AOC L22W831 - Connecting Basic Set-Top Box via Composite Video; Composite Video;Audio for Set-Top Box

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