Read LG 22LG3DCH (CHASSIS:LA76A) Service Manual online
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11. DVI Audio
10. Pillow Speaker
Check video output
Y
Follow procedure external
input video trouble
shooting
N
Check Connector
JK600(AV Rear)
Replace connector
N
Y
Check signal
R613,R614(AV Rear)
Replace it
N
Y
Check Q711 power voltage level 16V
Replace it
N
Y
Maybe NTP3000A has problems
Check main spk output
Follow proc edure All sourc e audio trouble
shooting
Y
Fo llo w p ro c ed ure aud io t ro ub le
s ho o t i ng
N
N
Mayb e NTP3000A aud io b lo c k has
p ro b lem s. Rep lac e it
Chec k IC1204
Rep lac e i t
N
Y
Chec k SW1200
Rep lac e i t
N
Y
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