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