LG KG195 Service Manual page 7

1. Introduction
1. Introduction
This is the Electronic Service Manual for KG195 Triple Band GSM Digital Cellular Telephone from LG.
It contains specific information on repair and test procedures.
For details of user functions, general operation and installation, please refer to the User Guide.
The Service Manual is set out in the following sections.
1. Precautions for Repair Work: provides general guidelines for undertaking safe and efficient repair
work.
2. Unit Specification: provides the technical specifications for KG195 Triple Band GSM Digital
Cellular Telephone.
3. Introduction of Service Level:
a) Service Level 1: describes definition of Service Level 1, equipment and tools required for this
level.
b) Service Level 2: describes definition, equipment and tools required for Service Level 2.
4. Circuit Description: provides functional details of the circuits, block diagrams and component
purpose descriptions.
5. Servicing: defines the jigs, fixtures and test configurations required for servicing the product; and
describes the processes of assembly and disassembly.
6. Troubleshooting: provides an aid to fault finding the product. Includes, using the signal levels and
plots at various parts of the circuit.
7. Device Information: provides functional information and pin-outs of most of the semiconductor
devices within the HHP.
8. Glossary: terms used in this GSM and this manual.
LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved.
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Only for training and service purposes