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4. TROUBLE SHOOTING
4.4.4 Front End Module Part
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
< M/S & FEM Placement>
TX
RX
RX
TX
< LOW BAND>
< HIGH BAND>
U400
FL400
SW400
X101
U102
TP 1
TP 2
< M/S & FEM Circuit>
Mode
850/900 TX
850/900 RX
1800/1900 TX
1800/1900 RX
ANT_SW1
H
L
L
H
ANT_SW2
H
L
H
L
< FEM LOGIC TABLE>
100p
C425
ANT
G1
G2
RF
GRS300-2S-H36-E3000
SW400
V_EXTH
1000p
C433
DNI
C424
47nH
L405
C431
1000p
NC1
23
NC2
24
VC1
19
20
VC2
VDD
21
GND3
12
13
GND4
GND5
14
16
GND6
GND7
18
GND8
22
15
GSM1800_1900_TX
3
GSM1800_RX1
GSM1800_RX2
4
1
GSM1900_RX1
GSM1900_RX2
2
GSM850_900_TX
17
7
GSM850_RX1
GSM850_RX2
8
5
GSM900_RX1
GSM900_RX2
6
LMSP43QC-789TEMP
FL400
ANT
11
9
GND1
10
GND2
C432
1000p
ANT_SW1
ANT_SW2
TP 2
TP 1
Содержание CP150
Страница 1: ...Service Manual Model CP150 Service Manual CP150 Date August 2008 Issue 1 0 Internal Use Only ...
Страница 117: ...Note ...
Страница 118: ...Note ...