LG 42LN5200 (CHASSIS:LT36M) Service Manual ▷ View online
Standard Repair Process Detail Technical Manual
Power Board voltage measuring method
A. Video error_No video/ Audio
A4
Established
date
Revised
date
Error
symptom
Content
LCD TV
2013. 04 .24
Main
L407
L421
L405
L421 : 24V
L407 : 3.5V
L405 : 12V
Check the DC 24V, 12V, 3.5V
Check Point
Check Point
Check Point
Check Point
MENU => CHANNEL => Manual Tuning
=> Check Signal Strength & Signal Quality
Standard Repair Process Detail Technical Manual
TUNER input signal strength checking method
A. Video error_Video error, video lag/stop
<ALL MODELS>
A5
Established
date
Revised
date
Error
symptom
Content
LCD TV
2012. 01 .14
Standard Repair Process Detail Technical Manual
LCD-TV Version checking method
A. Video error_Video error, video lag/stop
1. Checking method for remote controller for adjustment
Press the IN-START with the remote
controller for adjustment
Version
<ALL MODELS>
A6
Established
date
Revised
date
Error
symptom
Content
LCD TV
2012. 11 .17
Standard Repair Process Detail Technical Manual
LCD TV connection diagram (1)
A. Video error _Vertical/Horizontal bar,
residual image, light spot
As the part connecting to the external input, check the
screen condition by signal
screen condition by signal
A7
Established
date
Revised
date
Error
symptom
Content
LCD TV
<LN5200 MODELS>
2013. 04 .24
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