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4. TROUBLE SHOOTING
4.6.2. Checking Ant. SW Module
Refer to chapter 3.4
4.6.3. Checking RF Tx level
ANT100
ANT101
C1007
1.2nH
L1010
C1009
1p
NA
VREG_RFRX_0_2.85V
WCDMA_800
WCDMA_2100
TP1
TP2
Test Point (RF Tx Level)
C1001
U1000
56p
3
4
OUT2
VCONT
C1003
2
5
GND
IN
1
6
OUT1
VDD
R1001
C1004
UPG2010TB-E3
10K
1000p
C1005
56p
RF_OUT
VREG_RFRX_0_2.85V
L1015
15nH
C1018
C1019
33p
0.1u
L1023
C1030
TP2
NA
C1026
27p
3.9nH
NA
L1025
C1041
10nH
Schematic of RF Tx Level
- 90 -
TP3
TP1
C1002
12p
AC_T_N
SW1000
56p
G2
FL1000
ANT
RF
G1
LMSP54MA-543
KMS-507
14
VC1
15
VC2
16
VC3
13
VDD
1
GND1
2
GND2
4
GND3
GSM1800_1900TX
5
GND4
R1004
0
8
ANT_SEL0
GND5
R1005
0
10
ANT_SEL1
GND6
R1006
0
12
ANT_SEL2
GND7
17
GND8
18
GND9
TP3
+VPWR
C1025
C1027
C1028
0.01u
0.01u
22u
L1021
NA
R1015
15K
C1039
C1038
C1040
0.01u
68p
0.01u
15
3
DCS_PCS_OUT
DCS_PCS_IN
11
4
EGSM_OUT
EGSM_IN
U1003
19
18
RSVD_GND
ENABLE
GSM_PA_EN
SMPY0014001
21
1
GSM_PA_BAND
P_GND
BS
L1000
15nH
19
GSM900_RX1
20
GSM900_RX2
21
GSM1800_RX1
22
GSM1800_RX2
23
GSM1900_RX1
24
GSM1900_RX2
3
6
GSM900TX
7
UMTS2
9
UMTS1
25
PIN_DIREC1
26
PIN_DIREC2
925-960 MHz
VREG_RFTX_2.85V
R1016
24
R1017
15
R1021
R1024
R1023
150
270
200
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Table of Contents
Troubleshooting
