Daewoo DV-K580NZ-T - Manual (Page 39)

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4. AUDIO CIRCUIT
A. TROUBLESHOOTING OF PB MODE
YES
Check P902
& Audio JACK.
No sound in the
playback mode.
NO
YES
Is signal input pin 2 of IC 201?
Check PJ 201
&
Check C207, R208.
NO
Is 9V applied to
pin 7 of IC 201?
Check Q801 & POWER.
YES
NO
Is signal output
pin 22 of IC 201?
Check IC 201 adjacent circuit.
YES
NO
Is signal output
pin 3 of RL 901?
Check RL 901.
TROUBLESHOOTING FLOW CHART