Service Manuals, User Guides, Schematic Diagrams or docs for : LG Mobile Phone LG G1800 LG G1800 2

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G1800




   Version: 1A
Every care has been taken to ensure that contents of this service manual give an accurate representation
of the equipment. However, DARTS TECHNOLOGIES CORP. accepts no responsibility for inaccuracies
which may occur and reserves the right to make changes to the design without prior notice.


CONTENTS
1. INTRODUCTION
      1.1 Purpose of the Manual
      1.2 Structure of the Manual
      1.3 Servicing Responsibilities


2. GENERAL DESCRIPTION
     2.1 General
     2.2 Features
       2.3 Hand portable Main Kits


3. OPERATING INSTRUCTIONS
     3.1 General
     3.2 Liquid Crystal Display
     3.3 Location of Controls
     3.4 Alpha Entry
         3.4.1. Character Set / Key Assignments
     3.5 Public Man Machine Interface (MMI)
         3.5.1. Reading the Phonebook Memory Location
         3.5.2. Features for Factory Service
         3.5.3. Tips for Call Option
     3.6 Security Procedure
     3.7 Troubleshooting


4. ASSEMBLY INSTRUCTIONS
     4.1 Assembly Structure
     4.2 Antenna sub assembly
         4.2.1. Appendix 1 Speaker module sub assembly
     4.3 PCB sub assembly
     4.4 Top case sub assembly
     4.5 Bottom case sub assembly
     4.6 Main assembly
5. TECHNICAL SPECIFICATION
     5.1 TX Characteristics
         5.1.1. Frequency Error
         5.1.2. Modulation Phase Error
         5.1.3. Output RF Spectrum due to Modulation
         5.1.4. Output RF Spectrum due to Switching Transients
         5.1.5. Spurious Emissions at Antenna Connector
         5.1.6. Residual Peak Power
     5.2 Rx Characteristics
         5.2.1. Sensitivity


6. BLOCK DIAGRAM
     6.1 G1800 Base band Hardware Typical application and Block Diagram
     6.2 G1800 RF Block Diagram


7. G1800 PCB PLACEMENT


8.   SPPL list
                                            IMPORTANT
This document is intended for use by qualified service personnel only.


Company Policy
Our policy is of continuous development; details of all technical modifications will be included with service
bulletins.
While every endeavor has been made to ensure the accuracy of this document, some errors may exist. If any
errors are found by the reader, please notified it to company
                                 Warnings and Cautions
Please refer to the phone's user guide for instructions relating to operation, care and
maintenance including important safety information. Note also the following:

Warnings:
1. CARE MUST BE TAKEN ON INSTALLATION IN VEHICLES FITTED WITH ELECTRONIC ENGINE
   MANAGEMENT SYSTEMS AND ANTI

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