- 111 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
5.Trouble Shooting
(RF)
Schematic of GSM850/GSM900/DCS/PCS RX Block
1K
R1024
1K
R1022
R1025 1K
2.2n
L1012
3.9p
C1055
3.9p
C1029
15n
L1002
1K
R1023
C1012
2.7p
C1019
0.1u
3.6n
L1009
2.7p
C1037
C1043
33p
2.2n
L1013
2.2p
C1051
L1011
15n
L1008
15n
2.7n
L1010
2.2p
C1094
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
RX_PCS_P
RX_PCS_M
RX_DCS_P
RX_DCS_M
RX_GSM_900_P
RX_GSM_900_M
RX_GSM_850_P
RX_GSM_850_M
GSM(925-960 MHz)
PCS(1930-1990 MHz)
GSM(869-894 MHz)
DCS(1805-1880 MHz)
TP1
TP2
Содержание GD88O
Страница 1: ...Service Manual Model GD880 Internal Use Only Service Manual GD880 Date March 2010 Issue 1 0 ...
Страница 183: ... 184 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 199: ... 200 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 217: ... 218 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...