4.6.1. Checking VCO Block
Test Point (TXVCO Level)
Schematic of RF TXVCO
4. TROUBLE SHOOTING
- 88 -
TP1
TP3
TP4
TP6
TP5
TP2
15p
C1050
R1018
100
150
R1021
FB1000
270
R1024
15p
C1051
200
R1023
220
R1022
GND1
2
GND2
4
GND3
6
7
GND4
GND5
11
GND6
12
OUT1
5
OUT2
1
10
SW1
8
SW2
3
VB
VC
9
MQW6V0C869M
U1002
R1025
51
C1047
10u
100
R1019
24
R1016
C1048
0.1u
C1049
33p
15
R1017
GSM_TX_VCO_1_EN_N
GSM_TX_VCO_0_EN_N
VREG_RFTX_2.85V
TP1
TP5
TP6
TP4
TP2
TP3
Z3X-BOX.COM
Содержание L602i
Страница 3: ... 4 Z 3 X B O X C O M ...
Страница 34: ...3 TECHNICAL BRIEF 35 3 7 Hardware Architecture Figure Simplified Block Diagram Z 3 X B O X C O M ...
Страница 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Страница 71: ...4 TROUBLE SHOOTING 72 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH Z 3 X B O X C O M ...
Страница 83: ...4 TROUBLE SHOOTING 84 4 5 5 Check RF Rx Level TP1 TP3 TP4 Bias1 TP2 Z 3 X B O X C O M ...
Страница 101: ...4 TROUBLE SHOOTING 102 LCD Control data flow Z 3 X B O X C O M ...
Страница 109: ...4 TROUBLE SHOOTING 110 AUDIO AMP R502 C501 R503 FP500 501 CN600 PIN 14 15 Speaker Soldering Point Z 3 X B O X C O M ...
Страница 113: ...4 TROUBLE SHOOTING 114 Z 3 X B O X C O M ...
Страница 126: ...5 DOWNLOAD 127 Download of Module image in progress Download process has completed successfully Z 3 X B O X C O M ...
Страница 130: ...5 DOWNLOAD 131 Click on X button to use another function Z 3 X B O X C O M ...
Страница 134: ...6 BLOCK DIAGRAM 135 Table 2 1 1 RF Block Component Z 3 X B O X C O M ...
Страница 137: ...6 BLOCK DIAGRAM 138 Top Side Z 3 X B O X C O M ...
Страница 138: ...6 BLOCK DIAGRAM 139 Bottom Side Z 3 X B O X C O M ...
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Страница 149: ... 150 8 PCB LAYOUT Z 3 X B O X C O M ...
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Страница 151: ... 152 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 152: ... 153 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 153: ... 154 LGMC 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 154: ... 155 LGMC 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 155: ... 156 8 PCB LAYOUT Z 3 X B O X C O M ...
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