Extron electronic Extron Electronics Switch RGB 326 User Manual download pdf (Page 10)

RGB 324/326/340 • Installation and Operation

Installation and Operation, cont’d

Rear panel/circuit board features and jumpers

RGB 324/326

RGB 340

J10

.8V.9V

.7V

.8V

.9V

RGB 324, RGB 326

Interface Buffers

Level/Peaking

jumpers

Default =

0.7V (jumper

in the middle

position)

BLUE

RED

GREEN

VSYNC

HSYNC

33-320-01, Rev. C 07 00

BLUE

RED

GREEN

VSYNC

HSYNC

J10

Audio

33-321-01, Rev. A

BCDE

COM/PWRL

AUDIO

OUTPUT

RGBH V

ABCDE

1 2

J10

.8V.9V

.7V

.8V

.9V

RED

BLUE

GREEN

Video output BNC connectors — Connect coaxial cables to

these connectors for RGBHV, RGBS, RGsB, or RsGsBs analog

video output. For composite sync (RGBS) signals, connect the

sync cable to the BNC connector labeled V or VSYNC.

Audio output and communications/power connector —

Wire this 3.5 mm 10-pole captive screw connector as shown in

“Connecting the buffer to the RGB 320 with installation cable”

in this chapter (pages 2-11 to 2-14).

The left half of this connector is for audio output to the RGB 320.

The right half of this connector serves as a port for power and

buffer-RGB 320 communications.

Level/peaking jumpers — Changes to video peaking may be

needed for high resolution signals or to compensate for signal

loss from long cable runs. The buffers have separate jumpers

for red, green, and blue video signals. See the diagram shown

here or on the product label, and, for the RGB 340, also see

“Opening the RGB 340 enclosure for jumper adjustment” below.

Changes to internal jumper settings must be

performed by authorized service personnel only.

• 0.7V – This is the factory default

setting. This is a general

purpose level which is best for

use with short cables.

• 0.8V – Use this setting for long cables.

• 0.9V – Use this setting for longer

cables and/or very high

resolution signals.

2-8 2-9

To configure the jumpers, use pliers to pull the jumper shunt off

the pins, then place the jumper on

the appropriate pins.

Opening the RGB 340 enclosure for jumper adjustment

The RGB 340’s level/peaking jumpers are located on the circuit

board inside its enclosure. To open the enclosure and adjust the

jumpers, do the following and refer to the illustration on the

1. Remove power from the RGB 340.

2. Remove the five screws that attach the upper part of the

enclosure to the lower part.

3. Remove the two hex bolts that fasten the front panel to the

9-pin D analog video input connector.

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Extron electronic Extron Electronics Switch RGB 326 User Manual Page 10

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