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 den Benutzer auf wichtige
Anleitungen zur Bedienung und Wartung
(Instandhaltung) in der Dokumentation hinweisen,
die im Lieferumfang dieses Gerätes enthalten ist.
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 Sicherheitsanleitungen sollten
aufbewahrt werden, damit Sie später 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 Stift oder Kontakt ist für einen Erdschluß, und stellt eine
Sicherheitsfunktion dar und sollte nicht umgangen oder außer Betrieb gesetzt
werden.
Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen,
sollten Sie alle Netzkabeln aus der Rückseite des Gerätes oder aus dem DesktopStrommodul (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. Im I nneren des Gerätes sind keine Teile
enthalten, die vom Benutzer gewartet werden können. Zur Vermeidung eines
elektrischen Schocks versuchen Sie in keinem Fall, dieses Gerät selbst zu warten,
da beim Öffnen oder Entfernen der Abdeckungen die Gefahr eines elektrischen
Schlags 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 nur durch diegleiche oder einen vergleichbaren Batterietyp, der
auch vom Hersteller empfohlen wird. Entsorgung der verbrauchten 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:
Extron Electronics
1230 South Lewis Street
Anaheim, CA 92805, U.S.A.
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 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 that some provisions of this
warranty may not apply to you.
Multi Type Connector Architectural Adapter Plates............B-5
Single Type Connector Architectural Adapter Plates........... B-6
All trademarks mentioned in this manual are the properties of their respective
owners.
xixi
xi, RGB 168
xixi
xixi
xi Table of Contents
xixi
68-550-01 A
Printed in the USA
03 01
iRGB 138
Table of Contents, cont’d
RGB 138
xixi
xi, RGB 168
xixi
Chapter One
xixi
xi
xixi
1
Introduction
About This Manual
About the RGB 138xi and RGB 168xi
Features
ii
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Table of Contents
xixi
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Introduction
xixi
Introduction, cont’d
Introduction
About This Manual
This manual contains information about the RGB 138xi and
RGB 168xi universal analog interfaces and on how to
operate and configure them. Unless otherwise specified,
references to “the interface” refer to the features or
operation of both models.
About the RGB 138
The RGB 138xi and RGB 168xi are computer-video and
stereo audio interfaces with 300 MHz (-3dB) video
bandwidth. These interfaces have a horizontal frequency
range of 15 kHz to 125 kHz, so they can be used with any
type of analog computer signal, including those from VGA,
SVGA, XGA, SXGA, UXGA-2, Mac, Quadra, Sun, and SGI
computers.
Features
This section highlights the main features of the RGB 138xi
and RGB 168xi interfaces. See the installation chapter for a
detailed description of front and rear panel features.
xx
RGB 138
ii
x
i and RGB 168
xx
ii
Internal power supply — Use standard IEC power cords.
Front panel AC outlet — Peripherals or laptop computers
can be plugged into the unswitched front panel AC
outlet for a convenient power connection. This
feature is not available in Europe.
Furniture and rack mountability — The RGB 138xi and
RGB 168xi can be mounted under a desk or podium
with optional hardware, or they can be mounted in a
rack or through a desk or other furniture with
included vertical mounting brackets.
Active stereo audio — Unbalanced stereo audio input via a
front panel jack is output as balanced, line level
stereo audio on the rear panel captive screw
connector.
Horizontal shift control — Both models feature front
panel horizontal centering control.
Sync stripping — Incoming sync will be stripped from the
red, green and blue signals.
RGBHV, RGBS or RGsB output — RGBHV can be output
simultaneously with RGBS. Sync on green (RGsB)
output can be DIP switch selected.
xixi
xi and RGB 168
xixi
xx
ii
x
i features
xx
ii
xixi
xi
xixi
Advanced Digital Sync Processing™ (ADSP™) — ADSP
Gain/peaking control — To compensate for signal
Serration pulse — This feature allows serration pulses to
Pass-through connectors — A wide assortment
RGB 138
MBC power jack — The power connector of a buffered
Vertical shift control — The RGB 138xi lets you adjust
75 ohm video termination — 75 ohm video termination
RGB 168
Buffered local monitor output — A 15-pin HD female
ID bit termination — Two front panel DIP switches
allows sync processing operations, such as horizontal
centering, to occur without affecting the signal’s sync
timing. This allows horizontal centering to be
applied to signals that are output to digital display
devices such as LCD projectors, DLP projectors and
plasma displays. A rear panel DIP switch allows an
alternative, Digital Display Sync Processing™
(DDSP™), to be used instead.
degradation caused by long cable lengths, use this
rear panel toggle switch to increase output voltages.
either be present or not present at the output.
Serration pulses are required for some displays.
of architectural adapter plates is available for
installation on these interfaces to allow convenient
pass-through A/V connections.
xixi
xi features
xixi
monitor breakout cable can be plugged directly into
the front panel jack on this interface.
vertical centering with a front panel knob.
can be selected from a rear panel DIP switch.
xi xi
xi features
xi xi
connector provides a front panel buffered output for
a local monitor.
provide ID bit termination on pins 4 and/or 11 of the
local monitor output.
1-2
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Introduction
xixi
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Introduction
xixi
1-3
Introduction, cont’d
RGB 138
xixi
xi, RGB 168
xixi
Chapter Two
xixi
xi
xixi
2
1-4
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Introduction
xixi
Installation and Operation
Installation Overview
Front Panels
Rear Panels
Setting Internal Jumpers
Installing Adapter Plates
Mounting the Interfaces
Cabling
Troubleshooting
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
Installation and Operation, cont’d
Installation and Operation
Installation Overview
This is an overview of the installation process. You will find
detailed installation instructions in this chapter .
To install and set up the RGB 138xi or RGB 168xi for
operation, follow these basic steps:
Turn all of the equipment off. Make sure that the
1
computer, the interface and the output device(s)
(projector or display monitor, and local monitor) are
all turned off and disconnected from the power
source.
Set internal jumpers for sync polarity and sync pulse
2
width. See “Setting Internal Jumpers” in this chapter.
Install optional adapter plates for pass-through A/V
3
connections. See “Installing Adapter Plates” in this
chapter.
Install the rubber feet for tabletop use, or install the
4
appropriate brackets and furniture or rack mount the
interface. See “Mounting the Interfaces” in this
chapter.
Attach the input (computer) and output (display, local
5
monitor and audio) cables. See “Cabling” in this
chapter.
Set the DIP and toggle switches. Use the “Front
6
Panels” and “Rear Panels” sections of this chapter as
a guide.
Connect power cords and turn on the devices in the
7
following order: output devices (projector, monitors,
speakers) and input device (computer).
The image should now appear on screen, and sound
8
should be audible. If not, ensure that all devices are
plugged in and receiving power. Check the cabling
and switch settings, and make adjustments as
needed.
Front Panels
This section will familiarize you with the front panel
features and the options for making connections and
changing settings.
Setting DIP switches
The DIP switches on the front panel of the RGB 168xi and
on the rear panels of the RGB 138xi and the RGB 168xi may
be either the rocking type or the sliding type.
12
RGB 138
AUDIOANALOG/ECL
1357
2
xixi
xi front panel
xixi
INPUTS
MBC
H. SHIFTV. SHIFT
POWER
4
1
2
3
2
To set rocking type DIP switches, use a
3
41
small screwdriver to depress the
appropriate end of each switch.
3
4
T o set sliding type DIP switches, use a small
screwdriver to slide (push) the switch to the
On/closed or Off/open position.
RGB 138
UNIVERSAL INTERFACE W/ADSP
MIN/MAX
8
UNSWITCHED
100-240 0.5A MAX.
96
2-color power/signal LED — This LED lights amber
to indicate that power is on only. It lights green to
indicate that power is on and a video signal is also
present.
Audio input jack — This 3.5 mm stereo input jack
accepts an unbalanced stereo audio input. See
“Cabling” in this chapter for wiring instructions.
9-pin D male analog video input connector
2-2
RGB 138
Refer to “Troubleshooting” in this chapter, then call
Extron’s customer support hotline, if needed.
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
RGB 138
MBC buffer power jack — This audio-style 2.5 mm
4
power jack provides power for a buffered monitor
breakout cable.
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
(Continued)
2-3
Installation and Operation, cont’d
5
6
7
8
9
RGB 168
Horizontal shift control knob — This control adjusts
the horizontal centering of the remote output
display.
The horizontal and vertical shift controls have no
mechanical limits to rotation. When the minimum
or maximum limit of the control is reached, the
picture will cease to move on screen, and the
MIN/MAX indicator LED will light red.
If the DDSP™ DIP switch is set to On, the
horizontal and vertical shift controls are disabled.
Vertical shift control knob — This control adjusts the
vertical centering of the remote output display. See
the notes above for horizontal shift control.
MIN/MAX indicator LED — This LED lights red
whenever the lower or upper limits of the horizontal
or vertical shift controls are reached.
Optional input architectural adapter plates (AAP) —
Up to four adapter plates for pass-through audio/
video connections can be attached at one time to the
interface. See the “Installing Adapter Plates” section
in this chapter for installation instructions.
AC power output connector — An unswitched
standard IEC AC power connector lets you connect a
peripheral device that requires power. This feature is
not available in Europe.
xixi
xi front panel
xixi
Analog video input 15-pin HD female connector
3
ID bit termination DIP switches — These switches
4
provide proper ID bit termination when a
ID PIN 4
ID PIN 11
local monitor is not connected to the
interface’s buffered local monitor output.
DIP switch 1 connects pin 4 to ground.
DIP switch 2 connects pin 1 1 to ground.
ON — Set both switches (ID BIT 4 and
ID BIT 11) to On if no local monitor is
connected.
OFF — Set both switches to Off if a local
monitor will be attached to the interface.
Buffered local monitor output 15-pin HD female
5
connector — This allows output to a local monitor.
Set the ID bit DIP switches to On if this connector is
not used.
Horizontal shift control knob — This control adjusts
6
the horizontal centering of the remote output
display.
The horizontal shift control has no mechanical limits
to rotation. When the minimum or maximum limit
of the control is reached, the picture will cease to
move on screen, and the MIN/MAX indicator LED
will light red.
If the DDSP DIP switch is set to On, the horizontal
shift control is disabled.
2-4
INPUTS
AUDIOANALOG
135
26
RGB 138
xixi
xi, RGB 168
xixi
ID PIN 11
4
2-color power/signal LED — This LED lights amber
1
H. SHIFT
MIN/MAX
7
89
RGB 168
UNIVERSAL INTERFACE W/ADSP
BUFFERED LOCAL
MONITOR OUTPUT
ID PIN 4
to indicate power On only. It lights green to indicate
that power is On and a video signal is also present.
Audio input jack — This 3.5 mm stereo input jack
2
accepts an unbalanced stereo audio input.
xixi
xi Installation and Operation
xixi
UNSWITCHED
100-240 0.5A MAX.
RGB 138
MIN/MAX indicator LED — This LED lights red
7
whenever the lower or upper limits of the horizontal
or vertical shift controls are reached.
Optional architectural adapter plates — Up to four
8
adapter plates for pass-through audio/video
connections can be attached at one time to the
interface. See the “Installing Adapter Plates” section
in this chapter for installation instructions.
AC power output connector — An unswitched
9
standard IEC AC power connector allows you to
connect a peripheral device that requires power. This
feature is not available in Europe (RGB 168xi Int) .
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
2-5
Installation and Operation, cont’d
Rear Panels
RGB 138
100-240 50/60 Hz 0.5A
1257264
xixi
xi and RGB 168
xixi
DIP switch 4 controls input termination in the
RGB 138xi and is a spare in the RGB 168xi.*
3
AC power input connector — Connect a standard
1
IEC AC power cord here for power
input (100VAC to 240VAC, 50/60 Hz).
Cable access openings — Cables attached to the
2
front panel A/V pass-through architectural adapter
plates exit the enclosure here. Clamp cables in place
with the supplied hardware.
Optional output architectural adapter plate — Front
3
panel input AAP A/V connectors can be wired here
to pass-through output connectors.
3-position gain/peaking switch — Use this toggle
4
switch to compensate for signal degradation caused
by long (over about 125 feet) cable lengths. Choose
the setting that provides the best image on the
output display device. Select from these options:
• Unity (no gain or peaking) — The output level is
the same as that of the input and with no
added peaking.
• 50% — This setting increases the output signal
level and adds 50% of the maximum peaking
to the signal.
• 100% — This setting increases the output signal
level and adds 100% of the maximum peaking
to the signal.
If the signal cable between the interface and the
display device is shorter than 125 feet, and the gain/
peak switch is set to a setting other than unity, the
image may be overly bright (overcompensated).
xixi
xi rear panel
xixi
GAIN/
PEAK
SOG
DDSP
SERR
SPARE
100%
UNITY
50%
RHGVB
OUTPUT
If the edges of the image seem to exceed their
boundaries or if thin lines and sharp edges look
thick and fuzzy, try changing the gain/peak setting.
DIP switches — Three of the four DIP switches on
5
the rear panels are common to both the RGB 138xi
and the RGB 168xi. They control sync on green
(SOG) output, Digital Display Sync Processing and
serration pulse removal.
* The fourth switch controls video input termination
S
(75 ohm vs. Hi Z) in the RGB 138xi, and it has no
function (spare) in the RGB 168xi.
1 — SOG (sync on green)
ON — When this switch is set to On, the
interface will output sync on green.
OFF — When the SOG switch is set to Off, the
interface outputs both separate
horizontal and vertical sync (on the H
and V connectors) and composite sync
(on the S connector) for RGBHV or
RGBS, respectively.
2 — DDSP™ (Digital Display Sync Processing™)
This feature may be necessary for digital display
devices such as LCD (liquid crystal display), DLP
(digital light processing) and plasma displays.
Use this option if the image still is not displayed
properly after all other options, such as serration
pulse removal and video termination changes,
have been explored.
ON — When this switch is set to On, the
interface uses Digital Display Sync
Processing instead of Advanced Digital
Sync Processing™. DDSP does not
process the sync signal.
DDSP will disable horizontal and vertical
shift controls.
OFF — When this switch is set to Off, the
interface performs sync processing
operations, such as horizontal shifting,
with ADSP .
3 — SERR (serration pulse) — Many display
devices, including LCD and DLP projectors and
plasma displays, must have serration pulses
removed from the sync signal in order to display
2-6
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
2-7
Installation and Operation, cont’d
RGB 138
xi
R
G
B
1
3
8
x
i
I
N
P
U
T
S
A
U
D
I
O
A
N
A
L
O
G
U
N
S
W
IT
C
H
E
D
6
00
W
A
T
T
S
M
A
X.
MIN/M
AX
M
B
C
P
O
W
E
R
U
N
I
V
E
R
S
A
L
I
N
T
E
R
F
A
C
E
W
/
A
D
S
P
Remove #8 Screws
(4 Places) Each Side
and Bracket, if Present
Remove (12)
Screws
Lift Cover
Straight Up
2-8
RGB 138
4 — 75 Ohm (video input termination) —
4 — SPARE — RGB 168
BNC output connectors — These BNC female
6
connectors are for red, green, and blue video output,
and horizontal, vertical and composite sync output.
xixi
xi, RGB 168
xixi
properly. Flagging or bending at the top of the
video image is a sign that the serration pulses
should be removed.
ON — When this switch is set to On, serration
pulses will be output in the vertical sync
interval.
OFF — When this switch is set to Off, serration
pulses will not be output.
RGB 138
xixi
xi only — Video termination is
xixi
accomplished in a number of ways when using a
universal interface like the RGB 138xi:
1. Using a laptop breakout cable (LBC)
connected to a laptop or desktop computer
with no local monitor,
2. Connecting a local monitor to the breakout
from an MBC cable,
3. Setting the 75 ohm termination switch on the
interface when using an MBC cable without a
local monitor attached,
4. Using a termination adapter with an MBC
cable and no local monitor attached, or
5. Using an MBC buffer cable.
The input to the interface is high impedance, and
for the video signal to be at a proper level (not
blooming) 75 ohm termination is needed for the
computer signal. The switch provides a method
of termination to prevent blooming
SOG
DDSP
SERR
75 Ohm
when a monitor breakout cable is used
but no local monitor or termination
adapter is connected.
ON — The RGB 138xi provides 75 ohm video
input termination.
OFF — The RGB 138xi provides Hi Z (high
impedance) video input termination.
xixi
xi only
xixi
This DIP switch does not have a
SOG
DDSP
SERR
SPARE
function in the RGB 168xi.
xixi
xi Installation and Operation
xixi
Stereo audio output connector — This 3.5 mm,
7
5-conductor captive screw connector is used for
audio output. See “Cabling” in this chapter for a
wiring guide.
Setting Internal Jumpers
The jumpers inside the interface(s) are set at the factory to meet
the requirements of most systems. However, you can
change a jumper setting to meet the needs of a particular
system.
Changes to internal jumper settings must be
performed by authorized service personnel only.
The user-configurable, internal jumpers control the
following functions:
• horizontal and vertical sync polarity, and
• vertical sync pulse width.
Follow these steps to change the jumper settings. The
RGB 138xi is shown for illustration, but the steps apply to
both models.
1. Remove power from the interface (if it is connected) by
disconnecting the AC power cord from the unit.
2. Open the cover of the interface (the top half of the
enclosure), as shown below. Remove the screws
from the enclosure, and lift the cover straight up.
Do not touch any switches or electronic
components inside the interface. Doing so
could damage the interface.
Opening the interface cover
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
2-9
Installation and Operation, cont’d
3. Note the positions of jumpers J20 and J40 before
changing jumper settings. The illustration of the
circuit board (below) shows the locations of the J20
and J40 jumpers. There are two possible setting
combinations for 3-pin jumpers:
pins 1 and 2 connected, and
1 and 2
pins 2 and 3 connected.
2 and 3
Rear
1
J19
1
J20
1
J40
Front
J20: Sync polarity
jumper
J40: Vertical
sync
width
jumper
Power Supply
Circuit board jumper locations
4. Configure the jumpers. To configure the jumpers, use
pliers to pull the jumper shunt off the pins, then
place the jumper on the appropriate pins.
Changing jumper settings
The jumpers perform the following functions:
J-20: Sync polarity jumper — This jumper adjusts the
output sync polarity. Horizontal (H) and vertical
(V) sync output can either follow input sync
Negative
ollow
polarity, or be forced to negative.
• If the jumper is placed on pins 1 and 2,
1
output H and V sync polarities will be
forced to negative.
• If the jumper is placed on pins 2 and 3, output
sync polarities follow input sync polarity:
the output sync signals’ polarity will be the
same as the input polarity.
This is the default setting.
J-40: Vertical sync width jumper — This jumper
adjusts the vertical sync pulse width. Some
digital display devices have very specific
Wide
hort
requirements for incoming sync pulse width.
If no picture displays, the picture cuts in and
out, or the picture is scrambled, try adjusting
1
the vertical sync pulse width or switching
from ADSP to DDSP.
• If the jumper is placed on pins 1 and 2, the
output vertical sync pulse will be
short (narrow).
• If the jumper is placed on pins 2 and 3, the
output vertical sync pulse will be wide.
This is the default setting.
5. Replace and fasten the enclosure cover, reversing step 2.
If adapter plates will be installed next, this step can
be omitted.
Installing Adapter Plates
The RGB 138xi and RGB 168xi offer the ability to incorporate
a variety of optional architectural adapter plates for passthrough audio and/or video connections. Each interface’s
front panel can hold up to four (4) input adapter plates. The
rear panel can hold up to two (2) output adapter plates.
Blank plates (three double height) are included with the
interface to cover unused spaces. Other adapter plates
must be ordered separately.
The input plates attach to the front panel. Output cables,
attached to the rear of each plate, pass through the interface
enclosure and rear panel and are held in place by clamps or,
where an output plate is installed, may be wired directly to
the rear output plate connectors. Some adapters require
cables to be soldered to the input/output plate connectors.
2-102-11
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
Installation and Operation, cont’d
Adapter plates should be attached to the output cables and
interface before the interface is installed in a rack or in
furniture. The screws for installing the adapter plates are
built into the plates, so no additional screws will be needed.
Adapter plate installation must be performed
by authorized service personnel only.
Follow these steps to install adapter plates. The RGB 138xi
is shown for illustration, but the steps apply to both models.
1. Make sure that the power is removed from the interface
by disconnecting the AC power cord from the unit.
2. Open the cover of the interface (the top half of the
enclosure), as shown below. Remove the screws
from the enclosure, and lift the cover straight up.
Do not touch any switches or electronic
components inside the interface. Doing so
could damage the interface.
Remove (12)
Screws
Lift Cover
Straight Up
G
TS
O
U
L
P
A
IN
N
A
P
IO
D
U
A
Opening the interface cover
3. Remove the blank plates from the interface by
unscrewing the nuts that fasten the plates to the
inside of the enclosure.
4. Route the adapter output cables through the rear panel
cable holes and clamps into the enclosure and out
the front panel plate openings, as shown on the
facing page.
5. Attach the output cables to the rear connectors of the
front panel adapter plates. Soldering will be
required for some connectors.
i
x
8
3
P
S
1
D
B
/A
G
W
R
E
C
FA
R
E
X
T
A
M
IN
/
L
N
I
M
SA
R
E
IV
N
U
C
B
M
R
E
W
O
Remove #8 Screws
(4 Places) Each Side
and Bracket, if Present
RGB 138
xi
Cable Routing
UNSWITCHED
600 WATTS MAX.
E
G
TA
VOL
GH
HI
N
O
I
T
U
A
C
S
G
T
O
U
L
P
A
IN
N
A
IO
D
U
A
Tighten nuts
securely
P
S
D
/A
RGB 138 xi
E W
C
A
F
R
E
X
T
A
M
IN
/
L
N
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A
M
S
R
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IV
N
U
C
B
M
R
E
W
O
P
Adapter Plate
Routing adapter output cables and
D
E
H
C
IT
W
S
N
U
.
X
A
M
S
TT
A
W
0
0
6
attaching adapter plates
6. Insert the adapter plate screws through the holes in the
interface front panel, as shown above. Attach the
adapter plates to the enclosure with the provided
captive washers and #4-40 nuts.
7. Gently pull excess cable(s) out the rear panel cable
clamp openings or, if a rear panel output adapter
plate is being used, connect the cable(s) to the plate
connector(s). Do not strain or damage the cableadapter connections.
8. Fasten the cables in place by tightening the screws on
the cable clamps provided on the rear panel openings.
100-240 50/60 Hz 0.5A
9. Replace the top cover on the interface, and fasten it with
the screws removed in step 2.
2-12
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
2-13
Installation and Operation, cont’d
Mounting the Interfaces
Select the installation site. Take cabling and power
availability into consideration. Select an installation option:
tabletop/desktop placement, or under-desk, through-desk
or rack mounting.
Tabletop/desktop placement
For tabletop or desktop placement only, install the selfadhesive rubber feet/pads (provided) onto the four corners
of the bottom of the interface enclosure.
Under-desk mounting
1. Attach the mounting brackets to the interface with the
provided machine screws, as shown below.
2. Hold the interface with attached brackets against the
underside of the desk or other furniture. Mark the
location of holes for screws on the desk.
3. Drill 1/4” (6.4 mm) deep, 3/32” (2.38 mm) diameter pilot
holes in the table or desk at the marked screw
locations from the underside/inside (concealed side)
of the furniture, where the interface will be located.
4. Attach the interface to the installation surface with the
provided wood screws, as shown below.
Through-desk mounting
1. Attach the through-desk mounting brackets to the
interface with the provided machine screws.
2. Hold the interface with attached brackets against the
underside of the mounting surface of the desk or
table. With a soft pencil mark the location of holes
for screws on the desk. Mark the opening,
approximately 17.63” x 1.88” (44.77 cm x 4.76 cm).
3. Cut out the material from the installation area with a
jigsaw. Check the opening size by inserting the
interface part way through the hole. If needed, use
a saw, file or sandpaper to enlarge the hole. Smooth
the edges of the hole with sandpaper.
4. Drill 1/4” (6.4 mm) deep, 3/32” (2.38 mm) diameter pilot
holes in the desk or table at the marked screw
locations. The holes should be drilled from the
underside or inside (concealed side) of the furniture,
where the interface will be located.
5. Attach the interface to the desk with the provided wood
screws, as shown in the illustration below.
2-14
RGB 138
Under-desk mounting
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
.
X
A
S M
TT
A
0 W
60
D
HE
C
IT
W
S
N
U
X
A
/M
N
I
M
P
S
D
i
A
/
x
W
8
3
E
C
1
A
F
B
R
E
G
T
R
N
I
D
E
H
C
T
I
W
S
N
U
.
X
A
M
S
T
T
A
W
0
0
6
i
x
8
3
P
1
S
D
B
A
/
G
W
R
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C
A
F
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E
X
T
A
N
I
M
/
L
N
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A
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S
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V
I
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U
C
B
M
S
G
T
O
U
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P
A
N
R
I
N
E
A
W
O
P
O
I
D
U
A
L
A
S
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V
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U
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O
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C
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O
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A
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A
S
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U
P
N
I
O
I
D
U
A
To adjust the height of the interface within the desk,
slightly loosen the screws that attach the brackets to
the interface, adjust the height by sliding the
interface up or down, and retighten the screws.
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
2-15
Installation and Operation, cont’d
Rack mounting
1. Attach the through-desk/rack mounting brackets to the
interface with the provided machine screws, as
shown below.
2. Attach the interface to the rack with the provided
machine screws.
Rack mounting
Cabling
Attach cables to the interface as detailed in the steps below.
A diagram later in this section shows how the system looks
when cabling is finished.
1. Connect the computer’s video output to the interface’s
front panel analog/ECL 9-pin D connector. If the
computer will provide the audio input, a VGA with
audio combination cable, such as an Extron
VGA M MHRA series cable (#26-490-01 to #26-490-
05), can be used.
For the RGB 138xi, a monitor breakout cable (MBC)
can be used to allow local monitor output.
2. Connect the stereo audio source (computer or other
D
E
H
C
T
I
W
S
N
U
.
X
A
M
S
T
T
A
W
0
0
6
P
S
138 xi
D
A
/
GB
W
R
E
C
A
F
R
E
X
T
A
N
I
M
/
L
N
I
A
M
S
R
E
V
I
N
U
C
B
M
S
G
T
O
U
L
P
A
N
R
I
N
E
A
W
O
P
O
I
D
U
A
device such as a CD player or tape deck) to the
front panel. The audio jack should be wired as
shown below.
Tip (+)Sleeve (GND)
Ring (R, -)
Tip (L, +)
Sleeve (GND)
3. Connect the video output device’s (projector’s,
monitor ’s) coaxial BNC cable to the rear panel BNC
connectors.
RHGVB
RGBHV
RHGVB
RGBS
RHGVB
RGsB
For RGBHV (separate H and V sync) output,
S
connect the cables as shown at left.
For composite sync (RGBS), connect the sync
S
cable to the connector labeled “S”.
For sync on green (SOG, RGsB), connect the
S
cables as shown here, and also select the SOG
option on the rear panel DIP switch.
2-16
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
4. Connect the local monitor. For the RGB 168 xi, connect
the monitor’s cable to the front panel 15-pin HD
female local monitor output connector.
For the RGB 138xi, a local monitor can be connected
to the monitor breakout cable if one were used in
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
2-17
Installation and Operation, cont’d
o
step 1 to connect the computer to the interface. Set
the front panel monitor ID bit DIP switches to On if
no local monitor will be used.
5. Connect powered speakers or another audio device to
the rear panel captive screw connector. Follow the
wiring guide shown below. Insert the wires into the
appropriate openings. Tighten the screws on top to
fasten the wires, then insert the wired audio
connector into the audio output connector on the
interface rear panel.
Connect the sleeve to ground (GND).
Connecting the sleeve to a negative (-)
terminal will damage the audio output circuits.
Unbalanced Output
Tip
See Warning
Sleeve (s)
Tip
See Warning
Wiring captive screw connectors for audio output
6. Set the DIP and toggle switches. Use the “Front Panel”
and “Rear Panel” sections of this chapter as a guide.
7. Connect power cords and turn on the devices in the
following order: display and audio output devices
(projectors, monitors, speakers), interface, and input
device (computer).
The system is now ready for operation.
Balanced Output
Tip
Ring
Sleeve (s)
Tip
Ring
Mounted under
a Desk
Front
Rear
RGB 138
xi
Through-desk or
Rack Mounted
C
B
M
S
G
T
O
U
L
P
A
N
R
I
N
E
A
W
O
P
O
I
D
U
A
A
5
.
0
V
0
4
2
0
0
1
Power
LBC w/ Audio
i
x
8
3
P
1
S
D
A
B
/
G
W
R
E
C
A
F
R
E
X
T
A
N
I
M
/
L
IN
A
M
S
RE
V
I
N
U
U
Sample Modular Connector Plates
2 - BNC
2 - RCA
2 - S-Video
2 - F Connectors
Front
Rear
RGB 168
SERR
DDSP
SOG OUT
/
L
E
V
E
L
K
A
E
%
P
0
5
V
8
.
0
Y
T
I
N
%
0
0
1
V
9
.
0
xi
Cable
SPARE
D
E
H
C
IT
W
S
N
U
.
X
A
M
S
T
T
A
W
0
0
6
Network
Connection
2 - 3.5mm Stereo mini
DB9
HD15
1 - S-Video / 2 - RCA
ID PIN 11
ID PIN 14
G
S
O
T
L
U
A
P
N
N
I
A
O
I
D
U
A
A
5
.
0
V
0
4
2
-
0
0
1
Power
AC Power
Audio
or
MonitorProjector
Through-desk or
Rack Mounted
or
Mounted under
AC Power
a Desk
Monitor
Audi
or
Projector
D
E
H
C
T
I
W
S
N
U
.
X
A
M
S
T
T
A
W
0
0
6
i
x
8
6
P
1
S
D
A
B
/
G
W
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C
A
F
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A
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/
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U
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A
C
O
T
L
U
P
D
T
E
U
R
O
E
F
R
F
O
U
T
I
B
N
O
M
/
L
E
V
E
L
K
A
E
P
0
5
V
8
.
0
Y
T
I
N
U
0
1
V
9
.
0
Network
Connection
SPARE
SERR
DDSP
SOG OUT
%
%
0
PC Computer
2-18
RGB 138
The illustration on the facing page shows typical system
installation and cable connections for both models.
xixi
xi, RGB 168
xixi
xixi
xi Installation and Operation
xixi
Typical RGB 138
RGB 138
xixi
xi, RGB 168
xixi
xixi
xi
and RGB 168
xixi
xixi
xi Installation and Operation
xixi
xixi
xi
installation and cable setups
xixi
2-19
Installation and Operation, cont’d
Troubleshooting
When the interface, computer and output devices have
been properly installed, and the power is turned on, the
image should appear on screen, and sound should be
audible.
If the image does not appear or there is no sound
1. Ensure that all devices are plugged in.
2. Make sure that each device is receiving power. The
power indicator LED should light if the interface is
powered on.
3. Check the cabling and the audio connector wiring, and
make adjustments as needed.
4. Verify that the video input termination DIP switch on
the RGB 138xi and the ID bit termination DIP
switches on the RGB 168xi have been set correctly.
5. For digital display devices, try switching between ADSP
and DDSP using the rear panel DDSP DIP switch.
6. Call Extron’s customer support hotline if needed.
If the image does not display correctly
1. If the output image looks too green, make sure that the
sync on green feature (SOG DIP switch) is turned
off.
2. If the picture bends or flags at the top of the screen, set
the SERR (serration pulse) DIP switch to Off.
3. For a display device that experiences intermittent
glitches, try switching between ADSP and DDSP
using the rear panel DDSP DIP switch.
4. If the picture “hangs off” the edges of the screen, adjust
the centering controls.
5. If the edges of the image seem to exceed their
boundaries or if thin lines and sharp edges look
thick and fuzzy, try changing the GAIN/PEAK
setting.
6. If the image still does not display correctly, call Extron’s
customer support hotline.
MBC VGA/XGA HR26-162-01
MBC Mac Quadra26-018-01
MBC Sun Sparc HR26-424-01
MBC SGI/13W3 HR26-425-01
(with audio)26-490-01
Laptop breakout cables* (RGB 138xi )Part number
LBC VGA HR 6’26-244-01
LBC Mac HR 6’26-363-01
LBC Sun HR 6’ A (61 kHz) (w/audio)26-443-02
LBC Sun HR 6’ A (71 kHz) (w/audio)26-444-02
LBC Sun HR 6’ A (81 kHz) (w/audio)26-445-02
Laptop breakout cables are also available in 3’ and 12’
*
lengths.
Adapter kits for RGB 168
Mac 15-pin HD F adapter cable kit w/audio 70-156-01
13W3 15-pin HD F adapter cable kit w/ audio 70-157-01
A variety of optional architectural adapter plates for
pass-through connections may be ordered for these
interfaces. The RGB 138xi and RGB 168xi can each hold up
to four (4) input adapter plates and two (2) output adapter
plates. The following configurations of adapters could be
installed in either interface:
Input adapter plates:
• four input adapter plates with a “plate size” of one,
• two input adapter plates with a plate size of one and one
input adapter plate with a plate size of two, or
• two input adapter plates of plate size two.
Output adapter plates:
• one output adapter plate with a plate size of two, or
• two output adapter plates of plate size one.
The tables on the following pages list the available adapter
plates.