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4.2 Display Controller Board, B-DISPX
Problem
No image on the screen
Regular stripes on the picture
Part of the screen has wrong
colors
Picture disfigured
The picture is unclear
The picture looks much larger
than the display screen
Cause
No power
Cable or display board loose
Board or display faulty
Faulty Display controller board
Display not fully compatible
with display controller board
Triac board failure
Outer magnetic field
The set resolution is not
compatible with the display in
use.
Displays and Controller Boards
Treatment
Check power on
Check cable and board connections
Try with another board and/or display
Replace the board.
Try an other type of display or display
controller board
Replace triac board, see Part
II/8-Module Frame, F-CU8/Power
supply.
Turn the monitor off, wait 10 minutes
and turn the monitor on again in order
to demagnetize the screen.
Change the resolution setting through
the installation menus (in monitor
software).
Document no. M1137272-02
25
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