Touch Pad Trouble - LG KP500 Service Manual

5.11 Touch pad trouble

SIM Check Points
- Touch driver IC soldering`
- Touch FPCB Crack
CN503
G1 G2
1 10
2 9
- Y
3 8
4 7
- X
5 6
G3 G4
AXK7L10227G
ENBY0018601
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VFM_2V9
5 C 9 1 5 C 0 2
u 1
. 0 u 1
+ X O T U C H I _ T N
+ Y
+ X
+ Y
- X
- Y
V 5 A 9 0
V E C L 4 1 0 S 0 2 0 5
- 91 -
5. Trouble shooting
TOUCH SCREEN DRIVER IC
5 R 5 1
TSC2007IYZGR
D I N U502
EUSY0337101
A1
AUX SDA
A2
VDD_REF A1
A3
X+ X-
B1
PENIRQ- SCL
B2
A0 GND
B3
Y+ Y-
V 5 A 0 1 V 5 A 1 1 V 5 A 2 1
V E C L 4 1 0 S 0 2 0 5
V E C L 4 1 0 S 0 2 0 5 V E C L 4 1 0 S 0 2 0 5
C1
2 I _ C D S A
C2
C3
D1
I C 2 S _ L C
D2
D3
LGE Internal Use Only