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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
5. Trouble shooting
GW520 service manual
1
1
0
0
0
0
1
1
0
0
UMTS3
1
0
1
0
0
0
1
0
1
0
UMTS2
1
0
0
0
0
0
1
0
0
0
UMTS1
0
0
0
0
0
1
0
0
1
0
1900 Rx
0
0
0
0
0
0
0
0
0
0
1800 Rx
0
0
0
1
0
0
0
1
0
0
900 Rx
0
0
0
1
0
1
0
1
1
0
850 Rx
0
0
0
0
1
1
0
0
1
1
1800/1900 Tx
0
0
0
0
1
0
0
0
0
1
850/900 Tx
ANT_SEL6
ANT_SEL5
(TP9)
ANT_SEL4
(TP7)
ANT_SEL3
(TP8)
ANT_SEL2
ANT_SEL1
(TP6)
VC4
(TP4)
VC3
(TP3)
VC2
(TP2)
VC1
(TP1)
1
1
0
0
0
0
1
1
0
0
UMTS3
1
0
1
0
0
0
1
0
1
0
UMTS2
1
0
0
0
0
0
1
0
0
0
UMTS1
0
0
0
0
0
1
0
0
1
0
1900 Rx
0
0
0
0
0
0
0
0
0
0
1800 Rx
0
0
0
1
0
0
0
1
0
0
900 Rx
0
0
0
1
0
1
0
1
1
0
850 Rx
0
0
0
0
1
1
0
0
1
1
1800/1900 Tx
0
0
0
0
1
0
0
0
0
1
850/900 Tx
ANT_SEL6
ANT_SEL5
(TP9)
ANT_SEL4
(TP7)
ANT_SEL3
(TP8)
ANT_SEL2
ANT_SEL1
(TP6)
VC4
(TP4)
VC3
(TP3)
VC2
(TP2)
VC1
(TP1)
120
GND4
IN
1
2
OUT
SW500
ENWY0001801
MM8430-2610RB3
GND1
3
GND2
4
5
GND3
6
100p
C547
FB503
R510
1K
ANT500
NA
C500
C545
100p
GND500
C551
1u
UMTS2
21
22
UMTS3
VC1
3
VC2
4
VC3
5
6
VC4
7
VDD
GND1
1
10
GND2
8
GND3
23
GND4
24
GND5
GSM1800_1900TX
9
GSM1800_RX1
16
17
GSM1800_RX2
GSM1900_RX1
18
19
GSM1900_RX2
11
GSM850_900TX
GSM850_RX1
12
13
GSM850_RX2
14
GSM900_RX1
15
GSM900_RX2
UMTS1
20
LMSP43QL-771
SFAY0011901
FL500
ANT
2
2V85_VRF
R508
1K
L500
3.3nH
C504
22p
C544
100p
C540
0.1u
L502
18nH
GND501
2V85_VRF
1.2p
C507
1K
R511
1.5nH
L501
1K
R509
B2
4
GND
8
VCC
Y1
7
Y2
3
EUSY0154001
NL27WZ32USG
U503
1
A1
A2
5
B1
2
6
L503
NA
100p
C546
C539
1000p
ANT_SEL2
ANT_SEL6
ANT_SEL5
ANT_SEL1
ANT_SEL4
ANT_SEL3
TP9
TP10
TP11
TP1
TP2
TP3
TP4
TP7
TP8
TP5
TP6
Содержание GW520
Страница 1: ...Service Manual Model GW520 Internal Use Only Service Manual GW520 Date July 2009 Issue 1 1 ...
Страница 155: ... 156 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 159: ... 160 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 171: ... 172 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes ...