No TUNER audio output
Audio output even when NO
< When playing DISC, no audio output. > Check
playing DISC
YES
Check IC808,809 (AUDIO SWITCH) power and
IC808,809 - 7NO
Switching operation
Check audio signal outputPin 2,4 High/Low =>Pin 7 output :
SW_A_OUT_L/R
YES
IC7808,809-5NOCheck IC808,809 signal flow
Check audio signal inputand power
YES
IC804 - 23,27IC804 ? 9:LOW?IC804 - 32,33NONO
Check audio signal outputHIGH: AUDIO MUTECheck I2C signal flow
YESYES
NO
IC804 - 32,33
Q803 2(Emitter ) Hihg?
Check signal flow
YES
IC702 - 46
LOW:AUDIO MUTE
IC804 ? 20,24NO
Check R913,R914,C876,C877
Check audio signal input
signal flow
YES
IC 807 - 30,31 :NOCheck IC807 power and other
No audio signal outputcircuits Check X801 oscillated
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