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NO TUNER AUDIO (MONO)
Do the voltages appear at
each terminal +B(5V) and
TU(32V) of TU6001?
Yes
Does signal appear
at pin 15 of TU6001?
Yes
Does signal appear
at pin 76 of IC4001?
Yes
Check J4201 and peripheral circuit.
1-40
TROUBLESHOOTING GUIDE
No
No
No
Check POWER BLOCK.
Check TU6001 and peripheral circuit.
Replace IC4001.
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