Read LG 55LM5800 / 55LM5850 (CHASSIS:LA21B) Service Manual online
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11. AV Audio
12. Component Audio
13. RGB Audio
Check AV Cable for damage
for damage or open conductor
Check JK1601 Signal Line
R1632,R1633
ok
ok
No
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
Check Component Cable
for damage or open conductor.
Check JK1601 Signal Line
R1618, R1617
ok
ok
No
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
Check Cable conductors
for damage or open conductor
Check JK1102 & Signal Line
ok
No
ok
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
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