Sharp XG-V10WU Service Manual page 52

XG-V10WU
AN-SD1U/S422U
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-4
Checking the sync signal
Is there vertical sync signal at
TL134?
Yes
Is there horizontal sync signal
at TL133?
Yes
Is there vertical sync signal at
TL131?
Yes
Is there horizontal sync signal
at TL130?
Yes
Are both the vertical and Yes
horizontal sync signals in
good timing?
No
Is the signal generator (input
source) as specified?
Yes
Input PWB defective.
» Check the H/V separation type sync signal.
No
No
Check up the input signal
settings.
Input PWB defective.
No
No
PC board s sync signal
selector circuit or its
peripherals defective.
No problem with the sync
signal.
No
Make proper signal source
settings.
2
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