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NO SOUND
Is there about
25V at pin 5
of IC601?
YES
Does the sound
signal appear at pin 9
of P805?
YES
Does the sound
signal appear at pin 4
of IC601?
YES
Check/Replace speaker,
speaker connector.
NO
Check/Replace FR854, D855, IC601.
NO
Check the Audio source line of
¡ Check the voltage at collector of
NO
¡ Check/Replace IC601, external
VCD
Q601.
components of IC601.
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