LG GD330 - Touch Trouble Shooting

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
4.21. Touch Trouble Shooting
z Check Point
- Touch Voltage ( 2.8v LDO)
- I2C control
-Touch IC
-Initial Sequence
CI
HCUOT
R610
H
CU
O
TV
_
8V
2
EVLC18S02015
3
06
A
V
316R
008
1
1
1
6
R
0
0
81
EVLC18S02015
5
06AV
5
1
6
C
u
1
.
0
00
6
P
T
20
6
A
V
EVLC18S02015
1
06
PT
14
GP0_4
165
GP1_0 GP1_1
6
GP1_2
8
3_
1
P
G
9
0
1
4
_
1PG
3
LCS
_
C
2I
AD
S
_
C
2I
4
13
VCC
7
VSS
S
E
R
X
1
1
01
1
0
2
C
8
Y
C
20
6
U
15
CSINT
1
0_
0
P
G
1
_
0
P
G
2
2
1
2
_
0P
G
GP0_3
7
1
6
C
n
7
.
4
6
1
6
C
u
1
EVLC18S02015
VA604
2
16R
00
81
TSR_H
C
T
)
0
:
1
(
N
E
S_
H
C
T
AD
S_
C
2
I
_
H
CT
LC
S
_
C
2I
_
H
C
T
TNI_H
C
T