LG 22LE5300 (CHASSIS:LL01A) Service Manual ▷ View online
10. Analog TV Audio
Check RF Cable & Signal
Follow procedure
‘8. All source audio’
trouble shooting guide.
ok
Check Tuner 3.3V Power
L5003
Replace L5003
Check Tuner 1.2V Power
IC5001 2 pin : 1.2V
Check CVBS Signal
TU5001 11 Pin
Replace IC5001.
Check Tuner 5V Power
L5002
Check IC401
ok
ok
ok
ok
No
No
No
No
Replace IC401
No
Bad Tuner. Replace Tuner.
Replace L5002
ok
12. Component Audio
Check Component Cable
for damage or open conductor.
Check JK3801 & Signal Line
ok
ok
No
Replace Jack
11. AV Audio
Check AV Cable for damage
for damage or open conductor
Check JK3801 , JK3302
& Signal 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 conductor
Check JK1102 & Signal Line
ok
No
ok
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
14. EARPHONE Audio
Check AV Cable for damage
for damage or open conductor
Check JK3301
& Signal Line
ok
ok
No
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
LG Electronics/ LCD TV Division
LCD TV Gr.
LD460 Block Diagram
< Contents >
Video Signal Block
Video Signal Block
Audio Signal Block
Audio Signal Block
Flash Block & Reset
Flash Block & Reset
I2C Block
I2C Block
GPIO Block
GPIO Block
POWER Block
POWER Block
Overall Block Diagram
Overall Block Diagram
LVDS 출력 Block
LVDS 출력 Block
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