3. TROUBLE SHOOTING
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Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
R1024
0
0
R1025
U1001
43
42
41
40
39
37
38
35
36
34
26
27
28
29
30
31
32
33
23
22
9
12
7
20
21
19
15
2
18
8
10
11
14
16
17
13
1
25
6
5
4
3
24
TRX1
GND3
VCC1
VCC2
GND4
GND17
GND1
GND1
1
GND14
GND13
GND12
GND9
GND8
GND6
RX
1
GND2
AN
T
SPDT_IN
SPDT_OU
T
RX
2
GND5
GND10
GND7
GND15
GND16
NC1
VBATT
GND20
TRX4
GND19
TRX3
GND18
TRX2
NC2
RF_I
N
SPD
T
SW
0
SW
1
HB_E
N
LB_E
N
MODE0
MODE1
PGND
+VPWR
C1015
0.1u
10u
C1016
22p
C1008
22p
C1009
100p
C1014
C1011
100p
100p
C1013
+VPWR
100p
C1012
22p
C1010
10u
C1092
PA0_R0
PA0_R1
PA_ON2_GSM_HB_EN
ANT_SW_SEL0
ANT_SW_SEL1
SPDT_SEL
GSM_TX
TRX_W900
TRX_W2100
TRX_W850
TRX_W1900
PA_ON0_GSM_LB_EN
RX_B34
RX_B39
TP2
TP3
TP4
TP5
TP7
TP6
TP1(VPWR)