 • Serial Communication3-8
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.
3-9DVS 204 • Serial Communication
Serial Communication, cont’d
DVS 204 • Serial Communication3-10
DVS 204
Appendix
A
Appendix
Specifications
Part Numbers and Accessories
Firmware Upgrade Installation
Serial Digital Interface (SDI) Card Installation
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
Warranty ....................................... 3 years parts and labor
®
All nominal levels are at ±10%.
Specifications are subject to change without notice.
A-3DVS 204 • Appendix
Appendix, cont’d
Part Numbers and Accessories
Included parts
These items are included in each order for a DVS 204 scaler:
Included partsPart number
DVS 204, 204 D, 204 12V, 204 D 12V (1) 60-442-01, -02, -11, -12
Rubber feet (self-adhesive) (4)25-020-02
IEC power cord
Tweeker (small screwdriver)
DVS 204 User’s Manual
DVS 406 Windows-based control program
Accessories
These items can be ordered separately:
AccessoriesPart number
IR 901 remote control70-152-01
Rack shelf mounting kit60-190-01
SDI video input card70-168-01
DVS 204 • AppendixA-4
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.Remove the scaler from the rack or furniture.
3.Remove the cover of the scaler (the top half of the enclosure) by removing
the screws, then lifting the cover straight up.
Lift Cover
Straight Up.
1
2
3
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Remove (4)
Screws from
To p.
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.
A-5DVS 204 • Appendix
Appendix, cont’d
U17
U41
U38
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.Insert the hooks into the slots, and squeeze the tool
gently to grasp the chip.
7.Pull the chip straight out
of the socket, and set it
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.
Align Notches
U41
DVS 204 • AppendixA-6
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.Remove the scaler from the rack or furniture.
3.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.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.
6.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
A-7DVS 204 • Appendix
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.Install the SDI connector’s hex nut and keep the SDI card from twisting as
the nut is tightened.
9.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.
DVS 204 • AppendixA-8
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,Europe, Africa, and the Middle East:
and Central America:
Extron ElectronicsExtron Electronics, Europe
1230 South Lewis StreetBeeldschermweg 6C
Anaheim, CA 92805, USA3821 AH Amersfoort
The Netherlands
Asia:Japan:
Extron Electronics, AsiaExtron Electronics, Japan
135 Joo Seng Road, #04-01Kyodo Building
PM Industrial Bldg.16 Ichibancho
Singapore 368363Chiyoda-ku, Tokyo 102-0082
Japan
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
to the product.
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.
www.extron.com
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
USA
714.491.1500
Fax 714.491.1517
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort
The Netherlands
+31.33.453.4040
Fax +31.33.453.4050
Extron Electronics, Asia
135 Joo Seng Road, #04-01
PM Industrial Building
Singapore 368363
+65.6383.4400
Fax +65.6383.4664