LG GT350 - Keypad Back Light Trouble

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Only for training and service purposes
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4. TROUBLE SHOOTING
LG Electronics 77/115 LGE Property
4.9 Keypad back light trouble
Check Points
-Signal path is connected well
TP1
z
TP2
LD102 LD101
K01
1
01
R
1K
R102
301R
001
401R
001
2SC5585
Q101
1
2
3
1u
C109
C110
1u
VBAT
SLIDE_KEY_BL
MULTI KEY BACKLIGHT
TP1
LEWWS44PA
LD501
LEWWS44PA
LD502
47
R507
47
R508
ICVN0505X150FR
VA501
47
R509
LEWWS44PA
LD503
R532
47
LD504
LEWWS44PA
V
BAT
QWERTY_KEY_BL
QWERTY_KEY BACKLIGHT
TP2