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4.6.2 Checking Ant. SW Module
Refer to chapter 3.4
4.6.3 Checking RF Tx level
Test Point (RF Tx Level)
Schematic of RF Tx
TP1
TP2
TP3
UMTS RX/TX
L
H
L
H
L
L
GSM 900 RX
GSM 900 TX
L
H
H
GSM 1800/1900 TX
GSM1900 RX
1P7T SWITCH
L
H
ANT_SEL2
ANT_SEL1
H
H
L
H
RF3166
L
GSM1800 RX
ANT_SEL0
H
L
C102
0.1u
C199
6.8p
4.7nH
L121
SW100
KMS-512
ANT
G1
G2
RF
C138
3.3p
TRX
TX1
13
TX2
11
VDD
25
NC10
32
NC11
8
NC2
NC3
9
10
NC4
14
NC5
NC6
15
16
NC7
NC8
17
18
NC9
PGND1
29
PGND2
31
RX1
5
2
RX2
RX3
3
4
RX4
20
CXG1190AEQ
U100
22
ANT
CTL_A
26
27
CTL_B
CTL_C
28
GND1
1
6
GND2
12
GND3
19
GND4
21
GND5
23
GND6
24
GND7
NC1
7
30
C123
1p
C132
22u
1p
C122
0
R102
8.2nH
L104
R108
100
C139
3.3p
0
R125
10p
C103
8.2nH
L122
15p
C117
15p
C113
ANT100
C101
0.75p
0
R101
100
R105
C106
33p
ANT101
R103
0
GSM_IN
7
GSM_OUT
8
TX_ENABLE
3
VBATT
4
6
VRAMP
25
GND16
GND17
26
27
GND18
GND19
28
11
GND2
GND20
29
30
GND21
GND22
31
32
GND23
GND3
12
13
GND4
GND5
14
15
GND6
GND7
16
17
GND8
18
GND9
U102
SMPY0008901
2
BAND_SELECT
1
DCS_PCS_IN
DCS_PCS_OUT
9
5
GND
10
GND1
GND10
19
20
GND11
21
GND12
GND13
22
GND14
23
24
GND15
L101
7.5nH
ANT102
ANT_SEL2
ANT_SEL1
ANT_SEL0
VREG_RFRX_0_2.85V
TP1
TP2
TP3
Z3X-BOX.COM
Summary of Contents for U300
Page 3: ... 4 Z 3 X B O X C O M ...
Page 24: ...3 TECHNICAL BRIEF 25 Figure 3 3 1 1 RFR6250 IC functional block diagram Z 3 X B O X C O M ...
Page 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Page 76: ...4 TROUBLE SHOOTING 77 4 5 Checking WCDMA Block Z 3 X B O X C O M ...
Page 77: ...4 TROUBLE SHOOTING 78 4 3 5 1 2 Z 3 X B O X C O M ...
Page 82: ...4 TROUBLE SHOOTING 83 4 5 5 Check RF Rx Level Test Point RF Rx Level Z 3 X B O X C O M ...
Page 85: ...4 6 Checking GSM Block 4 TROUBLE SHOOTING 86 Z 3 X B O X C O M ...
Page 87: ...4 TROUBLE SHOOTING 88 Z 3 X B O X C O M ...
Page 89: ...4 TROUBLE SHOOTING 90 Z 3 X B O X C O M ...
Page 92: ...4 TROUBLE SHOOTING 93 Z 3 X B O X C O M ...
Page 95: ...4 TROUBLE SHOOTING 96 Z 3 X B O X C O M ...
Page 110: ...4 TROUBLE SHOOTING 111 C515 C516 CN501 Z 3 X B O X C O M ...
Page 116: ...4 TROUBLE SHOOTING 117 C201 C202 for MIC capacitor Z 3 X B O X C O M ...
Page 119: ...4 TROUBLE SHOOTING 120 Q400 Q401 Q402 VBATT GND Z 3 X B O X C O M ...
Page 140: ...6 BLOCK DIAGRAM 141 Z 3 X B O X C O M ...
Page 141: ...6 2 Interface Diagram U300 Interface Diagram 6 BLOCK DIAGRAM 142 Z 3 X B O X C O M ...
Page 149: ... 150 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 150: ... 151 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 151: ... 152 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 152: ... 153 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 153: ... 154 Z 3 X B O X C O M ...
Page 156: ...9 Calibration 157 Check testing object Click Start for Calibration Z 3 X B O X C O M ...
Page 157: ...9 Calibration 158 Show result of calibration Show result Z 3 X B O X C O M ...
Page 159: ... 160 Z 3 X B O X C O M ...
Page 183: ...Note Z 3 X B O X C O M ...
Page 184: ...Note Z 3 X B O X C O M ...