Caple C702G Instrukcja Obsługi Strona 109

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Przeglądanie stron 108
7-21
CONTINUE1 CONTINUE2 CONTINUE3
NG
NG
OK
Measure the voltage at C5P1 on the SW/HV PWB(PWE-571).
NG
OK
Check the pulse at Q5R1 gate on the SW/HV PWB
(PWE-571).
OK
NG
Check the pulse at pin 14 of IC5W1
on the HVCT PWB (PWE-623).
NG
OK
OK NG
CONTINUE1 CONTINUE2 CONTINUE3
Remove L5R1 and check 80V line again.
Video amplifier IC721 on the VIDEO
PWB (PWE-567A) failure.
Check SW REG circuit. (see item 13)
Q5R1 and its ambient circuit failure.
Check 15V line.
Check SW REG circuit. (see item 13)
Check HV drive pulse.
Q5R1 and ambient circuit failure.
T5R1 (FBT) failure.
Check the horizontal trigger pulse.
CN-DF Failure.
CNPCS or R5W7 Failure.
Check waveform at pin1 of CNPCS.
R5P1,R5P2 failure.
approx.15V
Horizontal period
Przeglądanie stron 108
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