Keypad Back Light Trouble - LG GS290 Service Manual

GS290 Operational Description

4.9 Keypad back light trouble

Check Points
-Signal path is connected well
LD405
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Only for training and service purposes
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KEY LED
VBAT
LD404 LD403 LD402
TP1
- 79 -
80/136
4. TROUBLE SHOOTING
LD401 LD400
TP1
KEY_BL
VA405
EVL5M02200
LGE Property
Revision B
LGE Internal Use Only