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+2.85V_VDD_RF_SW
SW201
G1
G2
ANT
C220
C221
DNI
DNI
RF Diversity
SW202
G1
G2
ANT
C250
DNI
LGE Internal Use Only
RF GSM
R206
1K
ANT_SEL0
R207
1K
ANT_SEL1
R208
1K
ANT_SEL2
R209
1K
ANT_SEL3
L203
15n
C230
C231
1u
33p
SW200
12
VC4
13
5
VDD
GSM850RX1
14
4
GND1
GND2
15
3
ANT
GSM1800/1900RX2
16
2
GND3
GSM1800/1900RX1
R129
17
1
TRX_W2100
UMTS1
UMTS3
L202
4.7K
100n
TRX_AWS
TRX_W900
+2.85V_MDM_SDCC1
4.7kohm
R128
120K
C900
C239
DNI
39p
MS_DET
C901
39p
DRX_2100_AWS_ON
2
3
L214
1.5n
G1 O1
1
IN
G2 O2
5
4
C246
C247
DNI
1p
FL201
2140MHz
900MHz
FL202
PORT2
GND
6
3
C251
DNI
2
3
5.6n
C253
FL203
R211
1
G1 O1
IN
G2 O2
DNI
5
4
C254
C255
DNI
0.5p
942.5MHz
DRX_W900_ON
C232
56p
RX_G850_M
L204
L205
DNI
7.5n
C233
56p
RX_G850_P
C242
8p
RX_PCS_DCS_M
L210
L211
1.8n
DNI
C243
8p
RX_PCS_DCS_P
C200
C201
DNI
1.8p
L200
4.7n
GSM_PA_BAND
MODE
LOW
GSM
HIGH
DCS/PCS
C202
C204
2.2u
2.2u
U200
17
C216
2.2n
PGND
16
1
RFOUT_HB
RFIN_HB
15
2
GND6
VBATT
14
3
GND5
VEN_HB
13
4
C219
L201
VCC
VMODE0
12
5
DNI
GND4
VMODE1
0.5p
11
6
GND3
VEN_LB
10
7
GND2
GND1
9
8
RFOUT_LB
RFIN_LB
C244
3.3n
DRX_2100_AWS_M
L212
R210
1.8n
DNI
C248
3.3n
DRX_2100_AWS_P
C252
1n
DRX_W900_M
L213
3.3p
C256
1n
DRX_W900_p
- 164 -
VBAT
C203
C209
C210
C211
C212
33p
47p
100p
8p
47u
C214
C215
DNI
DNI
GSM_H_PAM_ON
R0
R1
C222
33p
GSM_L_PAM_ON
C224
C225
DNI
DNI
C226
C227
C228
C229
39p
39p
39p
39p
GPS LNA
Closed to MDM RX
C281
L250
22p
GPS_M
9.1n
3
2
C283
33p
C280
O1
G1
C290
100p
C288
100p
1
IN
2.2p
O2
G2
C282
4
5
L251
22p
FL204
L252
GPS_P
9.1n
DNI
1575.42MHz
TP201
TP200
GPS JIG Port
Copyright © 2011 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
TX_GSM_HB
TX_GSM_LB
ANT
G2
G1
SW210
Only for training and service purposes
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Troubleshooting
