5. Trouble shooting
- 102 -
5.12.5 Checking Mobile SW & FEM
Circuit Diagram
L408
2.7nH
0.1u
C437
R406
0
ANT
G1
G2
RF
SW401
KMS-506
C404
100p
2V85_RF
10p
C462
6
TX2G
8
VCTRL1
22
21
VCTRL2
20
VCTRL3
3
VDD
EGSM_RX-
18
GMS_RX-
2
GND1
25
GND10
GND11
26
4
GND2
GND3
5
7
GND4
GND5
9
10
GND6
11
GND7
GND8
23
GND9
24
19
13
12
PCS_RX-
TX1G
FL308
YGHF-S006A
ANT
1
15
14
DCS_RX-
17
16
Checking Points
FL30
SW40
R403
R405
R441
R40
Figure 10. Mobile SW & FEM Circuit
Figure 11 Mobile SW &
Table 2. FEM RX Control Logic
RX Mode
EGSM
DCS
PCS
ANT_SW1
Off
Off
Off
ANT_SW2
On
Off
Off
ANT_SW3
Off
On
Off
Содержание KE820
Страница 1: ...Service Manual Model KE820 Service Manual KE820 Date August 2006 Issue 1 0 ...
Страница 3: ... 4 ...
Страница 5: ... 6 ...
Страница 46: ...3 TECHNICAL BRIEF 47 Figure 18 EN SET port control method ...
Страница 69: ...4 PCB layout 70 Figure 45 Main PCB bottom Figure 46 Main PCB bottom placement ...
Страница 70: ...4 PCB layout 71 Figure 47 Sub PCB top Figure 48 Sub PCB top placement ...
Страница 71: ...4 PCB layout 72 Figure 49 Sub PCB bottom Figure 50 Sub PCB bottom placement ...
Страница 114: ...6 Download S W upgrade 115 6 2 Download program user guide ...
Страница 115: ... 116 6 Download S W upgrade ...
Страница 116: ... 117 6 Download S W upgrade ...
Страница 117: ... 118 6 Download S W upgrade ...
Страница 124: ... 125 8 PCB LAYOUT ...
Страница 125: ... 126 8 PCB LAYOUT ...
Страница 126: ... 127 8 PCB LAYOUT ...
Страница 127: ... 128 8 PCB LAYOUT ...
Страница 129: ...9 RF Calibration 130 9 2 3 Click SETTING Menu 9 2 4 Setup Ezlooks menu such as the following figure ...
Страница 131: ...9 RF Calibration 132 9 2 7 Select MODEL 9 2 8 Click START for RF calibration 9 2 9 RF Calibration finishes ...
Страница 132: ...9 RF Calibration 133 9 2 10 Calibration data will be saved to the following folder Saving format year month day_PASS ...
Страница 136: ... 137 11 STANDALONE TEST 4 Click Update Info for communicating Phone and Test Program Connected ...
Страница 141: ... 142 ...
Страница 161: ...Note ...
Страница 162: ...Note ...