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5. Trouble shooting
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5.12.12 Checking PAM Control Signals
100p
C401
33u
C408
R407
0
27p
C414
C402
100p
C409
100p
VSUPPLY
100p
C403
14
GND5
GND6
16
17
GND7
19
GND8
21
GND9
1
HB_RFIN
HB_RFOUT
18
7
LB_RFIN
LB_RFOUT
12
NC1
10
15
NC2
NC3
20
3
TX_EN
VBATT
4
5
VMODE
VRAMP
6
RF3158
U401
BAND_SEL
2
GND1
8
GND10
22
23
GND11
GND2
9
11
GND3
13
GND4
MODE
HBAND_PAM_IN
LBAND_PAM_IN
TXON_PA
PA_BAND
PA_LEVEL
Figure 26. PAM Control Signals Circuit
Figure 27. Transceiver Output
Table 4. PAM Mode Operation
Checking Points
MODE
TXON PA
PA LEVEL
MODE
MODE
PA_LEVEL
TXON_PA
GMSK
LOW
Ramp Burst Control
HIGH
8PSK
HIGH
Control Amp bias
HIGH
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 ...