LG W3000 Manual de usuario
GSM Phone
SERVICE MANUAL
MODEL : W3000
P/N : XXXXX JUNE, 2002
SERVICE MANUAL MODEL : W3000
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1. INTRODUCTION.......................................4
1.1 Purpose ..................................................4
1.2 Regulatory Information .......................... 4
A. Security ..............................................4
B. Incidence of Harm ..............................4
C. Changes in Service ............................4
D. Maintenance Limitations ....................4
E. Notice of Radiated Emissions .............5
F. Pictures ..............................................5
G. Interference and Attenuation .............5
H. Electrostatic Sensitive Devices ..........5
1.3 Abbreviations ......................................... 6
2. PERFORMANCE .....................................8
2.1 H/W Feature ...........................................8
2.2 Technical Specification .......................... 9
3. TECHNICAL BRIEF ............................ 13
3.1 General Descreption ............................ 13
3.2 Receiver ............................................... 13
A. RF front end .....................................14
B. Demodulator and
baseband processing ...................... 14
C. DC Offset Compensation ................ 14
3.3 Transmitter Part ................................... 15
A. IF Modulator .................................... 15
B. OPLL ............................................... 16
C. Synthesizer ......................................16
D. TX APC Part ....................................17
E. Power Amplifier ................................17
3.4 13 MHz Clock ...................................... 18
3.5 Power Supplies and Control Signals ....18
3.6 Digital Main Processor ......................... 19
3.7 Analog Main Processor ........................ 24
3.8 Power Management ..............................26
3.9 Memories ..............................................28
3.10 Display and Interfaces ........................28
3.11 Keypad Switches and Scanning ..........29
3.12 Microphone .........................................30
3.13 Earpiece ............................................. 31
3.14 Hands-free Interface .......................... 32
3.15 Headset Jack Interface .......................32
3.16 Key Back-light Illumination ..................32
3.17 LCD Back-light Illumination ................ 33
3.18 Multi-Color LED Illumination .............. 33
3.19 Speaker & MIDI IC ............................. 34
4. TROUBLE SHOOTING ..................... 35
4.1 RF Components ................................. 35
4.2 Tx Trouble .......................................... 44
4.3 Power on Trouble ............................... 60
4.4 Charging Trouble ............................... 62
4.5 LCD Trouble ....................................... 64
4.6 Receiver Trouble ................................ 66
4.7 Speaker Trouble ................................. 69
4.8 Mic Trouble ..........................................72
4.9 Vibrator Trouble ................................. 75
4.10 Backlight Trouble ............................. 77
4.11 Folder on/off Trouble ........................ 79
4.12 SIM Detect Trouble .......................... 81
4.13 Earphone Trouble ............................ 83
4.14 HFK Trouble ..................................... 87
5. ASSEMBLY INSTRUCTION ............ 95
5.1 Disassembly ....................................... 95
6. DOWNLOAD ....................................... 102
6.1 Download Setup ............................... 102
6.2 Download Procedure ........................ 103
Table Of Contents
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7. BLOCK DIAGRAM ............................. 106
7.1 Main Board ....................................... 106
7.2 FPCB ................................................ 107
7.3 RF .................................................... 107
8. CIRCUIT DIAGRAM ........................... 109
8.1 Baseband Interface .......................... 109
8.2 MIDI .................................................. 110
8.3 KYE, I/F & LCD CON ....................... 111
8.4 RF .................................................... 112
9. PCB LAYOUT ..................................... 113
10. ENGINEERING MODE .................. 115
10.1 BB Test [MENU 1] ........................ 115
10.2 RF Test [MENU 2] ........................ 117
10.3 MF Mode [MENU 3] ...................... 118
10.4 Trace option [MENU 4] ................. 119
10.5 Call Timer [MENU 5] ..................... 119
10.6 Fact. Reset [MENU 6] ................... 119
10.7 S/W version [MENU 7] .................. 119
11. STAND ALONE TEST ................... 120
11.1 Introduction ................................... 120
11.2 Setting Method ............................. 120
11.3 Means of Test ............................... 120
12. AUTO CALIBRATION ................... 121
12.1 Overview ....................................... 121
12.2 Requirements ............................... 121
12.3 Menu and settings ........................ 121
12.4 AGC .............................................. 123
12.5 APC .............................................. 123
12.6 ADC .............................................. 123
12.7 Setting .......................................... 123
12.8 How to do calibration .................... 123
13. EXPLODED VIEW &
REPLACEMENT PART LIST ...... 124
13.1 Exploded View .............................. 124
13.2 Accessories .................................. 126
13.3 Replacement Part List .................. 127
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REVISED HISTORY
The information in this manual is subject to change without notice and should not be construed as
a commitment by LGE Inc. Furthermore, LGE Inc. reserves the right, without notice, to make
changes to equipment design as advances in engineering and manufacturing methods warrant.
This manual provides the information necessary to install, program, operate and maintain the LG-
W3000.
DATE ISSUE CONTENTS OF CHANGES S/W VERSION
JULY/2002 ISSUE 1 Initial Release
1. INTRODUCTION
- 4 -
1. INTRODUCTION
1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the LG-W3000.
1.2 Regulatory Information
A. Security
Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for
example, persons other than your company’s employees, agents, subcontractors, or person
working on your company’s behalf) can result in substantial additional charges for your
telecommunications services. System users are responsible for the security of own system. There
are may be risks of toll fraud associated with your telecommunications system. System users are
responsible for programming and configuring the equipment to prevent unauthorized use. LGE does
not warrant that this product is immune from the above case but will prevent unauthorized use of
common-carrier telecommunication service of facilities accessed through or connected to it. LGE
will not be responsible for any charges that result from such unauthorized use.
B. Incidence of Harm
If a telephone company determines that the equipment provided to customer is faulty and possibly
causing harm or interruption in service to the telephone network, it should disconnect telephone
service until repair can be done. A telephone company may temporarily disconnect service as long
as repair is not done.
C. Changes in Service
A local telephone company may make changes in its communications facilities or procedure. If
these changes could reasonably be expected to affect the use of the LG-W3000 or compatibility
with the network, the telephone company is required to give advanced written notice to the user,
allowing the user to take appropriate steps to maintain telephone service.
D. Maintenance Limitations
Maintenance limitations on the LG-W3000 must be performed only by the LGE or its authorized
agent. The user may not make any changes and/or repairs expect as specifically noted in this
manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of
the system and may void any remaining warranty.
1. INTRODUCTION
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E. Notice of Radiated Emissions
The LG-W3000 complies with rules regarding radiation and radio frequency emission as defined by
local regulatory agencies. In accordance with these agencies, you may be required to provide
information such as the following to the end user.
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
G. Interference and Attenuation
An LG-W3000 may interfere with sensitive laboratory equipment, medical equipment, etc.
Interference from unsuppressed engines or electric motors may cause problems.
H. Electrostatic Sensitive Devices
ATTENTION
Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign.
Following information is ESD handling:
Service personnel should ground themselves by using a wrist strap when exchange
systemboards.
When repairs are made to a system board, they should spread the floor with anti-static mat which
is also grounded.
Use a suitable, grounded soldering iron.
Keep sensitive parts in these protective packages until these are used.
When returning system boards or parts like EEPROM to the factory, use the protective package
as described.
1. INTRODUCTION
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1.3 Abbreviations
For the purposes of this manual, following abbreviations apply:0
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 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
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
LG-W3000 LG GSM Phone
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
SAW Surface Acoustic Wave
SIM Subscriber Identity Module
SLR Sending Loudness Rating
SRAM Static Random Access Memory
STMR Side Tone Masking Rating
TA Travel Adapter
1. INTRODUCTION
- 7 -
TDD Time Division Duplex
TDMA Time Division Multiple Access
UART Universal Asynchronous Receiver/Transmitter
VCO Voltage Controlled Oscillator
VCTCXO Voltage Control Temperature Compensated Crystal Oscillator
WAP Wireless Application Protocol
2. PERFORMANCE
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2. PERFORMANCE
2.1 H/W Features
Item Feature Comment
Li-ion, 750 mAh
Standard Battery Size: 41 73.9 5mm
Weight: 22 g
AVG TCVR Current GSM , EGSM: 243 mA, DCS: 209 mA
Stand by Current < 4 mA
Talk time Up to 3 hours (GSM TX Level 7)
Stand by time Up to 200 hours (Paging Period: 9, RSSI: -85 dBm)
Charging time 2 hours 30mins
RX Sensitivity GSM, EGSM: -108 dBm, DCS: -107 dBm
TX output power GSM, EGSM: 32 dBm (Level 5)
DCS: 29.5 dBm (Level 0)
GPRS compatibility Class 10 (This only applies to G5200)
SIM card type 3V Small
Display 128 128 dots LCD(Main) , 96 64 dotsLCD(Sub)
Soft icons
Key Pad
Status Indicator 0 ~ 9, #, *, Navigation Key, Up/Down Side Key
Side Key, Confirm Key, Clear Key , Hot Key)
Send Key, END/PWR Key
ANT External
EAR Phone Jack Yes
PC Synchronization Yes
Speech coding EFR/FR/HR
Data and Fax Yes
Vibrator Yes
Receiver Yes
Roud Speaker Yes
Voice Recoding Yes
C-Mike Yes
Travel Adapter Yes
Options Hands-free kit, CLA, Data Kit
2. PERFORMANCE
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2.2 Technical Specification
Item Description Specification
GSM
TX: 890 + n 0.2 MHz
RX: 935 + n 0.2 MHz (n = 1 ~ 124)
EGSM
1Frequency Band TX: 890 + (n – 1024) 0.2 MHz
RX: 935 + (n – 1024) 0.2 MHz (n = 975 ~ 1024)
DCS
TX: 1710 + (n – 512) 0.2 MHz
Rx: 1805 + (n – 512) 0.2 MHz (n = 512 ~ 885)
2Phase Error RMS < 5 degrees
Peak < 20 degrees
3Frequency Error < 0.1 ppm
GSM, EGSM
Level Power Toler. Level Power Toler.
533 dBm 2dB 13 17 dBm 3dB
631 dBm 3dB 14 15 dBm 3dB
729 dBm 3dB 15 13 dBm 3dB
827 dBm 3dB 16 11 dBm 5dB
925 dBm 3dB 17 9 dBm 5dB
10 23 dBm 3dB 18 7 dBm 5dB
11 21 dBm 3dB 19 5 dBm 5dB
4Power Level 12 19 dBm 3dB
DCS
Level Power Toler. Level Power Toler.
030 dBm 2dB 8 14 dBm 3dB
128 dBm 3dB 9 12 dBm 4dB
226 dBm 3dB 10 10 dBm 4dB
324 dBm 3dB 11 8 dBm 4dB
422 dBm 3dB 12 6 dBm 4dB
520 dBm 3dB 13 4 dBm 4dB
618 dBm 3dB 14 2 dBm 5dB
716 dBm 3dB 15 0 dBm 5dB
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