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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
6. Repairing
Keypad Switches and Key Backlight Illumination
6.3 Circuit Diagrams
PWRKEY
KCOL0
KCOL1
KCOL2
KCOL3
KROW5
KROW1
KROW2
KROW3
KROW0
KROW4
POWER KEY
KEY PA D
6
7
8
9
*
0
S115
1
2
S101
1
2
HSP110
L101
82nH
S117
1
2
S111
1
2
S105
1
2
HSP106
S112
1
2
S102
1
2
C101
33pF
S113
1
2
S109
1
2
C105
33pF
S119
1
2
S110
1
2
HSP104
HSP105
S120
1
2
S108
1
2
L103
82nH
HSP103
C106
33pF
S121
1
2
HSP107
S106
1
2
HSP102
L105
82nH
S122
ON/OFF
1
2
S107
1
2
HSP108
L102
82nH
C107
33pF
HSP101
S118
1
2
S114
1
2
HSP109
C102
33pF
L104
82nH
C104
33pF
S116
1
2
L106
82nH
VBAT
VDD
KP_BL-
P.5
KROW3
P.4
KROW4
P.4
KROW5
P.4
KCOL0
P.4
KCOL1
P.4
PWRKEY
P.5
KCOL2
P.4
KCOL3
P.4
URXD2
P.4
UTXD2
P.4
GPIO5_CAP
P.4
KROW1
P.4
KROW0
P.4
KROW2
P.4
V603
ESDA
0402R-S
1
2
V613
DNI
0402R-S
1
2
V608
ICVE21054E250R101
ICVE21054E250R101
1
3
5
7
8
6
4
2
9
10
C601
100nF_10%
0402C-S
J601
AXK720147G
AXK720147G
GND1
20
VBAT1
19
VBAT2
18
VDD
17
GND3
1
KCOL2
13
KCOL1
12
KCOL0
11
PWRKEY
15
CAP_ON
7
KCOL3
14
KROW3
6
KROW4
5
KROW5
4
KROW0
10
KROW1
9
KROW2
8
RXD2
2
TXD2
3
BL_EN
16
V609
ICVE21054E250R101
ICVE21054E250R101
1
3
5
7
8
6
4
2
9
10
R610
DNI
0402R-S
R611
DNI
0402R-S
V612
DNI
0402R-S
1
2
C605
100nF_10%
0402C-S
V607
ICVE21054E250R101
ICVE21054E250R101
1
3
5
7
8
6
4
2
9
10