No Tuner Audio(Mono) - JVC HR-J3009UM Service Manual

NO TUNER AUDIO (MONO)
Do the voltages appear at
each terminal +B(5V), PB(5V)
and TU(32V) of TU6001?
Yes
Does signal appear at
pin 21 of TU6001?
Yes
Does signal appear
at pin 76 of IC4001?
Yes
Check J4201 and peripheral circuit.
TROUBLESHOOTING GUIDE
No
No
No
Check POWER BLOCK.
Check TU6001 and peripheral circuit.
Replace IC4001.
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