LG LG-E960 - Page 103

4. TROUBLE SHOOTING
- 103 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Schematic of GSM(850/900)/DCS/PCS Tx Block
1KR11003
0
R11002
1KR11004
1KR11005
1KR11006
FL11012
EAT61793401
LMSWBPGF-D49
MURATA
24 23 22 21 20 19 18
17
16
15
14
13
12
29
11
30
10
31
9
32
8
33
7
34
6 5 4 3
25 2
26
1
27
28
GND8
GND7
B1TX
B1RX2
GND1B1RX1
B2TX
B8TX
GSM1800/1900TX
GSM850/900TX
GND10
GND2
GND9
ANT
GSM850RX2
GND3
GSM850RX1
VDD
GSM1800/1900RX2
CTL1
GSM1800/1900RX1
CTL2
CTL3
CTL4
TRX1
TRX2
TRX3
B8RX1 B8RX2
GND4 GND5
B2RX1 B2RX2 GND6
SW11001
Part Name=MS-156C
Vendor=HIROSE
43
2
1
ANT
COMMON
G3 G4
Part Name=20279-001E-01
Vendor=I-PEX
SW11000
G1
ANTG2
L11008
DNI
C11022
1n
L11007 2.2n
L11080 100p
VA11001
C11002
DNI
VDD_RF_SW
ANT_SW_SEL0
ANT_SW_SEL3
ANT_SW_SEL2
RX_GSM_HB_M
RX_GSM_HB_P
TX_GSM_HB
TX_ANT_LU2100
TX_ANT_U900
RX_UG900_M
RX_UG900_P
TRX_ANT_LU4
TX_ANT_LU1900
RX_LU1900_M
RX_LU2100_P
TX_GSM_LB
RX_LU2100_M
TRX_ANT_UG850
ANT_SW_SEL1
RX_LU1900_P
Rev.D
TP1
+VPWR
C11105 33p
33pC11088
C11093
33p
L11057
DNI
L11058
DNI
L11068
DNI
C11084
33p
FL11011
Part Name=SAFEB897MAM0F00
897.5 MHz
Vendor=MURATA
5 3 2
4 1
IN
OUT
G1G2G3
C11106 2.2n
L11072
DNI
2.7n
L11066
C11103
1n
C11102
100p
C11101
100p
100p
C11100
100p
C11099
100p
C11098 C11097
22u
L11071
15n
6
5
7
4
8
3
9
2
10
1
11
UMTS_LB_RF_IN
UMTS_HB_RF_IN
GSM_LB_RF_IN
GSM_HB_RF_IN
LB_EN
HB_EN
VBATT
VMODE0
GND1
VMODE1
MODE
PA_ON1_GSMHB
PA_ON0_GSMLB
PA0_R1
PA0_R0
MMMB_MODE
TX_OUT_GSM_LB
TX_OUT_GSM_HB
TX_OUT_LU2100
TX_OUT_U900
TP2
TP3