4. TROUBLE SHOOTING
- 92 -
5. Checking PAM Circuit
35dBm
33dBm
4dB Atten
3dB Atten
C411
10p
C402
0.5p
100p
C400
R401
24
18p
C410
0.01u
C408
C403
0.5p
R409
300
R410
18
C404
27p
220
R407
C409
3p
VBAT
16
GND8
17
18
GND9
7
GSM_IN
8
GSM_OUT
TX_ENABLE
3
VBATT
4
6
VRAMP
22
GND14
23
24
GND15
25
GND16
GND17
26
27
GND18
GND19
28
11
GND2
GND20
29
30
GND21
GND22
31
32
GND23
GND3
12
GND4
13
GND5
14
15
GND6
GND7
2
BAND_SELECT
DCS_PCS_IN
1
DCS_PCS_OUT
9
5
GND
10
GND1
GND10
19
20
GND11
21
GND12
GND13
U400
RF3166
C407
33u
R411
300
R402
220
C405
NA
1.5p
C406
220
R408
L400
10nH
3.9nH
L402
R400
220
220
R405
PA_ON
APC
DCS_PCS_TX
GSM_TX
RFOL
RFOH
PA_BAND
Summary of Contents for KG330
Page 3: ... 4 ...
Page 10: ...3 Technical Brief 11 BaseBand Components Speaker Vibrator Speaker ...
Page 14: ...3 Technical Brief 15 3 3 Analog Main Processor ABB Block diagram of the TWL3016 ...
Page 38: ...4 TROUBLE SHOOTING 39 Speaker Trouble 2 Test Point U209 Speaker Soldering Check C536 C535 ...
Page 75: ...4 TROUBLE SHOOTING 76 2 Checking VCTCXO Circuit ...
Page 77: ...4 TROUBLE SHOOTING 78 3 Checking RF Chipset Control Signal ...
Page 85: ...4 TROUBLE SHOOTING 86 2 Checking VCTCXO Circuit ...
Page 87: ...4 TROUBLE SHOOTING 88 3 Checking RF Chipset Control Signal ...
Page 98: ...5 Downloading Software 99 The Procedure of Downloading Software 4 4 Press Start Button MG210 ...
Page 103: ... 104 ...
Page 115: ... 116 8 PCB Layout Main PCB layout TOP ...
Page 116: ... 117 8 PCB Layout Main PCB layout Bottom ...
Page 117: ... 118 8 PCB Layout Camera Sub PCB ...
Page 118: ... 119 8 PCB Layout Camera Sub PCB ...
Page 119: ... 120 ...
Page 122: ...9 Calibration 123 4 Click on CALIBRATION START button KG330 338 KG330 338 ...
Page 124: ...9 Calibration 125 2 Standalone Test Setup Oscilloscope ...
Page 126: ...9 Calibration 127 3 TX Standalone Test Setup ...
Page 128: ...9 Calibration 129 4 RX Standalone Test Setup ...
Page 129: ... 130 ...
Page 131: ... 132 ...
Page 154: ...Note ...
Page 155: ...Note ...