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YES
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YES
No sound from AUX
[H] 3.3v at
PDET2_IC1001_4pin?
Failure of DAMP IC1401 or
IC1402, or Failure of Q1401 or
Q1402
Failure of speakers
Failure by damaged coil
Is there digital
waveform output
at IC1401_43pin?
Failure of IC1504
No sound from all
speakers?
Check the damage of
the speaker. Connect
to another normally
functionning unit.
Sound is normal?
Failure of DAMP IC1401 or IC1402
Is there digital
waveform output
at IC1501_7pin?
Is there 5V output
at IC1504_3pin?
Failure of DAMP IC1401 or IC1402
Is there AUX
waveform at
IC1504_13_14 pin?
Breaking wire between JK1902 -
P1901 - P1811 including FFC.
Failure of IC1504
L1401-1406 are
conductive by
measuring the
measuring the
ohmmeter?
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