Barco service bulletin
Serial Number: InfoT 602
Date: 18/04/2005
Product: BarcoGalaxy +
Priority code*: A
A.
”Must” modification, Barco will provide t he necessary components to per form this mo difica tion
at no charge.
B.
Improves the reliability of the product.
C.
Improves the general working conditions of the product.
D.
For information only.
1. RGB MUX BOARD FAILURE ON GALAX Y +
1.1 Problem
Domain of application
This Info T concerns the RGB MUX board o n the Galaxy + series projector
with production code 48 04 .(only the R GB MUX boards with pro duction
code 4804 !)
Partnumber
R7644011
Production code
4804
Barco nv Simulation Products
Noordlaan 5,
B-8520 Kuurne
www.barco.com
Page 1 of 6
Barco service bulletin
Image 1 -1
Soldering failures
Due to soldering failures on some components on the PCB the MUX board with production
code 4804 may create following errors :
• Missing Vertical lines on internal/external sources (patterns)
• Intermitting missing color on internal/external source
Location
The RGB Multiplexer is located on the backside of the Electronic Box Drawer.
Image 1 -2
RGB Multiplexer Location
InfoT:
InfoT 602
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Barco service bulletin
1.2 Solution
Replacing the MUX board
The defective board must be returned to Barco.
A new board will be delivered and must be m oun ted in the projector.
How to replace the RGB Multiplexer ?
1.Loosen the 4 screws and take out the Electronic Box Drawer. (image 1-3)
2.Disconnect the 2 flat cable connectors J3 and J4. (image 1-4)
J3
from J1 on Connector Board PMP
J4
from J2 on Connector Board PMP
3.Disconnect the power connector J18. (image 1-5)
J18
from J40 on RGB Input 1
4.Disconnect power connector J36 on PMP 1 (Master), this is necessary to remove the RGB
Multiplexer Board. (image 1-6)
J36
from J39 on RGB Input 1
5.Loosen the 5 screw s connecting the RGB Multiplexer to the Electronic Box Drawer. (im-
age 1-7)
6.By removing the module disconnect the board to board connector J3 on the rear. (im-
age 1-8)
J3
from J35 on the PM P 1 (Master)
7.Disconnect data connector J17. (image 1-9)
J17
from J19 on RGB Input 1
8.Reverse this procedure to install the new RGB Multiplexer.
Image 1-3
Loosen the 4 screws and take out the Electronic Box Drawer.
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f6
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Barco service bulletin
J3
J4
Image 1-4
Disconnect the 2 flat cable connectors J3 and J4
J18
Image 1-5
Disconnect the po wer connecto r J18
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InfoT 602
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Barco service bulletin
J38
Image 1-6
Disconnect power connector J36 on PM P 1
Image 1-7
Page 5 o
f6
InfoT: InfoT 602
Barco service bulletin
J3
Image 1-8
By removing the module disconnect the board to board c onnector J3
on the rear
J17
Image 1-9
Disconnect data conne ctor J17
InfoT:
InfoT 602
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