Caple C702G Manuel de service Page 121

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14. MOIRE CANCEL FAILURE
When the moire cancel control is max. condition, IC501 pin 22 waveform is as follows.
Only horizontal signal is NG.
NG
When the moire cancel control is max. condition, C513 waveform is as follows.
NG
OK
OK
vertical
p
eriod
horizontal
p
eriod
0V
vertical
p
eriod
0V
Operate the moire cancel control, and check the moire cancel control signal.
IC501 failure.
Digital control circuit failure. (see item 12)
Check the vertical moire cancel control signal.
R512 or C513 failure.
IC501 failure.
Digital control circuit failure. (see item 12)
R513 failure.
IC501 failure.
Digital control circuit failure. (see item 12)
C512, R511 or R508 failure.
IC501 failure.
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