LG CT815 Service Manual page 86

ANT102
R102
L104
0.75p
+2.75V
VREG_SYNTH
ANT_SEL0
ANT_SEL1
ANT_SEL2
ANT_SEL3
FL107
B7683
33p
C89 C90
33p
ANT TX
RX1
C93
RX2
GND1
DNI
GND2 GND5
GND3 GND4
SDDY0004701
Band V
TP2
W1900 TX(1850 - 1910 MHz)
FL109
ACMD-7402-TR1G
Rev.C
G1
L129 C110
G2
ANT G3
3.3nH
33p
G4
G5
L130
G6
NA
G7
Rev.C
FL112
B7684
GND3 GND6
GND2 GND5
GND1 GND4
RX_OUT
C130
L141
ANT TX_IN
33p 2.2nH
C136
SDMY0001501
DNI
Band I
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Only for training and service purposes
KMS-518
G1
A
C
G2
SW101
0 C4 0
C5
C11
L103
0.75p
100nH
TP1
L109
15nH
C34 C35
0.1u 33p
W850 TX(824 - 849 MHz)
LDC15836M20Q-360
C83
33p
C91 2.7p
RX_WCDMA_850_P
L120 L121
NA 10nH
C94 2.7p
RX_WCDMA_850_M
W850 RX(869 - 894 MHz)
SDPY0002902
Band II
C116 C115
RX_WCDMA_1900
33p 33p
L134
1.8nH
W2100 TX(1920 - 1980 MHz)
L143 C134
RX_WCDMA_2100
4.7nH
1p
C137
DNI
4. TROUBLE SHOOTING
33p
FL102
D5015
PCS_RX1
PCS_RX2
2
ANT PCN_RX1
PCN_RX2
1
GND1 EGSM_RX1
8
GND2 EGSM_RX2
10
GND3
23
GND4 GSM850_RX1
24
GND5 GSM850_RX2
WCDMA_2100
WCDMA_850
WCDMA_1900
PCN_PCS_TX
GSM850_EGSM_TX
U105
C82
C84
33p
33p
L119
NA
R133
PDET_IN
82
R134 R135
82 82
10dB
L125 C100
1nH
33p
C106
0.5p
TP3
+VPWR_WPAM
C117
C118 C119
10u
0.01u 330p
(1608)
2.7nH
6.8p
C128 L139
C133
0.5p
- 87 -
18
19
16
17
14
15
12
13
20
21
TP2
22
9
11
C85 C86
1000p 100p
WCDMA_850_ON
W850
C95
100p
AWT6321R U106
15
PGND
14 1
GND4 VEN_CELL
C97
13 2
RFOUT_CELL RFIN_CELL
12 3
VCC VMODE 33p
11 4
VCCA VBATT
10 5
GND3 NC
C99
9 6
GND2 RFIN_PCS
8 7
RFOUT_PCS VEN_PCS 33p
SMPY0015801
WCDMA_PA_R0
WCDMA_1900_ON
W1900
TP4
C120
330p
SKY77170 U108
11 1
PGND VCC1
10
VCC2
C122
9 2
GND2 RF_IN
8 3
RF_OUT VMODE1
7 4
GND1 VMODE0
6 5
CPL ENABLE
C129
C131
SMPY0017801
WCDMA_PA_R0
1000p 1000p
WCDMA_2100_ON
W2100
LGE Internal Use Only
C87
10u
(1608)
L122
2.7nH
L124
NA
L127
L132
NA
33p
L138
NA