IBM ThinkPad 340 Series User Manual

Contents
Introduction . . . . . . . . . . . . . . . . . . . 1
Portable Computer Descriptions .......... 2
Drive and Diskette Compatibility Matrix ....... 4
Important Service Information ........... 5
Safety Notices (Multi-lingual Translations) ..... 7
Safety Information . . . . . . . . . . . . . . . . 14
Laser Compliance Statement ........... 19
Screw Size Chart ................. 20
ThinkPad 340x (IBM 2610) ............ 23
General Checkout . . . . . . . . . . . . . . . . . 25
Symptom-to-FRU Index . . . . . . . . . . . . . . 34
Related Service Procedures ............ 43
Product Overview . . . . . . . . . . . . . . . . . 48
FRU Removals and Replacements ......... 49
Locations . . . . . . . . . . . . . . . . . . . . . 59
Parts Listing . . . . . . . . . . . . . . . . . . . 62
ThinkPad 700, 700C, 720, 720C (9552) ...... 67
General Checkout . . . . . . . . . . . . . . . . . 68
Symptom-to-FRU Index . . . . . . . . . . . . . . 82
Related Service Procedures ............ 94
Product Overview . . . . . . . . . . . . . . . . 102
FRU Removals and Replacements ........ 104
Locations . . . . . . . . . . . . . . . . . . . . 110
Parts Listing (700) ............... 115
Parts Listing (720, 720C) ............ 118
ThinkPad 701C/701CS (2630) .......... 125
Checkout Guide . . . . . . . . . . . . . . . . 127
Symptom-to-FRU Index . . . . . . . . . . . . . 141
Related Service Procedures ........... 154
Product Overview . . . . . . . . . . . . . . . . 159
FRU Removals and Replacements ........ 161
Locations . . . . . . . . . . . . . . . . . . . . 181
Parts Listing . . . . . . . . . . . . . . . . . . 190
ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs . 195
Read This First ................. 197
General Checkout . . . . . . . . . . . . . . . . 200
Symptom-to-FRU Index . . . . . . . . . . . . . 216
Related Service Procedures ........... 228
Product Overview . . . . . . . . . . . . . . . . 232
FRU Removals and Replacements ........ 236
Removals Models 355x, 360x .......... 237
Removals Models 370C, 750x, 755C, 755Cs . . . 261
Locations . . . . . . . . . . . . . . . . . . . . 289
Parts Listing . . . . . . . . . . . . . . . . . . 296
ThinkPad 755CD, 755CDV (9545) ........ 315
General Checkout . . . . . . . . . . . . . . . . 317
 Copyright IBM Corp. 1995 vii

IBM ThinkPad 340 Series Specifications

General

Brand	IBM
Model	ThinkPad 340 Series
Category	Laptop
Language	English

Summary

Introduction

Portable Computer Descriptions

Provides descriptions of various portable computer models.

Important Service Information

Covers crucial information and strategies for servicing IBM products.

Safety Notices (Multi-lingual Translations)

Presents safety notices in multiple languages for user safety.

Safety Information

Outlines general safety rules and precautions for servicing IBM mobile computers.

Laser Compliance Statement

Details compliance information for laser products, specifically CD-ROM drives.

Screw Size Chart

Provides a chart to match screw sizes and shapes used in computer servicing.

ThinkPad 340x (IBM 2610)

General Checkout

Provides a procedure for diagnosing computer problems and identifying next steps.

Memory Checkout

Details steps for isolating memory-related problems in the computer.

Power Systems Checkout

Describes how to verify symptoms by testing various computer power sources.

Symptom-to-FRU Index

Lists symptoms, errors, and possible causes to help identify FRUs for servicing.

FRU Removals and Replacements

Contains information about FRU removals and replacements, including ESD precautions.

Locations

Illustrates the locations of various system components and connectors.

ThinkPad 700, 700C, 720, 720C (9552)

General Checkout

Provides a procedure for diagnosing computer problems and identifying next steps.

Memory Checkout

Details steps for isolating memory-related problems in the computer.

Power Systems Checkout

Describes how to verify symptoms by testing various computer power sources.

Power Management Features

Explains the power management modes for saving power and prolonging battery life.

Symptom-to-FRU Index

Lists symptoms, errors, and possible causes to help identify FRUs for servicing.

FRU Removals and Replacements

Contains information about FRU removals and replacements, including ESD precautions.

Locations

Illustrates the locations of various system components and connectors.

ThinkPad 701C/701CS (2630)

Checkout Guide

Provides a guide for diagnosing computer problems and determining the correct troubleshooting steps.

General Checkout

Details procedures for performing a general checkout of computer problems.

Memory Checkout

Describes how to isolate memory problems and check memory card installation.

Power Systems Checkout

Outlines procedures for verifying symptoms by testing various computer power sources.

Symptom-to-FRU Index

Lists symptoms, errors, and possible causes to help identify FRUs for servicing.

FRU Removals and Replacements

Contains information about FRU removals and replacements, including ESD precautions.

Locations

Illustrates the locations of various system components and connectors.

ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs

Read This First

Provides essential service information and precautions before beginning maintenance.

General Checkout

Outlines the procedure for performing a general checkout of computer problems.

Memory Checkout

Details steps for isolating memory-related problems and checking memory card installation.

Power Systems Checkout

Describes how to verify symptoms by testing various computer power sources.

Symptom-to-FRU Index

Lists symptoms, errors, and possible causes to help identify FRUs for servicing.

FRU Removals and Replacements

Contains information about FRU removals and replacements, including ESD precautions.

Locations

Illustrates the locations of various system components and connectors.

ThinkPad 755CD, 755CDV (9545)

General Checkout

Provides a procedure for diagnosing computer problems and identifying next steps.

Memory Checkout

Details steps for isolating memory-related problems and checking memory card installation.

Power Systems Checkout

Describes how to verify symptoms by testing various computer power sources.

Symptom-to-FRU Index

Lists symptoms, errors, and possible causes to help identify FRUs for servicing.

FRU Removals and Replacements

Contains information about FRU removals and replacements, including ESD precautions.

Locations

Illustrates the locations of various system components and connectors.

ThinkPad 755CE, 755CSE, 755CV, 755CX (9545)

General Checkout

Provides a procedure for diagnosing computer problems and identifying next steps.

Memory Checkout

Details steps for isolating memory-related problems and checking memory card installation.

Power Systems Checkout

Describes how to verify symptoms by testing various computer power sources.

Symptom-to-FRU Index

Lists symptoms, errors, and possible causes to help identify FRUs for servicing.

FRU Removals and Replacements

Contains information about FRU removals and replacements, including ESD precautions.

Locations

Illustrates the locations of various system components and connectors.

Common Devices Checkout

External Diskette Drive Test

Isolates problems related to diskette controllers, drives, or diskettes.

External Display Self-Test

Provides instructions for troubleshooting external display issues.

External Keyboard/Auxiliary Input Device Checkout

Covers testing and troubleshooting for auxiliary input devices like keyboards and mice.

Fax/Modem Checkout

Details procedures for diagnosing and resolving fax/modem problems.

Printer Checkout

Outlines steps for testing and troubleshooting printer connectivity and functionality.

Port Replicator Checkout

Guides on isolating problems related to the port replicator's functionality.

TrackPoint II Checkout

Provides steps to check and troubleshoot TrackPoint II functionality.

TV Tuner

Explains the setup and operation of the TV Tuner option.

Troubleshooting

Offers solutions for common problems encountered with the TV Tuner.

Miscellaneous Information

Acronyms, Abbreviations and Terms

Lists and defines common acronyms, abbreviations, and terms used in the manual.

Problem Determination Tips

Provides guidance on gathering information for effective problem determination.

Phone Numbers, U.S. and Canada

Lists important phone numbers for IBM support and authorized dealers.