4. TROUBLE SHOOTING
- 43 -
Microphone Trouble (3)
Voltage at
R505
is about
2.5V?
No
MIC Bias Voltage
Check the signal level at
each side of MIC Connector
Is it a few tens mVAC?
Replace the
microphone
Check the soldering of
L509, L510, C534, C537
Re-solder L509, L510,
C534, C537
MIC will work properly.
Change Main board.
Redownload
Software
Change Main Board
Good
No
Yes
Yes
No
Yes
START
No
1
1
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 ...