3. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
24
K
R1105
0.5p
L1107
82n
C1104
SW1100
4
3
2
ANT
COMMON
G3
G4
R1104 10K
C1118
220p
U1100 RF3237
GND9
22
GND1
1
HB_RFIN
3
VRAMP
5
TX_E
N
6
GND5
13
GND8
21
TRX2
14
AN
T
20
MODE
7
BS1
8
BS2
9
VBATT
10
GND3
11
LB_RFIN
4
TRX3
15
GND6
16
GND2
2
GND4
12
GND7
19
TRX6
18
TRX5
17
GND10
23
GND11
24
GND12
25
GND13
26
GND14
27
GND15
28
GND16
29
GND17
30
GND18
31
33p
C1111
33p
C1117
L1104
2.7n
2G_TX_LB
2G_TX_HB
( DGMS Guide )
MC-C00002-14 : ESD Protection Circuit
TP1
TP2(DCS/PCS): C1111
TP2 (850/900) : C1117