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1. INTRODUCTION
1.3 Abbreviations
For the purposes of this manual, following abbreviations apply:
APC
Automatic Power Control
BB
Baseband
BER
Bit Error Ratio
CC-CV
Constant Current – Constant Voltage
DAC
Digital to Analog Converter
DCS
Digital Communication System
dBm
dB relative to 1 milli watt
DSP
Digital Signal Processing
ESD
Electrostatic Discharge
FPCB
Flexible Printed Circuit Board
GMSK
Gaussian Minimum Shift Keying
GPIB
General Purpose Interface Bus
GSM
Global System for Mobile Communications
IPUI
International Portable User Identity
IF
Intermediate Frequency
LCD
Liquid Crystal Display
LDO
Low Drop Output
LED
Light Emitting Diode
OPLL
Offset Phase Locked Loop
EEPROM Electrical Erasable Programmable Read-Only Memory
Summary of Contents for B2050
Page 7: ... 6 2 PERFORMANCE 2 PERFORMANCE 2 1 H W Features ...
Page 8: ... 7 2 PERFORMANCE ...
Page 9: ... 8 2 PERFORMANCE 2 2 Technical Specification ...
Page 10: ... 9 2 PERFORMANCE ...
Page 11: ... 10 2 PERFORMANCE ...
Page 12: ... 11 2 PERFORMANCE ...
Page 13: ... 12 2 PERFORMANCE ...
Page 57: ... 56 3 Checking Ant SW Mobile SW 4 TROUBLE SHOOTING ...
Page 67: ... 66 TEST POINT 4 6 LCD Trouble 4 TROUBLE SHOOTING ...
Page 70: ... 69 4 TROUBLE SHOOTING TEST POINT 4 7 Speaker Trouble ...
Page 77: ... 76 4 TROUBLE SHOOTING 4 10 KEY backlight Trouble TEST POINT ...
Page 92: ...5 DOWNLOAD AND CALIBRATION 91 5 2 Calibration ...
Page 93: ... 92 5 DOWNLOAD AND CALIBRATION ...
Page 97: ......
Page 103: ... 102 Figure 8 1 B2050 BOTTOM SIDE PCB LAYOUT 8 PCB LAYOUT ...
Page 104: ... 103 8 PCB LAYOUT Figure 8 1 B2050 TOP SIDE PCB LAYOUT ...
Page 105: ......
Page 113: ...10 STAND ALONE TEST 112 ...
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Page 119: ......
Page 132: ... 131 ...
Page 133: ... 132 ...