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3.11.11 Keypad Light
There are 2 Side View White LEDs in Main board backlight circuit, which are driven
KYBD_BACKLIGHT line from PM6658.
+
V
P
W
R
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
K
E
Y
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B
A
C
K
L
D
4
R
4
0
5
1
0
0
o
h
m
L
D
4
R
4
0
6
1
0
0
o
h
m
Figure. Keypad Backlight Circuit
- 75 -
Operational
KP330
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I L
G
H
T
0
0
L
E
W
W
S
4
7
P
A
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0
1
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A
Z
C I
V
3. TECHNICAL BRIEF
Description
K
Y
B
D
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B
A
C
K
I L
G
H
T
V
A
4
0
1
L
0
5
1
8
1
0
0
Y
5
0
0
F
R
LGE Internal Use Only
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Troubleshooting
