Keypad And Optical Joystick Key Trouble - LG CF360 Service Manual
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Also See for CF360:
- User manual (262 pages) ,
- Guía del usuario (132 pages) ,
- Quick start manual (17 pages)
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4-5 Keypad And Optical Joystick key Trouble
4.5.1 Keypad Trouble
START
Press the keypad
Keypad works well?
No
Find unclick keypad
DOME sheet or side key
is working?
Yes
Resolder BtoB connector(CN505)
Keypad works well?
No
Change Main Board
A
P
P
_
C
A
M
_
2 I
C
_
S
D
A
V
D
D
_
C
A
M
_
1
V
8
V
D
D
E
_
1
V
8
S
U
B
_
L
E
D
1
V
B
A
T
K
E
Y
O
U
T
0
K
E
Y
O
U
T
1
K
E
Y
O
U
T
2
K
E
Y
O
U
T
3
K
E
Y
O
U
T
4
V
D
D
G
_
2
V
8
5
L
C
_
W
E
n
D
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Yes
Finish
No
Change the DOME sheet
or side key
Yes
Finish
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
R
5
4
2
4
7
2
6
R
5
4
3
4
7
2
7
- 77 -
4. TROUBLE SHOOTING
CN505
35
36
5
6
5
5
5
4
5
3
5
2
5
1
5
0
4
9
4
8
4
7
4
6
4
5
4
4
1
70
C
_ I
H
S
Y
N
C
V
D
D
H
_
2
V
7
5
S
U
B
_
L
E
D
2
K
E
Y
N I
0
K
E
Y
N I
2
K
E
Y
N I
3
K
E
Y
N I
4
O
N
S
W
A
_
n
V
B
A
C
K
U
P
V
D
D
E
_
1
V
8
A
P
_
G
P
_
L
D
_
B
L
_
C
T
R
L
P
C
LGE Internal Use Only
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Table of Contents
Troubleshooting
