No Sound - Sanyo PLC-XL51 Service Manual

No Sound

Check following steps.
Check if the audio signal
is observed at pins 10 and
21 of IC5001.
Yes
Check if the audio signal
is observed at pins 5 and
7 of IC5041.
Yes
Check audio output circuit.
Check speaker, connection of the terminal "K8F"
No
Check IC5001 and peripheral circuit.
Check 9V_AUDIO, 16V power supply.
No
Check IC5041, 9V_AUDIO and peripheral circuit.
Check the Mute signal at pin 7 of IC5041. The Mute signal is output from pin
201 of IC 301<Scaler>. The OUT_DET signal is sent from Audio Out terminal.
Mute-On: H at pin 201 of IC301, L at pin7 of IC5041
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Troubleshooting