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No audio output
No audio output
Check 34v voltage on
AMP board is normal
Yes
Check the signals of I2S
34,35,36,42,43,44)
Check the I2S signals (U1500 Pin
11,22,23,24,25,26)
Yes
Check the PWM signals (U1500
Pin38,39,40,41,42,43,44,45,46,47,
Check the AMP IC Output
(U1600,U1601,U1700 )
Replace the speaker
Yes
(U20 Pin
Yes
48,49)
5 - 2
NO
refer
output
NO
Replace main board
NO
NO
NO
Trouble shooting chart
NO
+34V
to
<
>
Check the PCB Layout
Replace U1500
Replace U1600,U1601,U1700
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