Philips FL9.1 Technical Training Manual page 29

No
Audio
Turn the volume
up.
Is audio present
on pins 6 and 8 of
CN301?
Yes
Is the audio mute
on pin 20 of CN302
zero volts. (<0.4V)
Yes
Change the power
supply board.
TROUBLESHOOTING FLOW CHART
Change the Digital Main
No
board.
Change the Digital
No
Main board.
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