4. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
95
01
C
p9
3
33p
C1055
01
01
R
03
1
VBAT
10u
C1047
75
R1013
R1009
47
19
R1014
19
R1015
33p
C1045
C1052
1.5n
DNI
C1053
SMPY0019101
U1001
SKY77336
23
22
24
21
25
20
26
19
27
18
28
17
9
8
10
7
11
6
12
5
13
4
14
3
15
2
16
1
DCS_PCS_IN
DCS_PCS_OUT
BS
GND6
TX_EN
GND5
VBATT
VCC_OUT
VAPC
GND4
NC
GND3
GND1
GND2
GSM_IN
GSM_OUT
PGND1
PGND12
PGND2
PGND11
PGND3
PGND10
PGND4
PGND9
PGND5
PGND8
PGND6
PGND7
10n
C1046
85
01
C
p3
3
75
01
C
p3
3
33p
C1051
L1013
6.8p
2.2K
R1012
C1056
12n
03
1
11
01
R
GSM_PA_RAMP
GSM_PA_BAND
GSM_PA_EN
GSM_TX_OUT
DCS_PCS_TX_OUT
0603
2mm
11dB
Atten.
7dB
1608
Atten.
3
0
6
0
0603
TP1
GSM
Quad
PAM
TP1
TP2
TP2
Schematic of GSM/DCS/PCS Tx Block