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LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
TEST POINT
CIRCUIT
TP1
4.13 KEY backlight Trouble
KEY BACKLIGHT
ICVN0505X150FR
V
A400
R412
47
47
R410
LD400
LD404
LD401
DNI
C418
LD406
SSC-TWH104-HL
LD405
R408
47
VA401
47
R414
ICVN0505X150FR
LD403
VBAT
47
R411
R409
47
LD402
LD407
SSC-TWH104-HL
R415
47
R413
47
LED
T
P
1