LG G5500 User manual

REVISED HISTORY
DATE ISSUE CONTENTS OF CHANGES S/W VERSION
13/MAY/2003 ISSUE 0.1 Initial Release
01/Sep./2003 ISSUE 0.2
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
G5500/7050.
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Table of Contents
1. INTRODUCTION.................................. 5
1.1 Purpose ............................................….
1.2 Regulatory Information ..........................
1.3 Abbreviations .........................................
2. General Performance .....................… 8
2.1 Product Name ................................…….
2.2 Supporting Standard ……………………..
2.3 Main Parts …………………………………
2.4 H/W Features …………………………….
2.5 S/W Features …………………………….
3. H/W Circuit Description ....................13
3.1 RF Transceiver General Description ……
3.2 Receiver Part …………………………….
3.3 Digital Baseband (DBB) Processor ………
3.4 Analog Baseband (ABB) Processor …...…
3.5 Camera Circuit ……..………………………
5
5
7
8
8
8
9
11
13
13
20
25
44
4. TROUBLE SHOOTING ................… 51
4.1 Main Components Placement(G5500) ...
Main Components Placement(G7050) ...
4.2 Main Components .....................…..........
4.3 Keypad Components Placement ............
4.4 Baseband Components ..……………..…
4.5 Power On Trouble …..........…………..….
4.6 Charging Trouble ........................…..…..
4.7 LCD Display Trouble ………....................
4.8 Receiver Trouble ………….....................
4.9 Microphone Trouble ………………………
4.10 Vibrator Trouble ……….…………………
4.11 Keypad Backlight Trouble …….…………
4.12 Slide Open/Close Trouble ……….………
4.13 SIM Detect Trouble …….....……………..
51
52
53
54
55
56
57
59
61
65
68
70
72
74
5. ASSEMBLY INSTRUCTION ………....102
5.1 Disassembly (G5500) .............................
5.2 Disassembly (G7050) …........………….
102
108
8. CIRCUIT DIAGRAM .............………... 129
8.1 BB ………..…………….........................
8.2 MEMORY, etc. …………………………….
8.3 MIDI, AUDIO ………….………………….
8.4 I/O, Connector ……….…………….……
8.5 RF ………………………..….……..…….
8.6 CAMERA ………………………………...
8.7 KEYPAD ………………………………….
129
130
131
132
133
134
135
6. DOWNLOAD ……………………...……114
6.1 Download Setup .....................................
6.2 Download Procedure ………...….……….
114
115
7. SERVICE AND CALIBRATION …….. 122
4.14 Earphone Trouble ……….……………….
4.15 Infrared Data Association Trouble ……
4.16 Camera Trouble ………………………….
76
81
84
7.1 Service S/W ……....................................
7.2 Calibration ……………….…...….……….
122
125
9. PCB LAYOUT .............……………..... 137

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Table of Contents
10. ENGINEERING MODE ................... 141
11.1 Setting Method .................................….
142
11. STANDALONE TEST ..................... 142
12.1 Exploded View .................................….
12.2 Accessory ………………………………..
12.3 Replacement Parts
<Mechanic components> ………………..
Replacement Parts
<Main components>………………………
143
145
146
148
12. EXPLODED VIEW &
REPLACEMENT PART LIST.......... 143

1. Introduction
1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the G5500/7050.
1.2 Regulatory Information
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 you’re 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.
A. Security
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.
B. Incidence of Harm
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 G5500/7050 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.
C. Changes in Service
Maintenance limitations on the G5500/7050 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.
D. Maintenance Limitations
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The G5500/7050 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.
E. Notice of Radiated Emissions
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
F. Pictures
An G5500/7050 may interfere with sensitive laboratory equipment, medical equipment, etc.
Interference from unsuppressed engines or electric motors may cause problems.
G. Interference and Attenuation
H. Electrostatic Sensitive Devices
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
system boards.
• 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.
ATTENTION
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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
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
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
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
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2. General Performance
2.1 Product Name
Item Feature Comment
Supporting Standard
E-GSM/ DCS Dual Band
with seamless handover
Phase 2+
SIM Toolkit : Class 1,2,3,A~E
Frequency Range
E-GSM TX : 880 – 915 MHz
E-GSM RX : 925 – 960 MHz
DCS 1800 TX : 1710 – 1785 MHz
DCS 1800 RX : 1805 – 1880 MHz
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G5500/7050: Support GPRS (Class 10)
2.2 Supporting Standard
Application
Standard
WAP 2.0 : Yes
MMS : Yes
JAVA : MIDP v1.0.3
IrDA 1.3
G5500/7050
2.3 Main Parts: GSM Solution
Digital Baseband CALYPSO @39MHz (D751992GHH)
Analog Baseband IOTA (TWL3014CGGM)
RF Chip Aero (Multi slot) (Si4200-BM, Si4201-BM, Si4133T-BM)

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2.4 H/W Features
Item Feature Comment
Form Factor Slide Down LCD (65K Color)
Battery
Capacity
Standard: Li-Ion, 860mAh
Packing Type: Hard Pack
Cell Size: Standard
55(L)×33.7(W)×49.5(H)mm
Size Standard: 94×44×21.5mm L×W×H
Weight 89g With Battery
PCB Main PCB: 8Layers, 1t
Keypad PCB: 2Layers, 0.6t
AVG TCVR
current (mA)
Max : 260 mA (Power Level 5)
Max : 120 mA (Power Level 19) Estimated
Standby Current 4.6mA @ Paging Period 9
Standby time Up to 150 hours @ Paging Period 9
Charging time Below 3 hr. @ Power Off / 860mAh
Talk time Min : 4hr @Power Level 7
Min : 6hr @Power Level 12 @ 860mAh
RX sensitivity GSM 900 : -105 dBm
DCS 1800 : -105 dBm
TX output power GSM 900 : 32 dBm
DCS 1800 : 29 dBm
Class4 (GSM)
Class1 (DCS)
GPRS compatibility GPRS Class 10
SIM card type Plug-In SIM - 3V
Display
- LCD : 65K Color-STN (128 X160)
- Pixels : 0.219 x 0.219 mm
- View Area : 30.54 x 36.04 mm
- Active Area : 28.02 x 35.028 mm
- Backlight : White LED
Status Indicator Yes (Red, Green)
Keypad
Alphanumeric Key : 12
Function Key : 12
Side Key : 2
Total Number of Keys : 26
Function Key:
4 Key Navigation & OK,
F1, F2, SND, END/PWR,
Clear, Book Mark (Camera),
Voice Recording

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Item Feature Comment
Antenna Fixed Type
System connector 24 Pin
Ear Phone Jack 3 Pole (φ2.5mm)
PC synchronization Yes CDROM
Memory Flash : 128Mbit / SRAM : 64Mbit AMD
Speech coding FR, EFR, HR
Data & Fax Built in Data & Fax support
Vibrator Built in Vibrator
IrDA Built in IrDA PC sync support
MIDI (for Buzzer
Function) 40 Poly Buzzer Function By Using
MIDI IC
Voice Recording up to 90 sec 30sec x 3
Travel Adapter Yes
Camera Sensor VGA / CIS G7050 only
Options
Travel Adapter
Ear-Microphone
Hand Strap
Cigarette Lighter Adapter
Data Cable
Handsfree Car Kit
Simple Hands Free kit
TBD
TBD

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2.5 S/W Features
Item Feature Comment
RSSI 0~5 level Antenna
Quick Access Mode Schedule/Ring Tone/Phonebook
Camera/GPRS/Phonebook(G7050)
Battery Charging 0~3 level
Key Volume 0~5 level
Keypad Volume 0~5 level
Effect sound volume 0~5 level
Ring Volume 1~5 level
Time/Date Display Yes
Text Input T9
Multi-language Yes
PC Sync Schedule/Phonebook/SMS MS Scheduler & Outlook
Speed Dial Yes (2~9) Voice mail center →1 key
Profile Yes
CLIP/CLR Yes
Phonebook 3 Number + 1 Memo + 1 e-mail Phone (Up to 255 entries)
Last Dial Number Yes (20)
Last Received
Number Yes (20)
Last Missed Number Yes (10)
Search Number/Name Yes
Group 7 / User Editor
Fixed Dial Number Yes
Voice Memo 30 secs * 3
Call Remainder Yes
Network Selection Automatic / Manual