LG 410G Manuel utilisateur

Service Manual Model : LG410G

Internal Use Only

Service Manual

LG410G

Date: April, 2009 / Issue 1.0

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Only for training and service purposes

LGE Internal Use Only

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REVISED HISTORY

DATE ISSUE CONTENTS OF CHANGES S/W VERSION

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

LG410G.

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Only for training and service purposes

1. INTRODUCTION

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Only for training and service purposes

LGE Internal Use Only

Table Of Contents

1. INTRODUCTION...............................................7

1.1 Purpose......................................................................7

1.2 Regulatory Information.................................................7

1.3. ABBREVIATION ...........................................................9

2. PERFORMANCE............................................. 10

2.1 Product Name ...........................................................10

2.2 Supporting Standard..................................................10

2.3 Main Parts: GSM Solution ..........................................10

2.4 H/W Features ..........................................................11

2.5 S/W Features ............................................................13

3. H/W Circuit Description ...............................15

3.1 Digital Main Processor (Locosto).................................15

3.2 Power Ampliﬁer Module (SKY77318) .........................20

3.3 26 MHz Clock (DCXO)................................................21

3.4 RTC(32.768KHz Crystal) ............................................22

3.5 LCD Interface(8-bit Parallel interface)..........................23

3.6 SIM Card Interface.....................................................24

3.7 KEYPAD Interface ......................................................24

3.8 Battery Charging Block Interface ................................25

3.9 RF Interface ..............................................................26

3.10 Audio Interface ........................................................28

3.11 Key LED Interface....................................................30

3.12 Vibrator Interface.....................................................30

3.13 Memory Interface ....................................................31

3.14 Power Block Interface..............................................32

4. TROUBLE SHOOTING..................................... 33

4.1 Trouble Test Set-up....................................................33

4.2 RF Part Component ...................................................34

4.3 RX Receiver Part .......................................................37

4.4 TX Transmitter Part ....................................................40

4.5 Power On Trouble ......................................................45

4.6 Charging Trouble .......................................................47

4.7 RTC Trouble ..............................................................49

4.8 LCD Trouble ..............................................................50

4.9 Speaker & Receiver Trouble........................................52

4.10 Headphone Trouble..................................................55

4.11 Microphone Trouble .................................................57

4.12 SIM Card Trouble.....................................................59

4.13 KEY backlight Trouble ..............................................61

4.14 Vibrator Trouble .......................................................63

5. Trouble shooting .......................................... 65

5.1 Download Setup ........................................................65

5.2 Download Procedure .................................................66

6. BLOCK DIAGRAM..........................................73

7. CIRCUIT DIAGRAM........................................ 75

8. BGA Pin Map ................................................ 81

9. PCB LAYOUT .................................................83

10. RF Calibration ............................................ 87

10.1 What’s the Rx Calibration? .......................................87

10.2 What’s the Tx Calibration?........................................87

10.3 Calibration program - HOT_KIMCHI ..........................88

10.4 Calibration Setting ...................................................89

10.5 Calibration Steps .....................................................89

11. EXPLODED VIEW & REPLACEMENT

PART LIST .................................................. 95

11.1 EXPLODED VIEW .....................................................95

11.2 Replacement Parts ..................................................97

11.3 Accessory .............................................................113

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Only for training and service purposes

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Only for training and service purposes

LGE Internal Use Only

1. INTRODUCTION

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1.1 Purpose

This manual provides the information necessary to repair, calibration, description and download

the features of the LG410G

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 LG410G 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 LG410G 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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Only for training and service purposes

1. INTRODUCTION

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The LG410G 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 LG410G 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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Only for training and service purposes

LGE Internal Use Only

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

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

FEM Front End Module

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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Only for training and service purposes

2. GENERAL PERFORMANCE

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2.1 Product Name

2.2 Supporting Standard

2.3 Main Parts: GSM Solution

LG410G : Support GSM

LG410G

Digital Baseband TI Locosto

RF Chip SKY77318

Item Feature Comment

Supporting Standard EGSM/GSM850/DCS/PCS

Quad-Band (850/900/1800/1900)

with seamless handover

Phase 2+(include AMR)

SIM Toolkit : Class 1,2,3

Frequency Range GSM850 TX : 824.2 –848.8

GSM850 RX : 869.2 –893.8

EGSM TX : 880.2 –914.8 MHz

EGSM RX : 925.2 –959.8 MHz

DCS1800 TX : 1710.2 –1784.8 MHz

DCS1800 RX : 1805.8 –1879.8 MHz

PCS1900 TX : 1850.2 –1909.8 MHz

PCS1900 RX : 1930.2 –1989.8 MHz

Application

Standard

SMS : Yes

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Only for training and service purposes

LGE Internal Use Only

2. GENERAL PERFORMANCE

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2.4 H/W Features

Item Feature Comment

Form Factor Folder type LCD : 65K CSTN, 128 x128

Battery

Capacity

Standard: Li-Ion, 800mAh(Min)

Packing Type: Soft Pack

Size Standard: 88 x 47 x 18.7 mm L×W×H

Weight 81g With Battery

PCB One PCB :6 Layers, 0.8t

AVG TCVR

current (mA)

Max : 225 mA (GSM, Power Level 5)

Max : 90 mA (GSM, Power Level 19)

Standby Current 1.5 mA @ Paging Period 6

Standby time 500 hours @ Paging Period 6

Charging time Below 3 hours @ Power Off /800mAh

Talk time Min : 3.5hr@Power Level 5(GSM850)

Min : 4.5hr@Power Level 0(PCS) @ 800 mAh

RX sensitivity GSM 850 : -109 dBm

DCS/PCS : -109 dBm Condition: conducted

TX output power GSM 850 : 32.5 dBm

DCS/PCS : 29.5 dBm

Class4 (GSM850)

Class1 (PCS)

SIM card type Plug-In SIM 3V

Display

Main LCD : 262k TFT

Sub LCD : 96 x 64 FSTN LCD

Backlight : White LED

Keypad

Alphanumeric Key : 12

Function Key : 10

Total Number of Keys : 22

Function Key:

5 Key Navigation,

F1, F2, C, SND, END/PWR

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