- 160 -
LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4. Trouble Shooting
(BB)
Luminance Sensor is worked as below :
Sensor ALC function On
Î
Object moved at the Luminance sensor
Î
automatically controls brightness of the display backlight. (Very slowly)
4.21 Luminance Sensor on/off trouble
Sensor ALC function On
Object moved at the Luminance sensor
LCD backlight change (slowly)?
No
Start
End
Yes
NO
Change the Sub Board
YES
Work well?
TP5,TP6,TP7,TP8 check
NO
Change the Luminance sensor
U301
TP1, TP2, TP3, TP4 check
NO
Change the Main Board
YES
YES
160P