AOC L37W465 Service Manual page 23

37'' LCD TV
5.2 No sound
Check speakers are ok?
Check earphone is normal?
Check Q2 MUTE circuit
Test NJM2199 (U2) PIN 12 PIN
11 output is normal?
CHECK X701 surge is normal?
Check CAS-220/CS (U701) is
normal?
Check SF701 PIN5、4 signal
input is normal?
Check TUNER circuit
OK
OK
OK
OK
OK
OK
OK
OK
NG
Check TPA6110A2 (U600)
Relative circuit is normal?
Check CS4335 (U405) PIN5
PIN 8 output is normal?
NG
Check NJM2199 (U2) PIN8 power
supply is normal?
OK
NG
NG
Check ZR39660BGCG (U401) is normal?
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AOC L37W465