LG GW620 - Page 101

- 102 -
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
15p
C269
18n
L30
12p
C154
1n
C131
18
R9
U14SKY77195
16
87
96
10 5
11 4
12 3
13 2
14 1
15
PGND1
IN_BAND_VIIIOUT_BAND_VIII
VMODE_0GND3
VMODE_1VCC2_2
VCC2_1GND2
VEN_BAND_VIIIOUT_BAND_I
VEN_BAND_IGND1
IN_BAND_ICPL_OUT
PGND2
C174
100p
DNI
C232
330p
C246
C331
10u
100p
C142
100p
C177
12n
L10
C266
DNI
L7
NA
U23SKY77187
1
1
65
74
83
92
10 1
VCC1VCC2
RF_INRF_OUT
VMODE_1GND2
VMODE_0GND1
VENCPL
DNGP
1.5p
C274
8.2n
L44
DNI
C265
10n
L13
2.7n
L35
1.5p
C276
NA
L4
NA
L3
C157 33pF
DNIC70
C149
33pF
C148 33pF
DNI
C136
NA
L53
33
R7
3.3n
C248
C252
DNI
33pFC133
3.9n
L24
FL4
B9442
532
41
IN
OUT
G1G2G3
B9414
FL5
532
41
IN
OUT
G1G2G3
B9640
FL6
532
41
IN
OUT
G1G2G3
DNI
C156
C307
0.001uF
0.0027uHL32
SAYFP897MCA0B00FL7
75
94
2
3
8
16
ANT
RX1
RX2
TX
GND1
GND2 GND5
GND3 GND4
L56
NA
FL8 SAYFP1G95AA0B00
75
84
92
3
16
ANT RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
DNI
C247
DNI
C262
6.8p
C125
0.5p
L55
VBATT
1
8R
3.3n
L49
L33 0.0027uH
DNI
C277
DNI
C253
NA
L5
IND
13L
DNI
C233
DNI
C384
VBATT
DNI
C1
DNIR6
NA
L11
ACMD-7407FL21
75
84
92
3
16
ANT
RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
DNI
C129
DNI
C254
DNI
L45
W_1900_PA_ON
W_2100_PA_ON
W_900_PA_ON
WCDMA_PA_R0
WCDMA_PA_R0
RX_WCDMA_1900_SE
PDET_IN
RX_WCDMA_900_M
RX_WCDMA_900_P
RX_WCDMA_2100
WCDMA_900_TX_OUT
WCDMA_2100_TX_OUT
WCDMA_1900_TX_OUT
RX_WCDMA_1900_BA
W1900
(1608)
W900
W2100
Band I
Band VIII
(1608)
n7.2
151C
0.5p
L17
18n
C380
ANT4
ANTENNA_PAD
180ohms
R54
100ohms
R63
032C
p001
R53
180ohms
1nC317
C315 1n
ANT5
ANTENNA_PAD
C379
DNI
p001
532C
KMS-518 SW2
G1
A
C
G2
U20
SKY77521
1
3
2
3
3
3
4
3
30 5
29 4
28
27 20
26 19
25 18
24
23 16
22 15
21 14
12 13
11
210
39
1
8
6
717
ANT
BS1
BS2
_TXEN
HB_RF_IN
MODELB_RF_IN
RSVDGND1
GND2
RX4GND3
RX3GND4
RX2GND5
RX1GND6
GND7
WCDMA1GND8
WCDMA2GND9
WCDMA3GND10
GND11
VAPCGND12
VBATTGND13
4
D
N
GP
3
DNGP
2D
N
GP
1
DNGP
R135
30ohms
R138
62ohms
R64
100ohms
DNI
L19
ANT_SEL2
ANT_SEL3
GSM_TX
DCS_PCS_TX
5dB
9dB
2
TP1
TP2
TP3
TP4