5. Trouble shooting
- 108 -
5.13.11 Checking Transceiver Output Signals
Checking Points
RF Transceive
G
E
TX1
36
37
TX2
VBIAS
34
VDDBIAS2V8
31
VDDDIG1V5
8
5
VDDDIG2V8
39
VDDMIX2V8
35
VDDTX1V5
VDDTX2V8
38
32
FE1
33
FE2
9
26
GND2
GND3
40
41
GND4
RX1
29
30
RX1X
RX2
27
28
RX2X
24
RX3X
25
PMB6272
U404
1
A
AX
2
3
B
BX
4
7
CLK
DA
6
NA
C449
0
R425
2.2u
C435
R415
10
NA
NA
C455
C454
4700p
C424
NA
C443
VRF2V85
2.2u
C434
NA
C448
R419
0
R427
0
U401
MODE
Transceiver Output
GMSK
Fixed
8PSK
Ramp Burst Control
Figure 22. Transceiver Output Circuit
Figure 23. Transceiver Output
Table 3. Transceiver Output Operation
Содержание Prada KE850
Страница 1: ...Date March 2007 Issue 1 0 Service Manual Model KE850 Service Manual KE850 ...
Страница 3: ... 4 ...
Страница 5: ... 6 ...
Страница 70: ...4 PCB layout 71 4 PCB layout 4 1 Main Sub PCB component placement Main PCB Top Main PCB Top placement ...
Страница 71: ...4 PCB layout 72 Main PCB bottom Main PCB bottom placement ...
Страница 115: ... 116 6 Download S W upgrade 6 Press the START button ...
Страница 116: ... 117 6 Download S W upgrade 7 Stand by condition Wait is displayed connect the Phone KE850 KE850P40 7 V09a ...
Страница 117: ...6 Download S W upgrade 118 KE850 KE850P40 7 V09a KE850 KE850P40 7 V09a ...
Страница 127: ... 128 LGMC 8 pcb layout ...
Страница 128: ... 129 LGMC 8 pcb layout ...
Страница 129: ... 130 LGMC 8 pcb layout ...
Страница 130: ... 131 LGMC 8 pcb layout ...
Страница 131: ... 132 8 pcb layout ...
Страница 132: ... 133 8 pcb layout ...
Страница 133: ... 134 8 pcb layout ...
Страница 134: ... 135 8 pcb layout ...
Страница 135: ... 136 8 pcb layout ...
Страница 136: ... 137 8 pcb layout ...
Страница 137: ... 138 ...
Страница 139: ...9 RF Calibration 140 9 2 3 Click SETTING Menu 9 2 4 Setup Ezlooks menu such as the following figure ...
Страница 141: ...9 RF Calibration 142 9 2 7 Select MODEL 9 2 8 Click START for RF calibration 9 2 9 RF Calibration finishes ...
Страница 142: ...9 RF Calibration 143 9 2 10 Calibration data will be saved to the following folder Saving format year month day PASS ...
Страница 149: ... 150 ...
Страница 151: ... 152 ...
Страница 172: ...Note ...
Страница 173: ...Note ...