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ANT100
ANT105
C118
1
2mm
VBAT
ANT_SEL2
ANT_SEL1
C1043
C1044
22u
ANT_SEL0
47p
ANT_SEL3
R107
GSM_PA_RAMP
2.2K
FL1008
6
ANT
WCDMA_2100_RTX
L1035
L1031
2
1.5n
DNI
GND1
4
GND2
5
GND3
1950MHz,2140MHz
Band I
TP2
FL2
6
ANT
RX1
WCDMA_850_RTX
RX2
C1081
L1021
TX
15n
DNI
2
GND1
4
GND2
GND5
5
GND3
GND4
Band V
LGE Internal Use Only
SW100
100p
L102
C109
ANT
1
100p
100p
R101
0.75p
GND
7
VBATT
18
GPCTRL2
17
GPCTRL1
19
GPCTRL0
20
TX_EN
21
VRAMP
22
PGND1
23
PGND2
24
GND2
8
C1024
39p
R116
GSM_TX
75
GSM850(824-849MHz)
11dB
GSM900(880-915MHz)
R113
DCS_PCS_TX
47
DCS(1710-1785 MHz)
7dB
PCS(1850-1910 MHz)
1
RX
3
TX
9
GND6
8
GND5
7
GND4
RX_WCDMA_HB
C144
DNI
3.3p
L116
PDET_IN
TP3
L112
3.3p
RX_WCDMA_850_P
C138
C137
DNI
6.8n
L114
3.3p
RX_WCDMA_850_M
1
8
L129
3.3n
3
9
C197
7
DNI
For testing, Max power output is needed.
2
COMMON
G3
4 3
G4
C116
DNI
TP1
TRX2
13
TRX1
12
RX2
11
RX1
10
GND7
U101
16
GND4
6
GND3
9
GND8
2
GND1
1
C1091
C1092
56p
22p
VBAT
C174
C175
U102
2.2u
330p
11
PGND
10
VCC2
VCC1
9
RFOUT
RFIN
L121
3n
8
ISO
VBP
7
GND
VMODE
C180
C183
6
CPL
VEN
1p
1p
R122
51
R124
R123
8dB
110
110
VBAT
C187
C188
2.2u
680p
U103
11
PGND
10
1
VCC2
VCC1
9
2
RFOUT
RFIN
8
3
ISO
VBP
7
4
GND
VMODE
6
5
CPL
VEN
C198
DNI
- 46 -
Copyright © 01 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
R100
68n
FL1001
1
1842_5/1960MHz
4
GND5
2
L1006
GND1
3
3.3n
GND2
5
GND3
WCDMA_850_RTX
WCDMA_2100_RTX
FL1002
1 IN
L1012
GND
4
9.1n
C172
Close to pin1
330p
1950MHz
FL102
1
2
4
1
OUT
IN
3
G3
G2
G1
4
5
3
2
PA_R0
5
PA_ON0
3.9n
C182
C184
C185
100p
100p
TP4
C186
680p
DNI
C121
FL104
33p
C194
4
1
OUT
IN
GND
G3
G2
G1
836.5MHz
5
3
2
PA_R0
22n
PA_ON1
C199
C200
C201
100p
100p
Only for training and service purposes
8
1960MHz_1
9
1960MHz_2
6
1842_5MHz_1
7
1842_5MHz_2
10
GND4
9
O1_1
8
O1_2
7
O2_1
O2_2
6
10 5 3 2
WCDMA_2100_TX_OUT
3.3n
C181
WCDMA_850_TX_OUT
C196
15n
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Troubleshooting
