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B.
No Hi-Fi Sound in playback mode
Is the ENVE level of pin 25 IC901 more than 280mVp-p? Yes Is A SW PULSE input into pin 27 of IC901? Yes
No
Check the ICH01 of PRE-AMP circuit
No
Check IC601
Is pin 23 of IC901 5V?
No
Is the ENVE. input into pin 25 of IC901?
No
Check C905
Yes Change IC901
Yes
Change IC901
22
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