TCL L55S4610F

34
Abnormal Sound or No Sound
Abnormal sound
in some of source.
To check which source
has abnormal sound.
Abnormal sound in all
source.
Check the relevant
signal source
circuit.
Check the waveform of P902.
OK?
Check the status of IIS.
OK?
Check
Speakers.
Y
Check the
status of
U900:AMP_VC
C, mute, reset.
OK?
Replace
U900.
Y
N
N
Replace U401
Check the output coupling
circuit of U401. OK?
Y
Trouble Shooting