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NO SOUND
(PICTURE OK)
Check the voltage at the (+) lead of
0V
Check/Replace FR852, D815
0V
Check/Replace F1601
Normal
Check/Replace IC1601
Normal
Check/Replace IC602
Normal
Check/Replace X601, IC603
NO COLOR
Check the waveform at the pin34 of
Abnormal
Check/Replace X502
* A2 Stereo
* FM Mono
C822
Check the voltage at the pin10 of
IC1601
Check the waveform at the pin1, 7
of IC1603
Check the waveform at the pin21,
23 of IC603
Check the waveform at the pin47
of IC603
Check/Replace IC102
IC501
Normal
Check the waveform at the pin29,
30 of IC501
Abnormal
Check/Replace
IC501
Abnormal
Check/Replace
IC502
Abnormal
Check/Replace
IC503
31V
31V
Abnormal
Abnormal
Abnormal
Normal
Check the waveform
at the pin11, 12 of
IC501
Normal
Check the waveform
at the pin7, 8 of
IC503
Normal
Check/Replace
IC501
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