No E-E Audio(Mono) - JVC HR-J6009UM Service Manual

TROUBLESHOOTING GUIDE
NO E-E AUDIO (MONO)
Is the voltage at pins 52,
68 and 77 of IC4001 5V?
Yes
Does signal appear
at pin 78 of IC4001?
Yes
Does signal appear
at pin 10 of IC4001?
Yes
Check J4201.
No
No
No
Check POWER BLOCK.
Check J4204 and J4205.
Replace IC4001.
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