Operating instructions

37’’ LCD TV AOC TV3766W
28
6.4 No sound
OK
NG
Check SIF signal
Check TV system setup
OK
Check TU100
Replace TU100
Check
A
V1、
A
V2、com
p
onent si
g
nal
Check U601
NG
Replace U601
OK
Check U502
NG
Replace U502
OK
Check U503
NG
Replace U503
Check Earphone jack
NG
Replace the Earphone jack
OK
Check speaker
NG
Replace speaker
Check the source
OK
NG
Check signal filter circuit
NG
Replace the filter capacitance or inductance
Reset source
NG
NG
NG
Check U100
Check HDMI signal
NG
Check CS4344
NG
Replace CS4344
Check U100