1. Introduction
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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
CLA
Cigar Lighter Adapter
DAC
Digital to Analog Converter
DCS
Digital Communication System
dBm
dB relative to 1 milliwatt
DSP
Digital Signal Processing
EEPROM
Electrical Erasable Programmable Read-Only Memory
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
IPUI
International Portable User Identity
IF Intermediate
Frequency
LCD
Liquid Crystal Display
LDO
Low Drop Output
LED
Light Emitting Diode
LGE LG
Electronics
OPLL
Offset Phase Locked Loop
PAM
Power Amplifier Module
PCB
Printed Circuit Board
PGA
Programmable Gain Amplifier
PLL
Phase Locked Loop
PSTN
Public Switched Telephone Network
RF
Radio Frequency
RLR
Receiving Loudness Rating
RMS
Root Mean Square
RTC
Real Time Clock
Содержание F2400
Страница 3: ......
Страница 27: ...3 TECHNICAL BRIEF 28 Figure 4 SYSTEM INTERCONNECTION OF AD6527 6527B EXTERNAL INTERFACE ...
Страница 29: ...AD6537B 3 TECHNICAL BRIEF 30 Figure 5 AD6537B FUNCTION BLOCK DIAGRAM ...
Страница 39: ...3 TECHNICAL BRIEF 40 Figure 16 AUDIO LOGIC IN AD6537B ...
Страница 43: ...4 TROUBLE SHOOTING 44 4 1 RX Trouble 4 TROUBLE SHOOTING Figure 4 1 Test Points Checking Flow ...
Страница 44: ...4 TROUBLE SHOOTING 45 1 Checking Regulator Circuit Figure 4 2 Test Points Circuit Diagram Checking Flow ...
Страница 47: ...4 TROUBLE SHOOTING 48 Checking Flow ...
Страница 48: ...4 TROUBLE SHOOTING 49 5 Checking SAW Filter Circuit Test Points Checking Flow Circuit Diagram ...
Страница 49: ...4 TROUBLE SHOOTING 50 6 Checking RX IQ Test Points Circuit Diagram Waveform Checking Flow ...
Страница 50: ...4 TROUBLE SHOOTING 51 4 2 TX Trouble Test Points Checking Flow ...
Страница 52: ...4 TROUBLE SHOOTING 53 2 Checking VCTCXO Circuit Test Points Circuit Diagram Waveform Checking Flow ...
Страница 54: ...4 TROUBLE SHOOTING 55 3 Checking Ant SW Mobile SW ...
Страница 56: ...4 TROUBLE SHOOTING 57 5 Checking TX IQ Test Points Waveform Circuit Diagram Checking Flow ...
Страница 57: ...4 TROUBLE SHOOTING 58 4 3 Power On Trouble ...
Страница 58: ...4 TROUBLE SHOOTING 59 C126 C124 D101 R112 C119 C101 U101 R399 ...
Страница 59: ...4 TROUBLE SHOOTING 60 4 4 Charging Trouble Q101 R120 D102 CN202 4 5 PIN ...
Страница 60: ...4 TROUBLE SHOOTING 61 ...
Страница 61: ...4 TROUBLE SHOOTING 62 4 5 LCD Trouble CN601 9 23 PIN C401 U402 C417 ...
Страница 62: ...4 TROUBLE SHOOTING 63 ...
Страница 63: ...4 TROUBLE SHOOTING 64 4 6 Receiver Trouble R105 R104 ...
Страница 64: ...4 TROUBLE SHOOTING 65 4 7 Speaker Trouble R213 R214 U204 C215 C216 C217 R219 R218 U203 ...
Страница 65: ...4 TROUBLE SHOOTING 66 C211 C219 C217 C216 C217 C216 ...
Страница 66: ...4 TROUBLE SHOOTING 67 4 8 MIC Trouble C108 C226 R232 R231 C225 C223 R235 R234 ...
Страница 67: ...4 TROUBLE SHOOTING 68 ...
Страница 68: ...4 TROUBLE SHOOTING 69 4 9 Vibrator Trouble R1101 R1100 Q402 D202 1 ...
Страница 69: ...4 TROUBLE SHOOTING 70 ...
Страница 70: ...4 TROUBLE SHOOTING 71 4 10 Key Backlight LED Trouble ...
Страница 71: ...4 TROUBLE SHOOTING 72 ...
Страница 72: ...4 TROUBLE SHOOTING 73 4 11 SIM Detect Trouble ...
Страница 73: ...4 TROUBLE SHOOTING 74 4 12 Ear Jack Trouble U201 C201 R201 R207 R208 J201 R209 ...
Страница 74: ...4 TROUBLE SHOOTING 75 ...
Страница 75: ...4 TROUBLE SHOOTING 76 ...
Страница 78: ...4 TROUBLE SHOOTING 79 ...
Страница 79: ...4 TROUBLE SHOOTING 80 4 14 RTC Trouble X101 R113 ...
Страница 82: ...4 TROUBLE SHOOTING 83 ...
Страница 95: ...Note 96 ...
Страница 102: ... 103 8 PCB LAYOUT ...
Страница 103: ... 104 8 PCB LAYOUT ...
Страница 109: ......