LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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4.15 Checking UMTS Block
4.15.1 Checking TX level
[Fig.] Schematic of the WCDMA Tx Block
[Fig.] Test Point of the WCDMA Tx Block
S21 : -7.2 dB
S11 : -42 dB
WCDMA
18p
C1082
DNI
C1083
2.2u
C1089
C1093
120p
C1008
33p
FL1002
B7643
ANT
GND1
GND2
GND3
GND4
GND5
GND6
RX
TX
C1005
56p
1
IN
4
O1
SFSY0031101
EFCH1950TDF1
FL1003
2
G1
3
G2
G3
5
WCDMA_2100
21
3
GND2
8
GND3
10
GND4
GND5
20
GND6
22
23
GND7
GND8
24
GSM850_EGSM_TX
11
12
GSM850_RX1
13
GSM850_RX2
9
PCN_PCS_TX
PCN_RX1
16
PCN_RX2
17
PCS_RX1
18
19
PCS_RX2
VDD
7
FL1000
DGM129M01
1
ANT
CTRL1
4
CTRL2
5
6
CTRL3
14
EGSM_RX1
15
EGSM_RX2
2
GND1
33p
C1001
C1104
DNI
0.1uF
C1002
R1030
130
51
R1028
C1087
SCDY0003801
LDC151G8820Q-359
U1003
COU
3
IN
2
OUT
1
TER
4
5.6p
NA
L1018
100nH
L1001
L1012
1.8nH
GND1
6
GND2
7
9
GND3
PGND
11
2
RFIN
RFOUT
8
1
VCC1
VCC2
10
VEN
5
VMODE0
4
3
VMODE1
ACPM-7381
U1004
C1088
1.5nH
L1000
15nH
33p
C1006
18pC1014
C1103
DNI
22p
C1096
1.8nH
R1026
R1029
130
2.2p
C1091
33p
C1007
R1027
47
C1100
33p
C1094
0.01u
NA
L1017
KMS-518
SW1000
A
C
G1
G2
R1005
C1099
1nH
C1092
0.01u
VREG_S3_2.7V
1nH
L1019
L1016 2.7nH
ANT_SEL1
ANT_SEL0
+VPWR
PDET_IN
ANT_SEL2
PA_R0
WCDMA_RX_HB
W_TX_HB_OUT
PA_ON0
TP1
TP2
TP3
TP4
Z3X-BOX.COM
Summary of Contents for KF310
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