LG 37LV3500-DG (CHASSIS:LT01M) Service Manual ▷ View online
10. Analog TV Audio
Check RF Cable & Signal
Check Tuner No 14 pin
(3.3V Power)
Check Tuner No 13 pin
(1.2V Power )
Check Tuner No 9
(SIF)
Check Tuner No.3 pin
(5V Power)
Check IC406
Check Q3709
Replace Q3709 TR
ok
ok
ok
ok
ok
No
No
No
No
No
Replace IC406
No
Bad Tuner. Replace Tuner.
Replace Tuner
ok
Check IC405
Replace IC405
No
Replace Tuner
ok
Check IC3703
Replace IC3703
No
Replace Tuner
ok
Replace the IC101 or main b;d
ok
12. Component Audio
Check Component Cable
for damage or open connector.
Check JK1603, JK1601 & Audio Line
ok
ok
No
Replace Jack
11. AV Audio
Check AV Cable for damage
for damage or open connector
Check JK1604 , JK9903 or JK9901
& Audio Line
ok
ok
No
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
Follow procedure
‘8. All source audio’
trouble shooting guide.
13. RGB Audio
Check Cable conductors
for damage or open connector
Check JK1102 & Audio Line
ok
No
ok
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
12. Component Audio
Check Component Cable
for damage or open connector.
Check JK1603, JK1601 & Audio Line
ok
ok
No
Replace Jack
11. AV Audio
Check AV Cable for damage
for damage or open connector
Check JK1604 , JK9903 or JK9901
& Audio Line
ok
ok
No
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
Follow procedure
‘8. All source audio’
trouble shooting guide.
13. RGB Audio
Check Cable conductors
for damage or open connector
Check JK1102 & Audio Line
ok
No
ok
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
12. Component Audio
Check Component Cable
for damage or open connector.
Check JK1603, JK1601 & Audio Line
ok
ok
No
Replace Jack
11. AV Audio
Check AV Cable for damage
for damage or open connector
Check JK1604 , JK9903 or JK9901
& Audio Line
ok
ok
No
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
Follow procedure
‘8. All source audio’
trouble shooting guide.
13. RGB Audio
Check Cable conductors
for damage or open connector
Check JK1102 & Audio Line
ok
No
ok
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.