Extron electronic RGB 202 VS2, RGB 202 VTG, RGB 202 VS SL2 User Manual

User’s Manual

EXTRON ELECTRONICS/RGB SYSTEMS, INC.
1230 South Lewis Street, Anaheim, CA 92805

800.633.9876 714.491.1500 FAX [phone]
USA

EXTRON ELECTRONICS, EUROPE
Beeldschermweg 6C, 3821 AH Amersfoort
+31.33.453.4040 FAX [phone]
The Netherlands

EXTRON ELECTRONICS, ASIA
41B Kreta Ayer Road, Singapore 089003
+65.226.0015 FAX [phone]
Singapore

EXTRON ELECTRONIC INFORMATION
E

XTRON

WEB™: www.extron.com

XTRON

FAX™: 714.491.0192

E
24-hour access — worldwide!

RGB 202xi Interface

Includes

RGB 202 VS SL2

RGB 202 VTG

RGB 202 VS2

68-187-01

Printed in the USA

Precautions

Safety Instructions • English

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

Read Instructions • 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.

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.

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.

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.

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 two 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 Europe, Africa, and the
America, Central Middle East:
America, and Asia:

Extron Electronics, Europe
Extron Electronics Beeldschermweg 6C
1230 South Lewis Street 3821 AH Amersfoort
Anaheim, CA 92805, U.S.A. The Netherlands

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 [phone] (USA), 31.33.453.4040 (Europe), or 65.226.0015
(Asia) 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.

Accessing the Inside

Contents

Changing Jumper Settings

There are three jumpers in the RGB 202xi which can be
changed by the user for special applications. They are:

_ Note of the position of the jumper before changing it.

J23 – TTL colors (3-pins)

1 to 2 = 64 TTL Colors (EGA)
2 to 3 = 16 TTL Colors (CGA)
Open (2 only) = Automatic Detect (Default)
The interface normally produces the proper TTL colors.

J26 – Negative Sync (2-pins)

1 to 2 = Sync negative only.
Open = Automatic sync tracking (Default)

J31 – Video Clamp Time (3-pins)

1 to 2 = Backporch (normal)
2 to 3 = Sync Tip (1µ sec from leading edge)

6. When finished, use the previous page as a guide to put
the cover back on.

7. Set the RGB 202xi for normal operation.

Chapter One • Introduction and Features

Introduction ........................................................................... 1-1

Features .............................................................................. 1-2

Specifications ....................................................................... 1-5

Chapter Two • Rear Panel Connections

BNC Outputs with Auto Sync ................................................ 2-1

Sync Options ........................................................................ 2-1

Remote ................................................................................. 2-3

MBC Power .......................................................................... 2-3

Inputs 1 and 2 ....................................................................... 2-3

Audio Connections ............................................................... 2-4

Termination Switches (DIP 7 and 8) ..................................... 2-4

Laptop, Notebook or Portable Use ....................................... 2-5

Chapter Three • Operation • Controls and Indicators

Operating the RGB 202xi ............................................................. 3-1

Auto Power Indicator ............................................................ 3-1

Level and Boost .................................................................... 3-1

Peak Control ......................................................................... 3-2

Blue Enhance ....................................................................... 3-2

Picture Centering Controls ................................................... 3-3

Scan Rate Indicator .............................................................. 3-4

Input Switch .......................................................................... 3-4

DIP Switch Operation ........................................................... 3-4

Termination Guidelines ......................................................... 3-6

Laptop, Notebook and Portable Applications ........................ 3-7

Chapter Four • RGB 202 Model Differences

RGB 202 VTG ...................................................................... 4-1

RGB 202 VS2 ....................................................................... 4-2

RGB 202 VS SL2 .................................................................. 4-3

Making ShiftLock Cables ...................................................... 4-4

Appendix A • Related Parts and Accessories

Computer-to-Interface Connections ............................................. A-1

Monitor Breakout Cables (MBCs) .........................................A-1

Internal Computer Wiring Kits (ICWKs) ................................ A-1

MBC Buffers ......................................................................... A-1

Partial List of MBCs and ICWKs ...........................................A-3

BNC High Resolution Cables ............................................... A-5

Handbook of Computer Interfacing Vol IV ............................ A-5

Remote Switch Box .............................................................. A-5

Appendix B • Reference Information

Quick Reference Guide ........................................................ B-1

Troubleshooting Tables ......................................................... B-3

Removing the Cover .............................................................B-6

Changing Jumper Settings ................................................... B-7

Page B-7

Extron • RGB 202xi Series • User’s Manual

Extron • RGB 202xi Series • User’s Manual

Page i

Contents

Accessing the Inside

Legend of Icons

The following icons may be used in this manual:

___ Important information – for example, an action or a step

that must be done before proceeding.

___ A Warning – possible dangerous voltage present.

___ A Warning – possible damage could occur.

_ A Note, a Hint, or a Tip that may be helpful.

__ Additional information may be referenced in another

section, or in another document.

Removing the RGB 202xi Cover

Jumpers are set at the factory to allow the RGB 202xi to
detect most video requirements automatically. However,
if it is necessary to change any of these jumpers you
must first remove cover.

1. Turn power off by disconnecting the power cable.

2. Disconnect any other cables that may be in the way.

3. Use a small Phillips screwdriver to remove the four (4)
screws inside each rubber foot. Put these aside.

4. Turn the case upright. The top half of the case is the
cover. Pull upward on the cover to remove it.

User’s Manual Part Number Information

RGB 202xi, 202 VTG, 202 VS2 and 202 VS SL2 User’s Manual

68-187-01

Rev. A, 69-01

Rev B, 79-01

Page 4-4 cable connector

Rev C, 89-05 (for CD), 89-07 (for print)

Updated specs on page 1-5

Update inside cover styles and manual part number.

Rev D, 89-11, page 1-5

Change output video range to 1.2.

Rev E, 08-99, page 2-1

Remote description.

Written and trinted in USA.

Page ii

Extron • RGB 202xi Series • User’s Manual

5. Use the picture on the facing page locate the jumper
that needs to be changed.

Configuration Jumpers

The general illustration here shows an example of a 3-pin
jumper. These are sometimes called “Bergs”. There are
three possible combinations for a 3-pin jumper:

Pins 1 and 2 – Press the jumper onto pins 1 and 2.

Pins 2 and 3 – put the open end of the jumper over pins 2

and 3 and press on.

No connections (Open) – This can be done any way, as

long as no pins are connected. Three different Open
connections are shown here. Connecting one side of
the jumper and leaving the other contact off the end, or
off the side, is a common way to do this. This way, the
jumper is available if it is needed in the future.

Extron • RGB 202xi Series • User’s Manual

Page B-6

Troubleshooting Reference Information

Problem

Auto Power LED
not illuminating.

Probable Cause

1. Incorrect Extron
MBC cable being used.

Solution

1. Check that the MBC cables are
installed correctly.

RGB 202xi, RGB 202 VTG,
RGB 202 VS2 and RGB 202 VS SL2
User’s Manual

Auto Power LED
stays on all the
time.

Video on Data
Display is
hooking, or
bending.

No Vertical Sync.

Computer boots
up black and
white instead of
color.

2. Interface is not
receiving a sync signal
from the computer.

3. Input selection
switch is set to wrong
input.

1. Auto Power defeat
Dip Switch #4 is on.

1. Serration Pulses are
not required.

2. Vertical Sync Pulse
width needs to be
wider.

3. Vertical Shift out of
proper alignment.

1. Interface may be
outputting separate
H&V sync.

1. No Termination to
computer video output
before computer is
turned on.

2. Make sure computer is ON and
MBC cable is properly connected.

3. Change the position of the Input
switch on the Front Panel.

1. Turn Dip Switch #4 OFF.

1. Turn switch #2 ON to remove
Serration Pulses.

2. Turn switch #4 ON to increase
the Vertical Sync pulse width.

3. Adjust Vertical Positioning.

1. Set switch #3 OFF to allow
Auto sync.

1. Turn computer power OFF, set
the appropriate termination switch
(#7 for Input #1 or #8 for Input #2)
ON and re-boot computer.

Chapter One

Introduction

Features

Specifications

The Blue Video is
not the correct
shade of blue for
TTL computer
signal.

VGA signal does
not fill screen
between modes.

Page B-5

1. Blue Enhancement
adjustment is not in the
correct position.

1. Projection device/
polarity not tracking all
changes of VGA
through composite sync
output.

Extron • RGB 202xi Series • User’s Manual

1. Adjusting the Blue Enhance­ment knob counterclockwise to
reduce the Blue Enhancement.

1

1. Set Dip Switch #3 ON and run
separate H&V output to projector
or monitor.

Extron • RGB 202xi Series • User’s Manual

Introduction • Features and Specifications

Reference Information Troubleshooting

About this manual

This manual was written to explain the features,
installation and operation of Extron’s RGB 202xi series of
interfaces. Although the name “RGB 202xi” is used
throughout the manual, it refers to four different interface
models. Chapter 4 covers the differences between the
standard model RGB 202xi and those models with
special features.

Introduction to RGB Interfaces

As you may know by now, an RGB interface provides the
means for getting a computer video output to display on a
large screen. The interface must take the video signals
from the computer and transform them for use by a
projector or data monitor.

In addition to this, the RGB 202xi has many other
enhancement features. This user’s manual provides the
technical information required to install and operate the
RGB 202xi Universal Interface. Some places in this
manual it is simply referred to as the “interface”.

Interface Considerations

As illustrated above, the interface operates between a
computer (or computers) and a video projector.
Computers differ both in the type of video signals as well
as the physical connectors they use.

Adapters – For this reason, a universal interface requires an

adapter to match the physical and electrical connections
of the computer and the interface.

Local Monitor – Another thing that must be considered is

whether the computer's monitor (“local monitor”) will be
used in the application. This is more convenient for the
computer operator, or presenter because it may be
difficult to see the big screen while operating the
computer. If the local monitor is to be used, a Monitor
Breakout Cable (MBC) is required. An MBC adapts the
computer to the local monitor, as well as the interface.

Problem

Double image on
Data Display.

Vertical Jitter of
Displayed text.

Image on Data
Display is dim or
not at full
brightness level.

Image on Data
Display is too
bright.

Unstable image
on Data Display

Severely or
unreadable image

Probable Cause

1. The Horizontal scan
frequency of the
computer may be twice
that of the Data
Display.

1. Computer Source is
Interlaced.

1. Input voltage level is
too low.

2. Double Termination
at that input (1 or 2) of
the RGB 202xi.

1. No Termination for
that input.

2. Output level is too
high.

1. Sync on Green with
high sync levels on
short cable runs.

2. Serration Pulses are
present at the output.

3. Signal not terminated
at projector.

Signal needs horizontal
clamping.

Solution

1. Incompatibility of Data Display
with computer scan frequency.

1. Turn DIP switch #1 ON (LCD
sync processing).

1. Increase level using Level
Control on front panel. Turn the
knob clockwise.

2. Set termination switch (#7 for
Input #1, or #8 for Input #2) on
Rear Panel OFF for High Z.

1. Connect a local monitor to the
Extron MBC cable monitor input
connector (female).
or ­Set termination DIP switch ON
(#7 for Input #1; #8 for Input #2).
or ­See MBC documentation.

2. Adjust the Level/Boost
counterclockwise.

1. Make sure that Peaking Control
is fully ccw for short cable runs.

2. Turn DIP switch (#5) ON to
remove the Serration Pulses.

3. See projector documentation on
termination.

Change Jumper #31 setting (See
page B8.

Page 1-1 Extron • RGB 202xi Series • User’s Manual

Extron • RGB 202xi Series • User’s Manual

Page B-4

Troubleshooting Reference Information

Introduction • Features and Specifications

Due to the number of different types of Data Projectors
and Data Monitors currently on the market, each with
different characteristics, no specific data display device
was used to generate this troubleshooting information. If
you have a concern or would like to know any special or
unusual characteristic of your particular display, please
call Extron.

Problem

No image on Data
Display (projector
or monitor).

Probable Cause

1. Power Connections
not being made.

2. Data Display not set
for Analog signal.

3. Cables not con­nected.

4. Horizontal or Vertical
phase is shifted too far
in one direction.

5. Level Control turned
down too low on
interface.

6. Sync on Green
output from interface.

7. Input select switch
on interface is not set
correctly.

Solution

1. Check to make sure power is
being supplied to the computer,
monitor, interface and Data
Display (and MBC cable if
required).

2. Check to confirm that Data
Display input settings are for
Analog.

3. Check and secure all cable
connections.

4. Turn DIP switch #1 ON to check
centering reference.

5. Adjust Level Control to the
middle position.

6. Set Data Display for an input of
Sync on Green, or turn Dip switch
#2 on to defeat Sync on Green
and #3 ON to use Auto Sync.

7. Make sure that the RGB 202xi
Input Select Switch is in the
correct position (Input #1 for
Analog/TTL, Input #2 for Analog/
ECL signals).

Features

The RGB 202xi provides enhancement features to
improve the performance of the connected presentation
monitor or projector. These features are listed below and
described on the following pages.

• 300 MHz Bandwidth

• 15-150 kHz Compatible

• Level and Boost Control

• Peaking (Sharpness)

• LCD Sync Processing

• Auto Power

• LCD Frequency Readout

• Horizontal Centering Control

• Vertical Centering Control

• Blue Enhance Control

• 2 Universal Inputs

• Input Termination Switches

• Serration Pulse Removal

• Sync Stripping

• Two-Input Switching

• Audio Interface

• Automatic Sync Output: RG

• Internal Power Supply

Features in other RGB 202 models

RGB 202 VTG

• Built-in Video Test Generator

RGB 202 VS2

• Built-in VideoShift™

B, RGBS or RGBHV

s

Page B-3

8. Contrast too low on
data display.

8. Increase contrast adjustment on
monitor or projector.

_ Some monitors and projectors do require specialized

settings with the interface. Therefore, if you experience
any trouble, call Extron Tech Support at 714-491-1500.

Extron • RGB 202xi Series • User’s Manual

RGB 202 VS SL2

• Built-in VideoShift™ and ShiftLock™

__ Operational differences between these models and the

RGB 202xi are covered in Chapter 4.

Extron • RGB 202xi Series • User’s Manual

Page 1-2

Introduction • Features and Specifications

Reference Information Quick Reference Guide

Features Defined

Auto Power – In normal operation, the RGB 202xi is “green”

or in “power saver mode” because it turns on only when it
is needed. If it senses computer sync on its selected
input, the RGB 202xi turns ON. Also, when the selected
input senses no sync from that computer, it turns itself
OFF. The LED lights when the RGB 202xi power is on.

Level and Boost – This control is similar to a contrast

adjustment on a data monitor, which is used to adjust the
brightness and contrast of the displayed image. This
feature is also used to boost the output signal to a
maximum of 1.45 volts peak to peak to compensate for
losses of signal level or picture contrast due to cable
length. Output cable lengths of up to 1000 feet can be
used by adjusting this feature properly. The result is also
dependent on signal frequency.

Peaking (Sharpness) Control – This control is similar to the

sharpness control on a data monitor. Computer signals
will have a sharper image when adjusting the peaking,
regardless of the cable length. The peaking adjustment
compensates for mid and high frequency RGB Video
Bandwidth response in data monitors and projectors and
for signal loss due to cable capacitance.

Vertical Picture Centering (with Memory) – This

adjustment shifts the displayed image vertically on the
monitor or projector screen and remembers the settings
for both Input #1 and Input #2 separately.

Horizontal Picture Centering (with Memory) – This

adjustment is used to position the displayed image from
side to side on the screen. It also remembers the settings
for both Input #1 and Input #2 separately.

Scan Rate Readout – This LCD readout alternately displays

both the horizontal and vertical scan frequencies of the
selected computer signal.

REMOTE

1

2

Rear Panel Operation

Remote – Allows connection of a constant contact switch for remote selection

of Input #1 or #2 — only if Input switch on front panel is in #1 position.

MBC Power (2 connectors) – Connect Power plug(s) from up to 2 MBC

Buffer cables.

Input #1, Analog/TTL – Connect a video cable (or MBC) from any Analog or

TTL source.

Input #2, Analog/ECL – Connect video cable (or MBC) from any Analog or

ECL source.

Audio Input (1 & 2) – Connect to stereo audio sources for Input #1 and for

Input #2 (above).

Audio Output (L & R) – Connect to stereo left & right inputs of an external

audio system.

DIP Switches: (On = press right side of the switch, or away from the printed

switch numbers;
Off = press left side.)
1 - Off = Normal sync processing; On = Use LCD Sync processing

( & become inactive).

2 - Off = Auto Sync detection; On = Auto Sync detection, but

No Sync on Green.
3 - On = Force separate Horizontal & Vertical Sync; Off = Auto Sync.
4 - Off = Auto Power detect; On = Auto Power defeat (forces power On).

5 - Off = Allow Serrations; On = remove Serrations.
6 - Off = Normal vertical sync width;

On = Vertical Sync approximately twice normal width.
7 - Off = High Z, Input #1; On = 75 ý Impedance, Input #1.
8 - Off = High Z, Input #2; On = 75 ý Impedance, Input #2.

Internal Power Supply – A 90-270 Volt, 50/60Hz internal

power supply is a standard feature of the RGB 202xi. No
setup is required for 50/60Hz power sources.

Blue Enhance (TTL) – Allows for mixing just the right

amount of blue video with the green video for displaying
blue text in a more readable blue-green color. This color
mixing affects only the displayed blue colors for TTL
Computer-video signals.

Page 1-3 Extron • RGB 202xi Series • User’s Manual

Extron • RGB 202xi Series • User’s Manual

Page B-2

Quick Reference Guide Reference Information

Front Panel Operation

Auto Power – Senses computer power and automatically turns the

RGB 202xi power ON.

Level Boost – Similar to a contrast control, this control raises and lowers the

output signal level from the original input level. e.g. a VGA input of 0.7v
peak-to-peak (p-p) can be adjusted for an output level of 0.3 to 0.8v p-p
(without boost). Within the boost (red) range, the output can be raised to

1.25v p-p.

Peak Control – Similar to a sharpness control, this control compensates for

mid and high frequency bandwidth response in data monitors and
projectors, and for signal losses due to cable capacitance. A sharper
image will be seen from most computers, regardless of cable length. For
long cables, the setting will probably be above the 50% level. Use your
visual judgement when using this adjustment.

Blue Enhance – Used with TTL signals (Input #1), allows the mixing of blue

with green for displaying text that is easier to read (blue-green color).

V Centering (vertical shift) – Moves image up or down on the display

screen. (Not active if DIP switch #1 is On) Memory stores settings to
keep image centered when switching inputs.

H Centering (horizontal shift) – Moves image left or right on the display

screen. (Not active if DIP switch #1 is On.) Memory stores settings to
keep image centered when switching inputs.

LCD Screen – Alternately displays the horizontal and vertical frequencies of

the selected input.
H LED (red) – Lights when the LCD is displaying the horizontal
frequency of the selected input.
V LED (green) – Lights when the LCD is displaying the vertical
frequency of the selected input.

Input Switch – Used to select Input #1 or #2 (both video & audio) for output

from the RGB 202xi. (If in the #1 position, a constant contact switch may
be connected through the rear panel for remote switching.)

Introduction • Features and Specifications

LCD Sync Processing – Exclusive to Extron, our LCD sync

processing makes the RGB 202xi work with CRT and
LCD based presentation displays.

Input Switch – The RGB 202xi interface can be connected

to the outputs of two computers at the same time, making
it a two-input switcher as well as an interface. The Input
switch is used to select which input source (#1 or #2) will
be displayed on the connected monitor or projector. Both
inputs are universal.

Termination Switches – These switches allow for 75 ohm

termination of the connected computer for either of the
two inputs. With this feature, an external termination
adapter is not required when using an Analog type
computer without an external local monitor (i.e., a
Laptop).

Automatic Sync Stripping – Sync is automatically stripped

off any incoming signal with sync on the red, green and
blue video channels. If desired, it can be added back to
the green output signal by the use of a dip switch, or Auto
Sync output detection.

Auto-Sync Output Detection – Automatically senses the

impedance on each BNC output, determines which ones
are being used and sends the proper sync output.

Audio Interface – The RGB 202xi includes a PC/computer

audio (600 ohm) to line-level audio (balanced) converter.
For computers that have a sound card, the audio
interface will select that audio input together with the
video (audio follow). The audio output can be connected
to an external stereo system.

Two-Input Switching – The RGB 202xi may be used as a

two input (one Analog/ECL and one Analog/TTL)
switcher. Input selecting can be done by the front panel
toggle switch or with an optional external switch plugged
into the rear panel remote connector. Audio input is
switched with video.

Page B-1

Local Monitor Compatibility – Using an MBC (Monitor

Breakout Cable) with the RGB 202xi allows for computer
monitor and large screen display image to operate at the
same time. This allows the presenter, or computer
operator to use the computer's (local) monitor while the
audience watches on the large screen.

Extron • RGB 202xi Series • User’s Manual

Page 1-4Extron • RGB 202xi Series • User’s Manual

Specifications

Input Signal

Output Signal

RGB Video Output (RGB 202 VTG model)

Frequency Range

LCD Scan-Rate Range

RGB Video Bandwidth

Operating Temperature

Introduction • Features and Specifications

Video: Analog 0.3 to 1.45 V p-p

Audio: Connector: 2.5 mm Stereo Jack

Sync: Separate Sync TTL/Analog

Video: Analog .5 to 1.2V p-p

Sync: Auto Sync on Green

Audio: Connector: (2) 2.5 Stereo Jacks

RGB Video 1 v p-p

Peak White 0.7 - 0.714 v p-p above ground

Sync 0.272 - 0.375 v p-p below ground

Horizontal: 15.5 kHz to 150 kHz

Vertical: 40 Hz to 140 Hz

Operating 0

Storage -20

ECL 0.3 to 1.45 V p-p
TTL 2.7 to 7.00 V p-p

Impedance: High Z

Horizontal Sync - Pos,/Neg.
Vertical Sync - Positive/Negative
Composite Sync TTL/Analog Level

Composite Sync on Green Video

Composite Sync

(separate, negative-going)
Separate H and V Sync

Tracks polarity
(or force negative sync via jumper)

Impedance: 600 ohms
Level: Line

(Automatically)

(Automatically)

10 to 150 kHz Horizontal
30 to 200 Hz Vertical

300 MHz (-3dB) Bandwidth

Positive/Negative

0.3V p-p Negative
(video 0.7V p-p positive)

(TTL level, 4V p-p)

(TTL level, 4v p-p)

o

to 50o C (31o to 122o F)

o

to 60o C (-4o to 140o F)

RGB 202xi, RGB 202 VTG,
RGB 202 VS2 and RGB 202 VS SL2
User’s Manual

Appendix B

Reference and Troubleshooting

Quick Reference Guide

Troubleshooting

Removing the Cover

Changing Jumper Configurations

B

Page 1-5

Extron • RGB 202xi Series • User’s Manual

Extron • RGB 202xi Series • User’s Manual

Notes

Introduction • Features and Specifications

Humidity 5% to 95% non-condensing

Power Supply 90-270 Volt (auto-switchable)

Power Dissipation 12 Watts (Nominal)

Enclosure Dimensions

Plastic or Metal 9.75" W x 7" D x 1.75" H

(metric 24.8 W x 17.8 D x 4.5 H cm)

with rear BNCs D = 7.75" (See picture below.)

(metric 19.7 cm)

Weight

Plastic 2 lbs. 4 oz. (1.02 kg)

Metal 2 lbs. 10 oz. (1.2 kg)

Warranty 2 years parts and labor

Page A-5

Extron • RGB 202xi Series • User’s Manual

Extron • RGB 202xi Series • User’s Manual

Page 1-6

Notes

Related Parts and Accessories

BNC High Resolution Cables

Extron recommends High
Resolution BNC cables
with signal frequencies
greater than of 25 kHz or
when using a computer
with a frequency of 15­135 kHz and running distances of 100 feet or more.
Extron High Resolution BNC cables are color-coded and
wrapped in a single jacket, and are listed below:

Cables BNC-4 # BNC-5 # Feet/Meters

BNC-4/5-3'HR 26-210-01 26-260-15 3/0.9
BNC-4/5-6'HR 26-210-02 26-260-01 6/1.8
BNC-4/5-12'HR 26-210-03 26-260-02 12/3.6
BNC-4/5-25'HR 26-210-04 26-260-03 25/7.5
BNC-4/5-50'HR 26-210-05 26-260-04 50/15
BNC-4/5-75'HR 26-210-06 26-260-16 75/23
BNC-4/5-100'HR 26-210-07 26-260-05 100/30
BNC-4/5-150'HR 26-210-08 26-260-12 150/45
BNC-4/5-200'HR 26-210-09 26-260-06 200/60
BNC-4/5-250'HR 26-210-54 26-260-18 250/75
BNC-4/5-300'HR 26-210-53 26-260-14 300/90

_ Bulk cable is available in lengths greater than 300 feet in

increments of 100 feet.

Handbook of Computer Interfacing Vol IV

This 3-ring binder contains detailed information on
computer-video applications, interfaces, scan converters,
as well as the following:

• Computer/Graphic Card cross reference charts

• Presentation Display Cross Reference charts

• Monitor Breakout Cables (MBCs)
– why they are needed and how to use them

• Monitor Identification (ID) Bits and Terminators
– what they do and how to make them work

• Laptop computer commands

• Glossary of terms

Call Extron to order part number 67-038-01.

Remote Switch Box

Remote Switch for the RGB 202xi Rear
Panel Remote jack with a 20’ cable.
The part number is 26-214-01.

Page 1-7 Extron • RGB 202xi Series • User’s Manual Page A-4

Extron • RGB 202xi Series • User’s Manual

Related Parts and Accessories

Monitor Breakout Cables

Extron MBC “Monitor Breakout Cables” feature monitor
loop-through connector for providing local monitor
viewing. Below is a sample listing of Extron’s most
popular MBC and ICWK cables for use with the
RGB 202xi interface. Because this is only a partial listing,
please call Extron for any assistance to interface a
computer that may not be listed.

Part # Cable Name Hor. kHz Ver. Hz

26-108-03 MBC AMIGA HR 15.7 60
26-198-01 MBC Apollo Mono 64.0 60-76
26-018-02 MBC Apple IIGS 15.7 60
26-064-01 MBC Burroughs Color 22.2 60
26-307-01 MBC Cornerstone DP120 104 60
26-176-01 DEC VR Terminals 54 - 69 60
26-262-01 MBC E/Machine Mono 35.61 68
503-066 MBC IBM 3151 27.2 67.5
26-003-01 MBC IBM 3161/63/91/96 Mono 27.0 64.8
26-148-01 MBC IBM 3162 25.9 54.8
26-043-01 MBC IBM 3164/79/92/97 Color 22.31 60
26-227-01 MBC IBM 3178C 15.4 70
26-043-02 MBC IBM 3192 Mono 36.0 60
26-100-01 MBC IBM 3193C 50.6 80
26-058-01 MBC IBM 3194 14" Display 29.6 73
26-109-01 MBC IBM 3194 Mono 29.0 73
26-009-01 MBC IBM 3270PC 23.6 63
70-009-01 MBC IBM 3472/3477 Infowindow Kit 26.37 60
26-055-01 MBC IBM PC Mono (MDA) 18.1 50
26-010-01 MBC IBM PCC (CGA/EGA) 15.7-22 60
26-005-02 MBC IBM PGA HR 31.5 60
26-117-01 MBC IBM PS/2 (Standard VGA Only) 35 60-70
26-162-01 MBC IBM VGA HR (Super VGA) 31.5-72 60-70
26-224-01 LBC IBM VGA HR (Laptop Cable) 31.5-37 60-70
26-176-01 PowerPC (IBM) 31 - 117 60 - 88
26-162-02 MBC IMAGE Adapter/A 31-61 60 or 70
26-018-02 MBC Mac/Quadra/PowerMac HR 35-68 68
26-251-01 MBC Memorex TELEX 1192 27.5 64.5
26-272-01 MBC NCD 14C/17C-CR/19C-G 56-82 70
70-012-01 MBC NCD 15B/16E/19R 58-82 70
26-220-01 MBC NeXt Buffer, Mono 63.0 68
26-283-01 NeXT Color 63 68
26-270-01 MBC RGB H&V (9 Pin to 5 BNC's) Varies
26-213-01 MBC RGBS (9 Pin to 4 BNC’S) Varies
26-018-01 RasterOps/SuperMac 35 - 64 66
26-198-01 MBC SUN/Apollo Mono 61-90 66-76
26-283-01 MBC Sun Sparc/SGI 61-89 66-70
503-072 ICWK DEC VT 320* 18.0 60
70-004-01 ICWK DEC 340 KIT 31.5 60
70-004-03 ICWK DEC VT 340 31.5 60
503-125 ICWK DEC VT 340 PLUS* 31.5 60
503-120 ICWK DEC VT 420* 37.0 60 or 70
503-071 ICWK HP 700/94* 28.6 60
26-029-01 ICWK IBM 3180 20.0 83
70-006-01 ICWK IBM 3476 28.0 60
70-009-01 IBM 3472/3477 Infowindow kit 26.37 60
26-102-03 ICWK MAC Classic RGB (9 pin) 22.2 60
26-026-01 ICWK MAC RGB (9 pin) 22.2 60
26-102-02 ICWK MAC SE RGB (9 pin) 22.2 60
503-085 ICWK Memorex/TELEX 1191* 27.5 65.7
26-043-03 ICWK Memorex C19A 27.5 62.7
26-096-01 ICWK Wsye 50 23.0 60

RGB 202xi, RGB 202 VTG,
RGB 202 VS2 and RGB 202 VS SL2
User’s Manual

Chapter Two

Rear Panel Connections

Computer-Video Inputs 1 and 2

Remote Switch

MBC Power

Audio Input and Output

BNC Outputs

2

Sync Options

Page A-3

Extron • RGB 202xi Series • User’s Manual

Extron • RGB 202xi Series • User’s Manual

Rear Panel Connections

Related Parts and Accessories

Inputs 1 and 2 (Computer-Video)

Analog/TTL – This 9-pin input is for

any TTL Computer with a horizontal
scan frequency of 15-135 kHz. This
is for use with Extron MBC cables
only.

Analog/ECL – This 9-pin input is for

any analog or ECL input computer
source with a horizontal scan
frequency range between 15-135
kHz. This is for use with Extron
MBC cables only.

Pin assignments for the two connectors are:

Pin Input #1 Signals Input #2 Signals

1. Ground Ground

2. Red Prime no connection

3. Red Video Red Video

4. Green Video/Sync Green Video/Sync

5. Blue Video Blue Video

6. Green Prime/Intensity no connection

7. Blue Prime no connection

8. Horizontal Sync H Sync/Comp Sync

9. Vertical Sync Input Vertical Sync

Switching between the two inputs is done by the Front
Panel switch (Chapter 3) or by the optional Remote
connector described above.

MBC Mac/Quadra Buffer (26-339-01) – Buffers all Mac II,

1

Centris, Performa and Quadra computer output signals to
both the computer’s local monitor and the interface. No
other cable is required.

2

MBC RGB Buffer (26-176-01) – Buffers all computer or

Workstation outputs with Analog BNC type outputs from
15-135 kHz. Use the cable included with the computer to
connect to the buffer’s local monitor output and to the
Workstation monitor, but use Extron High Resolution
BNC-4 or BNC-5 style cable (or compatible) to connect
from the computer/workstation to the MBC RGB Buffer.

MBC Sparc Buffer (26-283-01) – Buffers all 13W3

connector type computer output signals to both the
computer’s local monitor and the interface. No other
cable is required. Compatible with Sun, SGI, DEC, NeXT
and many others.

MBC IBM PowerPC Buffer (26-384-01) – Uses 13W3

connector type and buffers computer output signals to
both the computer’s local monitor and the interface. No
other cable is required.

MBC VGA/XGA Buffer (26-338-01) – Buffers all VGA, Super

VGA, XGA, VESA, or XGA-2 computer output signals to
both the computer’s local monitor and the interface. No
other cable is required.

Remote

REMOTE

MBC Power

___ Do not connect any other devices to the MBC power jacks.

Page 2-1

This 3.5 mm jack allows for remote switching between
Input #1 and Input #2. Remote operation requires a
latching switch and the front panel input switch must be
set to Input #1. When the remote switch is closed, input
#2 is selected; when it is open, input #1 is selected.

A 20 ft. cable with a remote switch is available from
Extron as an option. The part number is 26-214-01.

Some of Extron’s MBC High Resolution cables and
buffers require power. For those cables with a miniature
power plug attached, connect the power plug into either
of these two jacks.

Extron • RGB 202xi Series • User’s Manual

Extron • RGB 202xi Series • User’s Manual

Page A-2

Related Parts and Accessories

Rear Panel Connections

Computer-to-Interface Connections

As illustrated below, there are many ways to connect a
computer to an interface, depending on the application.
This section discusses some of the possibilities.

COMPUTER
LOCAL MONITOR

COMPUTER OR PC

RGB 202xi

TWO-INPUT

UNIVERSAL INTERFACE

MBC (Monitor Breakout Cables)

Extron’s MBC monitor Breakout cables feature a monitor
loop-through connector to provide viewing both on the
local monitor and large screen display. MBC cables are
available for most computer manufacturers’ display
adapter cards and are attached directly the computer’s
display monitor output.

ICWK (Internal Computer Wiring Kit)

Extron ICWKs provide interfacing signals for computers
and terminals with no external video display output.
Internal video monitor signals are routed externally to the
computer, usually to a 9-pin connector. From the 9 pin
connector, a short cable is included with the kit for signal
transfer to the Extron interface 9-pin connector input.

MBC Buffers

Extron MBC Buffers isolate the computer’s video signal
and monitor from the Extron RGB 202xi interface, while
maintaining Video Bandwidth to the local monitor and the
interface. An example of an MBC buffer is shown on the
next page. Power is supplied to the buffers by the “MBC
Power” jacks located on the Rear Panel of the RGB 202xi
interface. The page A-3 shows a partial listings of the
most popular buffers; call Extron for a complete list.

HI-Res ECL Buffer (26-177-01) – Buffers all ECL type

signals and is used in conjunction with an MBC cable for
the computer being interfaced.

Audio Connections

The RGB 202xi provides
audio switching (together
with the video input) to
the audio output which is
connected to the user’s
audio equipment. The
user also supplies the
audio cables.

The Audio Interface is a
PC/computer audio (600 ý) to line-level audio (balanced)
converter. If the computer has a sound card, the input
switch on the RGB 202xi will select the audio with the
video (audio follow).

Although the input and output audio connectors are
physically the same, they are used differently. See the
illustration and the following descriptions for the correct
wiring of audio inputs and outputs.

Audio Inputs – Connect the stereo audio sources for Input #1

and Input #2 (above). Each input connector includes
contacts for left and right stereo and a common/ground
connector. Input cables should be wired as follows:

• Stereo left to Tip (+) contact

• Stereo right to Ring (-) contact

• Both commons to Sleeve (Gnd) contact

Audio Output (Left & Right) – There is one audio output,

using separate connectors for left and right channels.
Connect the left and right output jacks to the inputs of an
external audio system. The 3-contact outputs can be
wired for balanced or unbalanced audio.

• For unbalanced audio, use Tip (+) and Sleeve (Gnd).

• For balanced audio, use Tip (+) and Ring (-).

_ Observe polarity when making connections to keep left

and right channels in phase.

Page A-1

Extron • RGB 202xi Series • User’s Manual

Extron • RGB 202xi Series • User’s Manual

Page 2-2

Rear Panel Connections

_ This section describes function of each connector. Rear

Panel DIP switches are covered in Chapter 3.

RGB 202xi, RGB 202 VTG,
RGB 202 VS2 and RGB 202 VS SL2
User’s Manual

REMOTE

BNC Outputs with Auto Sync

Sync Options

1

2

The RGB 202xi converts all computer video to RGB
Analog signals, with outputs on the rear panel BNC
connectors. With all of the DIP switches in the OFF
position, the RGB 202xi is in the “Auto Sync” mode. This
means that it uses the BNC outputs that have an
impedance, by way of the attached cables. For example:

• If BNC connectors R, G and B
have cables attached (with 75ý
impedance) and H/V and V have
none, Auto Sync will use Sync
On Green as output.

• If BNC connectors R, G, B and
H/V have cables attached (with
impedance of 75ý for RGB and
less than 1ký for H/V), and V has
none, Auto Sync will use
Composite Sync as output.

• If BNC connectors R, G, B, H/V
and V have cables attached (with
75ý impedance for RGB and less
than 1ký for H/V and V), Auto
Sync will use Separate Horizontal
and Vertical Sync as output.

The Auto Sync feature can be altered by DIP switches
#1, #2 or #3 for specific sync processing.

Appendix A

Related Parts and Accessories

Computer-to-Interface Connections

MBC (Monitor Breakout Cables)

High Resolution BNC Cables

Partial List of MBCs

Remote Switch Box

Page 2-3

Separate Horizontal and Vertical Sync - Separate
horizontal and vertical sync can be generated by setting
DIP switch #3 to the ON position. (See page 3-5.) When
using separate horizontal and vertical sync, the sync
polarity tracks the incoming polarity changes, unless
jumper 26 is set to force negative sync.

__ See Appendix B for special setup.

Extron • RGB 202xi Series • User’s Manual

A

Extron • RGB 202xi Series • User’s Manual

RGB 202 Model Differences

Rear Panel Connections

Notes

Sync Polarity – VGA, for example, has three modes of

operation. Each of these modes has a different polarity
(positive or negative combinations) configuration. The
RGB 202xi tracks these mode polarity changes and
sends out the polarity exactly as it is came in. Thus, if
horizontal sync comes in positive and the vertical sync is
negative they will go out the same way. This sync
tracking only occurs when using the separate Horizontal
and Vertical sync output option (DIP switch #3) of the
RGB 202xi. (See Page B-8, jumper 26.)

Composite Sync (H/V) vs Sync on Green – Unless the H/V

output is terminated at 1ký or less, output sync will
automatically be on the green channel. Regardless of
termination impedance, composite sync is always present
at (H/HV) output, unless DIP switch #3 (separate H&V) is
ON, or the “V” Sync output is terminated with less than
1ký impedance. In these cases, separate horizontal sync
is present.

Nonstandard Termination – In the professional A/V and

Computer industries, the standard termination impedance
for R, G and B is 75 ý and anything less than 1ký for
sync. However, some data monitors or RGB switchers
may use other termination impedance values. In these
cases, it may be necessary to set Dip switch #2 to the
ON position to defeat Sync on Green. The interface will
then use composite sync (H/V).

_ Also, please note that many data monitors and projectors

do not automatically switch between sync on green and
composite sync (H/V). In these cases, make sure the
monitor or projector is set to the desired input

configuration.

LCD Display Devices – When using an LCD display, or if

the image has jitter, try turning DIP switch #1 ON. This
switch is explained on page 3-4.

__ See Appendix B for quick reference and troubleshooting

information.

__ See Chapter 4 for model differences.

Extron • RGB 202xi Series • User’s ManualPage 4-5

Extron • RGB 202xi Series • User’s Manual Page 2-4

Notes

Wire

Flex-Spring

RGB 202xi Model Differences

Making ShiftLock™ Cables

Extron supplies connectors for making ShiftLock cables;
the user supplies the cable. Twisted pair cable may be
used – up to 50 feet in length.

The illustration below shows the steps for a making a
cable using twisted pair. Do each step for both ends of
the cable. Make as many cables as required.

___ Although the color of the wire is not important, however

you must use the same wire color assignments for each
end of the cable.

1. Unscrew the Metal Case.

2. Identify the contacts, parts and connections.

___ The Plastic Insulator must be inside to prevent electrical

contact with the metal Case.

As shown here, the connectors have three contacts.
However, only the “Tip” and “Ring” contacts are used.

3. Insert the Metal Case (Insulator and flex Spring) over
the cable.

4. Strip the wires and attach them through the holes in the
contacts.

5. Solder both connections.

6. Bend the Tabs around the
Cable Jacket.

7. Press the wires and contacts inward to allow the
Insulator and Metal Case to
slide over easily.

___ Do not allow the contacts to touch each other.

8. Screw the Metal Case
onto the connector.

8

Connect the cables as shown on Page 4-3.

Page 2-5 Extron • RGB 202xi Series • User’s Manual Page 4-4

Extron • RGB 202xi Series • User’s Manual

RGB 202 Model Differences

RGB 202 VS SL2 (VideoShift™ and ShiftLock™)

The VS SL2 model includes both VideoShift™ and
ShiftLock™ features. The VideoShift™ controls are on
the front panel and the ShiftLock™ controls are on the
back panel.

The VideoShift is the same as that described for the VS2
model.

The ShiftLock™
feature allows two
or more RGB 202
VS SL2 units to be
linked together,
such that one of the units controls the VideoShift for all. A
toggle switch on the back panel allows one to be set as
the “Master”. Each of any other units connected must be
set as “Slave”.

_ When the switch is set to “Slave”, the

VideoShift controls for that unit are
disabled.

Two connectors on the back panel
(see right) are used to connect the
Master and Slave(s).

RGB 202xi, RGB 202 VTG,
RGB 202 VS2 and RGB 202 VS SL2
User’s Manual

1

2

MASTERIN OUT

SLAVE

Setup example:

1. The Master unit will have a cable connected from its

“ShiftLock Out” to the
“ShiftLock In” port of the

first Slave. Its toggle
switch must be set to the
“Master” position.

2. The first Slave will have a
cable from its “ShiftLock
Out” to the “ShiftLock In”
of the next Slave. Its
toggle switch must be set
to the “Slave” position.

3. Step #2 will repeat for
each Slave unit, except
that the last Slave (or the
only Slave), will have no
cable in its “ShiftLock Out” connector.

Extron • RGB 202xi Series • User’s ManualPage 4-3

1

MASTERIN OUT

SLAVE

2

MASTERIN OUT

1

SLAVE

2

MASTERIN OUT

1

SLAVE

2

Chapter Three

Operation • Controls and Indicators

Auto Power

Level and Boost

Peaking

Blue Enhance

Vertical and Horizontal Centering

3

Rear Panel DIP Switches

Extron • RGB 202xi Series • User’s Manual

Scan-rate Indicator

Input Switch

Operation • Controls and Indicators

RGB 202xi Model Differences

Operating the RGB 202xi

This chapter covers the function of the controls and
indicators on the RGB 202xi, including some examples on
how they are used.

__ If there are any difficulties setting up for the desired

results, see Appendix B for troubleshooting information.

Auto Power Indicator

This LED lights when the RGB 202xi is powered ON.
“Auto Power” means that the computer signal will
automatically turn the RGB 202xi power on.

If the LED does not illuminate, check for computer
operation as well as cable and power connections.

If DIP switch #4 (rear panel) is On, the Auto Power detect
feature is disabled, forcing the power ON as long as it is
plugged to an active power source.

Level and Boost

This control is similar to a contrast adjustment on a data
monitor or projector. It can be used to increase the
brightness and contrast of the displayed image. Observe
the displayed image while using these adjustments.

Following are some examples
of approximate output levels,
with a computer input signal
(such as VGA) of .7 volts
peak to peak (p-p) and the
output is terminated at 75 ý.

1. With the knob in the minimum (counterclockwise)
position, the voltage output level will be approximately

0.5 volts p-p.

2. With the knob to the end of the level adjustment range
(at the top of the red line), the voltage output level will
be approximately the same level as the input (0.7 volts
p-p for this example).

3. At the full clockwise position (past the red line), the
output can be increased up to 1.45 volts p-p.

RGB 202 VS2 (VideoShift™)

The VS2 model includes Extron’s VideoShift™ feature.
The front panel for the RGB 202 VS2 is shown below.
The section marked “VideoShift™” includes a 3-position
toggle switch to do the following:

• Off – disables the feature.

• Test – enables VideoShift™ at a rate fast enough to see

movement on the screen. Use this position to adjust the
shift range.

• Shift – enables the feature.

When VideoShift™ is enabled, it prevents phosphor
“burn-in” by moving the displayed image around on the
screen. The movement is so slow that it cannot be
detected by the human eye.

VideoShift movement to the right, down, to the left, up,
etc. The distance of the shift, or movement depends upon
the Range setting. The vertical
shift is in number of lines while
the horizontal shift is in units of
time. Approximate settings are:

Minimum setting:

Vertical shift = 8 scan lines
(4 up and 4 down from center)
Horizontal shift = 0.1 µsec.

Mid-range setting:

Vertical shift = 16 scan lines
Horizontal shift = 0.68 µsec.

Maximum setting:

Vertical shift = 32 scan lines
Horizontal shift = 1.28 µsec.

The actual horizontal distance
will depend upon the video
format. Here are two examples
at maximum range:

SGI – 128 pixels
VGA3 – 64 pixels

Extron • RGB 202xi Series • User’s ManualPage 3-1

Extron • RGB 202xi Series • User’s Manual Page 4-2

RGB 202xi Model Differences

Operation • Controls and Indicators

There are three other models of the RGB 202xi, each of
which has additional features. This chapter covers only
those differences; all standard features are in the other
sections.

RGB 202 VTG (Video Test Generator)

This model includes some of the features of Extron’s
Video Test Generators. On the front panel (shown below)
there is a section marked “Mini VTG”. When the toggle
switch marked “202” and “VTG” is in the VTG position, a
test pattern is generated on the output of the RGB 202
VTG. In the “202” position, the interface functions as a
normal RGB 202xi.

In the VTG mode, the rotary switch is used to select one
of four patterns for one of four display types. These are:

Quadrant Format PixelxLine H.kHz V.Hz
1 VGA3 640x480 31.5 60
Position 1 Crosshatch pattern
Position 2 H Pattern, back and white
Position 3 8-level Split Grayscale pattern
Position 4 8-Color Bar pattern
2 MAC13 640x480 35 60
Position 5 Crosshatch pattern
Position 6 H Pattern, back and white
Position 7 8-level Split Grayscale pattern
Position 8 8-Color Bar pattern
3 VESA3 1024x768 48.4 60
Position 9 Crosshatch pattern
Position 10 H Pattern, back and white
Position 11 8-level Split Grayscale pattern
Position 12 8-Color Bar pattern
4 SGI 1280x1024 64 60
Position 13 Crosshatch pattern
Position 14 H Pattern, back and white
Position 15 8-level Split Grayscale pattern
Position 16 8-Color Bar pattern

This Boost range (red) can compensate for losses of
signal level or picture contrast due to increased cable
length. Depending on cable specifications, 50% Boost
(middle of red line) may improve picture quality for cable
lengths shorter than 500 feet for all computer signals
between 15-135 kHz. Set the Boost at 100% (fully
clockwise) for cable lengths longer than 500 feet for all
computer signals 15-135 kHz. Always observe the
displayed image while using this adjustment.

Because the RGB 202xi is capable of driving signal cables
up to 1000 feet long (depending on the signal frequency),
Extron recommends using High Resolution, BNC type
coax cables. Standard RG59 cable is good for NTSC
video and low resolution computer RGB signals, but it
limits video quality on medium and high resolution
computer RGB signals.

Peaking Control

This control is similar to a sharpness adjustment on a data
monitor. A sharper image will result from adding some
peaking adjustment for all computer signals, regardless of
the cable length used. The Peak Control compensates for
mid and high frequency RGB Video Bandwidth response
in data monitors and projectors, as well as for signal loss
due to cable capacitance. On most cable lengths of 250
feet or more, set the Peak Control at 100% for optimum
picture quality (fully clockwise). Always observe the
displayed image while using this adjustment.

Blue Enhance

Because blue text is difficult to read, this adjustment
allows the user to improve on this by changing the color
slightly. The Blue Enhance adjustment allows for mixing
just the right amount of blue information with the green
signal to make the text a more readable, blue-green color.
This only occurs on TTL signals such as IBM 3179, CGA,
and EGA graphic cards. This adjustment will only affect
TTL signals (Input #1). Always observe the displayed
image while using this adjustment.

The patterns are:
Crosshatch H Pattern Grayscale 8-Color

Extron • RGB 202xi Series • User’s ManualPage 4-1

Extron • RGB 202xi Series • User’s Manual Page 3-2

Picture Centering Controls

These two knobs are used to make four
separate adjustments. The RGB 202xi has
memories for each of its two inputs. Turning a
knob not only moves the image but it also
stores that information in the memory for the

selected input. When switching between
inputs, or when power is OFF, each memory keeps the
centering information that was last set. This means that
centering for each of the two inputs need only be set
once for an application.

These two controls have no mechanical limits. Each
centering knob can be turned forever – in either direction.
Any time a Centering Control is turned, with the interface
power on, centering information is being stored. The
limits on how far the picture will move on the screen is
determined by software, and not by any mechanical limits
of the knob. There is no “reset”, you simply readjust.

Many projectors store picture centering information in
their memories based on frequency. When switching
between input sources that have the same frequency, the
image may not be perfectly centered. However, on the
RGB 202xi, centering adjustments are stored for each
input, regardless of frequency, thus assuring accurate
centering when switching between the two inputs.

Vertical (

) – The Vertical Centering adjustment (also called
“Vertical Shift”) is used to move the image up and down
on the screen. Most data monitors and projectors don’t
have this adjustment and those that do may give
inconsistent results when switching between inputs. This
is a useful feature in an interface because Having a
Centering Control on the interface provides an easy way
to eliminate this problem.

Operation • Controls and Indicators

RGB 202xi, RGB 202 VTG,
RGB 202 VS2 and RGB 202 VS SL2
User’s Manual

Chapter Four

RGB 202 Model Differences

RGB 202 VTG

(Video Test Generator)

RGB 202 VS2

_ To use the centering controls on the display device,

instead of those on the interface, set DIP switch #1 on the
rear of the RGB 202

Horizontal ( ) – The Horizontal Centering adjustment (also

called “Horizontal Shift”) is used to move the image from
side to side on the screen. As with Vertical Picture
Centering, this control can also be defeated (turned off)
by setting DIP switch #1 on the rear of the RGB 202xi to
the ON position.

xi

to the ON position.

Extron • RGB 202xi Series • User’s ManualPage 3-3

(VideoShift™)

RGB 202 VS SL2

4

Extron • RGB 202xi Series • User’s Manual

(VideoShift™ and ShiftLock™)

Operation • Controls and Indicators

Operation • Controls and Indicators

Laptop, Notebook or Portable Applications – Video from

these computers may be quite different from standard
PCs or Macs because they were designed to use an LCD
screen instead of a CRT monitor. Here are some
guidelines:

A) When using Laptop, Notebook or portable computers

with VGA outputs, the termination switch must be set to
75 ý for that input (#1 or #2) and all cable connections
must be made before turning the computer power ON
(unless using an LBC VGA cable, or using a VGA
Termination Adapter).

B) Most Laptop, Notebook and portable computers have

external video (CRT or RGB) ports but require special
keyboard commands to access or output the video to
this connector. See the User’s Guide that came with the
computer for instructions to activate this video port or
call Extron for a complete list of all Laptop, Notebook
and Portable keyboard commands.

C) Most portable computers with built-in LCD displays will

be deactivated (shut-off) automatically once the
external video port has been activated.

The illustration below shows how a Laptop computer
could be connected to an RGB 202xi.

Scan Rate Indicator

This LCD readout alternately displays the
horizontal and vertical scan frequencies of the
selected input. To the right of the scan-rate
display, the red LED will illuminate indicating a

horizontal reading, and the green LED will
illuminate indicating a vertical reading. This frequency
readout is displayed in Hertz (Hz).

Input Switch

The RGB 202xi interface can be connected to two
computers at the same time, thus making it a two- input
switcher, as well as an interface. The input switch is used
to select which input source will be displayed on the data
monitor or projector. Used to select Input #1 or #2 (both
video & audio) for output from the RGB 202xi. When in
the #1 position, a constant contact switch may be
connected through the rear panel for remote switching.

DIP Switch Operation

The RGB 202xi uses the "rocker" type of
DIP switches. An example is shown here.
When looking at the switches from the rear:
On = press right side of the switch.
Off = press left side of the switch.

_ The factory setting for all DIP switches is Off.

Page 3-7

Extron • RGB 202xi Series • User’s Manual

Rear Panel DIP Switches

The DIP switches function as follows:

#1 - Sync Processing

Off = Use normal sync processing.
On = Use LCD Sync processing.

Centering controls (
inactive. This switch may also be used:

a. To get a center reference point by

temporarily turning it ON, note the
picture centering, and then turn it OFF
and make centering adjustments.

b. When centering from the display device only.

c. If there is difficulty adjusting the centering.

#2 - Sync On Green Defeat

Off = Auto Sync detection is active.
On = Auto Sync detection, but No Sync on Green.

Extron • RGB 202xi Series • User’s Manual Page 3-4

and ) become

Operation • Controls and Indicators

Operation • Controls and Indicators

#3 - Sync Output

Off = Auto Sync Processing.
On = Force separate Horizontal and Vertical

Sync output, regardless of cable
connections. This feature may be used when
the display device does not have a sync
impedance that is low enough to be detected
by the Auto Sync feature.

#4 - Auto Power Defeat

Off = Auto Power detect
On = Auto Power defeat forces RGB 202xi power On.

This turns the interface on permanently while it is
connected to an active AC power source.

___ This switch must be turned on before computer boot-up

when using any Extron Monitor Breakout Cables (MBCs)
that get power from the RGB 202

#5 - Serration Pulses

Off = Allow Serration pulses on the composite sync

vertical sync interval. If not there, it will create them.
On = Remove serration pulses from the composite sync
vertical sync interval.

xi

.

_ The RGB 202xi is unique in that it can remove serration

pulses, or it can create them if they are not present.

#6 - Vertical Sync Width

Vertical Sync pulse width depends upon the frequency
coming into the RGB 202xi. This switch allows this width
to be increased.

Off = Use normal vertical sync width.
On = Vertical Sync approximately twice normal width.

__ If there are any difficulties getting the desired results, see

Appendix B for additional information.

Termination Guidelines

When connecting an interface to a computer’s video
output, it is necessary to provide the same termination
impedance for which those video circuits were designed.
The RGB 202xi provides the necessary termination for
any application. Following are some guidelines for using
termination switches #7 and #8.

MBC Cables – When using an Extron Monitor Breakout

Cable (MBC) with the computer’s local monitor attached,
set the Termination Switch for that input OFF (High
Impedance). When not using a computer local monitor or
when using a Laptop, set the switch for that input ON for
75 ý termination.

The illustration below shows a PC connected to an
RGB 202xi with a local monitor.

Page 3-5

#7 - Impedance for Input 1

Off = High Impedance for Input #1
On = 75 ý Impedance for Input #1.

_ Use the OFF position when the video source is terminated

elsewhere, such as at the local monitor; use ON if the it is
not terminated elsewhere. If terminated elsewhere, and at
the interface, this is called "double termination" and will
send a weak signal to the display device. Guidelines for
using these switches are on following pages.

8 - Impedance for Input 2

Off = High Impedance for Input #2
On = 75 ý Impedance for Input #2.

The note above also applies for both Inputs.

Extron • RGB 202xi Series • User’s Manual

_ Some computers need Monitor ID bit termination. An

external Termination Adapter may be required.

ICWKs – When using an Extron ICWK (Internal Computer

Wiring Kit), set the switch for that input to the ON position
for 75 ý termination.

MBC Buffers – When using Extron MBC Buffer cables, set

the impedance switch for that input (#7 for Input 1 or #8
for Input 2) to the OFF position for high impedance.

__ Page A-1 has more information on MBCs.

Extron • RGB 202xi Series • User’s Manual Page 3-6