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22LG3DDH (CHASSIS:LA96E) - LG TV Service Manual (repair manual). Page 35

Read LG 22LG3DDH (CHASSIS:LA96E) Service Manual online

10. Analog TV Audio
Check RF Cable
↓ OK
Check Tuner 5V Power
TU1001 4Pin
→
NO
Check IC1002
Check IC1003
→
NO
Bad Tuner. Replace
Tuner.
↓ OK
Check SIF buffer signal.
→
NO
Check SIF Signal line.
↓ OK
Follow procedure All source audio
trouble shooting guide.
→
NO
Replace Mstar(IC100)
or Main board
11. Pillow Speaker Audio
Check Switch
SW1500 Location(Pillow Speaker)
↓ OK
Check Connection & JK1500
→
NO
Replace Connector if found to be
damaged
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