LG LG-600 Series, Repair Manual, Page: 4 / 90

GSM Handsets Lab.
4
1. INTRODUCTION
BB Baseband
LDO Low Drop Output
LED Light Emitting Diode
CC-CV Constant Current
–
Constant Voltage
CLA Cigar Lighter Adapter
DAC Digital to Analog Converter
DCS Digital Communication System
DSP Digital Signal Processing
EL Electroluminescence
ESD Electrostatic Discharge
FPCB Flexible Printed Circuit Board
GMSK Gaussian Minimum Shift Keying
GPIB General Purpose Interface Bus
GPRS General Packet Radio Service
GSM Global System for Mobile Communications
UART Universal Asynchronous Receiver/Transmitter
IF Intermediate Frequency
LCD Liquid Crystal Display
PCB Printed Circuit Board
PSTN Public Switched Telephone Network
RF Radio Frequency
RTC Real Time Clock
SIM Subscriber Identity Module
SRAM Static Random Access Memory
TA Travel Adapter
TDD Time Division Duplex
TDMA Time Division Multiple Access
WAP Wireless Application Protocol
IPUI International Portable User Identity
•1.2 Abbreviations