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NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
No sound from Bluetooth
[H] 3.3v at
PDET2_IC1001_4pin?
Failure of DAMP IC1401 or
Failure of Q1401
Failure of speakers
L1401-1404 are
conductive by
measuring the
measuring the
ohmmeter?
Failure by damaged coil
Is there digital
waveform output
at IC1401_8pin?
Failure of Bluetooth module
No sound from all
speakers?
Check the damage of
the speaker. Connect
to another normally
functionning unit.
Sound is normal?
Failure of DAMP IC1401
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