AOC L22W831 Service Manual page 21

22"LCD TV AOC L22W831
5. No sound
Reset source
Check the source
OK
NG
Replace the filter or inductance
Check signal filter circuit
NG
Replace the Earphone jack
Check Earphone jack
OK
Check input signal
SIF signal Check TV system setup
OK
OK
NG
Replace TU101
Check TU101
NG
Replace U600
Check U600
OK
NG
Replace U602 or U603
Check U602, U603
OK
NG
Replace speaker
Check speaker
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