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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
9. PCB LAYOUT
9
1
C
C
6
1
A
B
3
4
5
6
7
1
2
8
D
E
F
G
H
I
J
H
J
0 1
1 1
2 1
3 1
4 1
H
J
B
C
D
E
F
G
9
N
P
M
L
K
R
T
A
B
C
D
G
F
E
D
E
B
A
1
5
4
2 0 1 U
1 0 2 J
3 0 3 L
C
13
6
2 1 2 C
2 0 3 L
2 0 2 A
V
2 0 2 B F
C320
R310
C
43
9
C
43
5
Q
40
1
1 0 1 R
3 0 1 R
1 0 1 U
1 0 1
Q
0 1 1 C
3 0 1 P T
2 3 2 R
7 3 2 C
C
22
9
C122
6 0 1 R
3 3 4 C
R419
C
41
5
0 1 4 C
2 0 4 P T
R407
7 1 4 R
1 6 4 R
7 1 1 C
3 3 4 R
C131
R105
R
23
8
3 0 2 L
8 7 2 R
J2
02
3 0 4 A
V
2 0 4 B F
R204
C
42
7
U
20
5
1 0 2 N
C
3 3 2 C
9 2 3 C
R445
R
21
9
R446
9 1 3 C
3 2 3 C
6 6 4 R
C
23
5
X1
02
5 2 1 C
L1
01
C
11
2
7 1 1 R
D
30
2
R308
L307
C314
R437
R
46
7
R458
7 0 1 L
6 0 1 L
5 0 1 L
8 2 1 C
5 0 4 C
2 3 1 C
7 2 1 C
4 3 1 C
6 2 1 R
5 2 1 R
3 3 1 C
1 0 1 C
2 0 1 C
1 1 1 C
6 2 1 C
5 3 1 C
5 1 1 R
3 1 1 R
R118
R
31
2
C
23
9
C306
D
30
1
C307
R311
1 2 4 C
8 0 1 P T
A
N
T3
03
4 6 4 R
7 2 3 C
4 2 3 C
9 0 3 R
Q301
6 3 4 C
C
44
2
R439
3 0 1 U
4 0 1 R
4 0 1 C
C
10
6
C
10
7
C
12
9
C
12
4
C
12
3
C
22
7
0 4 2 C
0 3 2 C
0 1 2 R
C
20
9
L1
02
TP
10
4
2 0 2 C
C
20
6
FB
40
4
2 0 2 U
R459
3 6 4 R
5 0 4 A
V
C216
R213
R207
1 4 4 C
3 1 2 C
0 6 4 R
7 3 4 C
8 3 4 C
0 4 4 C
8 1 4 C
3 1 4 R
7 0 4 C
9 1 4 C
2 1 4 R
L1
04
2 3 4 R
L1
03
1 3 4 R
0 1 4 R
8 0 4 C
TP
10
9
7 1 4 C
6 0 4 P T
4 3 4 R
C411
1 0 4 P T
C103
C
13
0
C
10
8
C
11
3
1 0 1 P T
2 0 1 P T
C
23
8
C
22
8
C
25
5
R
23
3
VA20
1
1 0 2 B F
U
40
1
1 0 1 X
4 1 1 R
1 1 2 C
6 0 2 R
7 0 2 C
R205
9 0 2 R
C201
U
20
3
8 0 2 R
3 0 2 C
R421
C
42
0
R429
2 1 4 C
9 0 4 C
1 1 4 R
2 2 4 R
4 1 4 C
0 2 4 R
C
41
3
C404
C403
R409
0 3 4 R
2 0 1 R
TP
40
3
6 1 1 R
8 1 1 C
6 0 4 C
C119
C
12
0
2 1 1 R
C115
C109
L3
05
C105
C116
L3
01
C
25
6
R
23
1
R
25
1
R
25
3
VB
20
1
R447
5 1 3 L
FL
30
1
R448
2 0 4 S
C432
7 1 2 R
5 0 4 B F
4 0 4 P T
2 6 4 R
7 2 4 R
C
12
1
L3
14
4 0 3 R
6 4 3 C
5 4 3 C
6 1 3 L
2 1 3 C
4 4 3 C
L3
13
1 0 3 C
4 0 3 C
C
22
6
L2
01
FB
40
1
VA40
2
4 2 4 C
3 0 4 L
4 0 2 C
R223
R225
R224
C
42
3
8 0 2 C
8 5 2 C
4 1 2 C
3 0 2 B F
6 2 4 R
1 1 2 R
5 0 2 B F
R212
6 1 4 C
U
30
1
0 6 2 C
L3
04
7 1 3 C
C
31
3
C
34
3
1 0 3 T N
A
S4
01
J40
1
8 2 4 C
C
25
9
FB
40
3
R221
VA40
4
4 0 4 L
8 1 2 C
C
21
5
R
21
8
Q
20
1
5 1 3 R
C
32
1
C322
R
31
6
8 1 3 C
2 0 3 C
C
23
2
C
23
4
D
20
2
C
31
0
C
33
1
4 0 3 T N
A
4 0 2 B F
C429
R443
L308
SW
30
1
6 1 2 R
7 1 2 C
R
22
0
R442
R
46
5
C
34
7
R444
R452
6 5 2 R
9 0 3 L
5 1 3 C
6 1 3 C
CN202
A100_MAIN_EAX63969001_1.0_BOT
CN202 : micro USB conn.
- no charging
- no sound via headset
U205 : Mini ABB
- no power on
- no LCD backlight
- no charging
- no sound via headset
- headset detect problem
X101 : 26Mhz X-tal.
- no power on
U301 : Tx Module
- no Service
- bad Rx sensitivity
- low Tx power
U103 : Memory
- no power on
X102 : 32Khz X-tal
- no power on
U102 : EGV3 (DBB)
- no power on
- reset
J201 : SIM conn.
- SIM Card trouble
VB201 : Motor
- motor trouble