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Level 3 Repair
8-39
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8-4. Service Schematics
RX1
TXEN
L
L
L
H
L
L
2G RF
CONTROL
H
TX_LB
TX_HB
SW_EN
L
Sleep
H
RX2
H
H
H
BS
L
H
H
C105
R101
28 TX_LB_IN
V
B
A
T
T
5
6
V
B
A
T
T
21
VRAMP
9
G
10
G
12
RX1
18
16
RX2
26
SW_EN
20
TXEN
TX_HB_IN
27
3
G
4
1
4
2
G
G
4
3
4
4
G
4
G
G
7
8
G
G
33
G
G
34
G
35
G
3
6
G
3
7
3
8
G
G
3
9
4
0
G
G
22
G
G
23
G
24
29
G
G
30
2
G
31
G
G
32
11
A
N
T
BS
25
G
1
G
13
14
G
G
15
17
G
G
19
PAM100
R103
C103
R115
L108
C112
D
10
1
L130
L111
R111
L118
R100
L101
L106
C160
L102
L104
C107
C101
L119
RFS100
A
2
C
1
3
G
G
4
ANT100
ANT101
L109
L113
C104
D
10
3
L133
L110
L117
D
10
2
R104
D
10
0
L107
R102
L114
VBAT
R105
10
8
GSM850_OUT
GSM850_OUT 9
6
GSM900_OUT
7
GSM900_OUT
IN
1
F100
G
2
3
G
4
G
5
G
G
BAL1
BAL2 7
6
BAL2
2
G
G
3
4
G
5
G
10
G
UNBAL
1
F102
BAL1 9
8
L123
L120
C106
L122
L121
L112
L115
L105
PCS_RX_A
PCS_RX_B
GSM_850_RX_A
GSM_850_RX_B
GSM_900_RX_A
GSM_900_RX_B
DCS_RX_B
DCS_RX_A
SEL_BAND
EN_TR_SW
VRAMP
EN_TX
PA_LB
PA_HB
ANT100
ANT101
A
N
T
10
2
C101
C103
C104
C105
C106
C
10
7
C108
C109
C
1
11
C
1
12
C
11
3
C114
C115
C
1
16
C
11
7
C
11
9
C120
C
12
1
C
12
2
C
1
23
C
1
24
C
12
5
C126
C127
C
12
8
C
12
9
C
13
0
C131
C132
C
1
33
C134
C135
C136
C138
C
1
39
C140
C141
C
14
2
C
14
3
C145
C146
C
14
8
C149
C
15
0
C151
C
15
2
C153
C
1
54
C
16
0
C202
C
2
03
C
20
4
C205
C206
C207
C
2
08
C209
C210
C
21
1
C212
C213
C214
C215
C
2
16
C
2
17
C218
C219
C220
C
22
1
C
2
22
C
2
23
C224
C
22
5
C226
C
22
8
C230
C232
C233
C234
C235
C
23
6
C
23
7
C
23
8
C308
C309
C402
C403
C410
C415
C604
C610
D100
D101
D102
D103
F100
F101
F102
G601
G605
L101
L1
02
L1
04
L105
L106
L107
L108
L1
09
L1
10
L111
L112
L1
13
L114
L115
L1
1
6
L117
L1
18
L1
1
9
L1
20
L121
L122
L123
L1
2
4
L125
L126
L1
27
L1
28
L129
L130
L132
L133
L200
L201
L203
L6
00
L6
01
L6
02
L6
03
OSC100
O
S
C
2
0
0
P
A
M
10
0
Q50
0
R100
R101
R102
R103
R104
R
10
5
R
1
06
R
10
7
R
10
8
R109
R110
R111
R
11
4
R115
R200
R206
R
20
7
R
20
8
R209
R210
R212
R
2
16
R217
R220
R221
R22 2
R223
R
2
24
R225
R226
R
22
7
R
2
28
R
22
9
R
23
0
R
2
31
R
23
2
R233
R
4
1
1
R500
R503
R504
RFS100
TP
_D
_C
LK
TP_D_CLK_N
TP
_F
_C
LK
TP
10
0
T
P
1
02
TP
10
3
T
P
1
04
TP105
T
P
10
6
TP
10
7
TP108
TP
10
9
TP110
TP
11
1
TP112
TP113
TP114
TP115
TP
116
TP117
TP118
TP119
TP
50
1
TP502
U
10
0
U
1
01
U
10
2
U
2
0
0
U201
U
C
P
2
00
V601
VR200