AOC L22W631 Service Manual page 23

22'' LCD TV
5. No sound
HDMI
OK
Check U306
NG
Replace U306
Check the source
OK
Check MUTE
OK
Check input signal
Check U201
OK
Check U601
OK
Check speaker
NG
Reset source
NG
Close MUTE
TV
OK
Check TU100，
U204
NG
Replace U201
NG
Replace U601
NG
Replace speaker
23
AOC L22W631
NG
Check TV
readjust
system
NG
Replace TU100 or
U204