AOC L19WA91 Service Manual page 27

5. No Sound
Reset source
Check the source
OK
NG
Check signal filter circuit Replace the filter or inductance
NG
Replace the Earphone jack
Check Earphone jack
OK
Check input signal
SIF signal Check TV system setup
OK
OK
NG
Replace TU201
Check TU201
NG
Replace U605
Check U605
OK
NG
Replace U600
Check U600
OK
NG
Replace speaker
Check speaker
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