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4.5.5 Check RF Rx Level
Bias1
TP3
TP4
Test Point (RF Rx Level)
ANT1001
SW1000
R1038
G2
ANT
RF
G1
0
KMS-512
C1003
L1007
10nH
NA
C1005
33p
FL1000
DGM092M03
9
PCN_PCS_TX
EGSM_RX1
EGSM_RX2
11
GSM850_EGSM_TX
PCN_RX1
PCN_RX2
21
WCDMA2100
PCS_RX1
PCS_RX2
4
ANT_SEL0
CTRL1
GSM850_RX1
5
ANT_SEL1
CTRL2
GSM850_RX2
6
ANT_SEL2
CTRL3
VDD
C1018
C1019
C1020
33p
33p
33p
C1082
33p
TP2
L1028
56nH
FL1003
LP69A
ANT
TX
RX
GND1
GND6
GND2
GND5
GND3
GND4
L1030
C1093
2.7nH
100p
L1300
C1095
4.7nH
0.5p
TP3
TP1
L1011
VREG_RFRX_0_2.85V
7.5nH
12
13
14
15
16
17
18
19
7
C1015
10p
Bias1
L1029
100nH
C1096
VREG_RFRX_1_2.85V
680p
VREG_TCXO_RF_2.85V
4. TROUBLE SHOOTING
C1086
C1087
100000pF
10p
C1088
C1091
10p
100000pF
13
PLNA_OUT
14
ILNA_OUT
15
PLNA_BIAS
16
PLNA_IN
17
ILNA_BIAS
18
ILNA_IN
19
RFR6250E
VDDRF3
20
C1097
C1098
RX_IP
RX_IP
U1005
21
RX_IM
0.1u
100p
RX_IM
22
RX_QP
RX_QP
23
RX_QM
RX_QM
24
VDDA2
C1104
C1105
C1103
0.1u
5.6p
10u
C1108
C1109
470p
(PPS)
R1037
4.7K
- 85 -
TP2
TP1
TP4
C1076
1.2nH
L1024
FL1002
5.6nH
3
2
C1078
L1025
O1
G1
1
IN
NA
O2
G2
C1080
3.3p
SAFEB2G14FA0F00
4
5
NA
L1026
5.6nH
L1027
3.3nH
C1081
1.2nH
C1089
C1090
100p
0.1u
49
PGND
48
GLNA_BIAS
47
GLNA_IN
R1034
46
R_BIAS
45
11K
VDDA8
44
(1%)
SBST
43
SBDT
42
SBCK
R1035
41
VDDM
40
GRX_IP
51
39
GRX_IM
38
GRX_QP
C1099
C1100
37
10p
1u
GRX_QM
C1101
C1102
10p
0.1u
C1106
C1107
100p
0.1u
R1036
C1110
3.9n
3.3K
0.01u
C1111
(1%)
(2012)
1000p
(1%)
VREG_TCXO_RF_2.85V
SBST
SBDT
SBCK
VREG_MSMP_2.7V
VREG_TCXO_RF_2.85V
VREG_TCXO_RF_2.85V
TCXO_OUT
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Table of Contents
Troubleshooting
