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4. TROUBLE SHOOTING
4.6.3 Checking RF Rx Level
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TP1
TP2
TP4
TP3
L103
100nH
56p
C100
15nH
L102
ANT
G1
G2
RF
KMS-507
SW100
3.3nH
L101
U100
C101
1.5p
WCDMA
7dB
NEAR TO PAM
20dB
NEAR TO PAM
NEAR TO PAM
C154
3.9p
R122
47
C155
10p
EFCH2140TDE1
2
G1
5
G2
1
IN
3
O1
4
O2
1nH
L120
FL103
2
45
31
TR100
KRX102U
4.7nH
L125
100p
C158
3
GND1
6
GND2
GND3
7
GND4
9
11
GND5
RFIN
2
8
RFOUT
1
VCC1
VCC2
10
VMODE
4
5
VREF
U104
AWT6277R
2.7nH
L132
2.2p
C156
2.2p
C160
FL101
G1
2
G2
3
G3
5
IN
1
O1
4
4
50OHM
COUP
3
IN
2
OUT
1
EFCH1950TDF1
CP0402A1950DNTR
U103
C151
1u
L123
1.8nH
L126
12nH
L121
5.6nH
L129
4.7nH
C150
100p
3
ANT
4
PGND
RX
1
2
TX
ACMD-7602
FL102
R123
130
C157
NA
L130
10nH
L122
NA
4.7u
C149
C148
8.2p
C162
100p
2.2p
C153
L124
4.7nH
C166
10p
130
R124
2.2nH
L131
L127
R121
15nH
51
1u
C152
+VPWR
PA_R0
+VPWR
VDD_RX
PA_ON
VREG_TCXO_2.85V
PWR_DET
TP2
TP3
TP4
TP1
Содержание Vodafone KU380
Страница 1: ...Date December 2007 Issue 1 0 Service Manual KU380 Service Manual Model KU380 Internal Use Only ...
Страница 151: ... 152 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 157: ... 158 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 188: ...Note ...
Страница 189: ...Note ...