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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
5.Trouble Shooting
(RF)
Schematic of the Antenna Switch Block
1K
R1024
1K
R1022
R1025 1K
100p
C4
C3
DNI
DNI
C2
SW1001
G1
G2
ANT
G3
15n
L1002
1K
R1023
C1019
0.1u
C1043
33p
VREG_SYNTH_2.75V
FL1007
850,1900,2100MHz
6
5
4
3
7
11
9
22
21
20
13
24
12
23
10
15
8
14
1
17
16
2
19
18
PCS_RX1
PCS_RX2
ANT
PCN_RX1
PCN_RX2
GND1
EGSM_RX1
GND2
EGSM_RX2
GND3
GND4
GSM850_RX1
GND5
GSM850_RX2
WCDMA_2100
WCDMA_850
WCDMA_1900
PCN_PCS_TX
GSM850_EGSM_TX
D
D
V
1L
RT
C
2L
RT
C
3L
RT
C
4L
RT
C
SW1002
G4
G3
IN
OUT
G1
G2
68p
C1080
ANT_SEL3
ANT_SEL2
ANT_SEL1
ANT_SEL0
TP1
Содержание GD88O
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