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10. Trouble
Normal the voltage
N
Of LA02/LA03/
LA04/LA05
Shooting——
No Sound
Check input sound signal is ok?
Y
Check speaker and connector is ok?
Y
Check the audio amplifier power is 12V ?
Y
Check the audio amplifier power voltage is 3v3?
Y
Check UA01 output pin to LA02/LA03/LA04/LA05?
Y
Replace CA22/CA23/CA24/CA25/CA26/CA27 confirm
Y
Replace UA01
No Sound
N
36
Check PSU output
N
Replace PSU to confirm
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