Contents

ThinkPad

240

 

Hardware

Maintenance

Manual

 

 

. .

1

 

 

 

 

 

Read

This

First

1

 

 

 

What

 

to

Do

First

2

 

 

 

 

How

to

Disable

the Password

3

 

 

 

 

Product Overview

. . . . . . . 4

Fn

Key

Combinations

5

 

 

 

 

Status Indicators

. . . . . . . 6

Checkout Guide

 

. . . . . . . . . .

. . . . . . . 7

Audio Checkout

 

. . . . . . . . . .

.

.

.

. . .

8

Fan

ASM

Checkout

. . . . . . . . . . . . . .

8

 

 

 

 

Keyboard and Auxiliary Input Device Checkout

.

9

 

 

 

Memory Checkout

 

. . . . . . . . . .

. . . . . 9

 

Modem

 

Board

Checkout

10

 

 

 

 

Power

 

System

Checkout

10

 

 

 

 

TrackPoint Checkout

. . . . . 12

 

I/O

Ports

Checkout

13

 

 

 

 

Power

 

Management

Features

13

 

 

 

 

Symptom-to-FRU Index

 

. . . . . . . . .

. . . . . 16

 

Numeric

Error

Codes

16

 

 

 

 

Error Messages

 

. . . . . . . . . .

. . . . . . 18

No

Beep

Symptoms

19

 

 

 

 

LCD-Related Symptoms

. . . . . . . . . .

.

.

19

 

Keyboard-Related Symptoms

.

.

.

19

 

Indicator-Related Symptoms

. . . . . . . .

.

.

19

 

Power-Related Symptoms

. . . . . . . .

.

.

.

20

 

PC Card (PCMCIA)-Related

Symptoms

20

 

 

 

 

 

Speaker-Related Symptoms

. . . . . . .

. . . 20

 

Power

 

Management-Related

Symptoms

20

 

 

 

 

 

Peripheral-Device-Related Symptom

. . . . .

.

21

 

 

 

Intermittent Problems

. . . . . . . .

. . . . . 21

 

Undetermined Problems

. . . . . . . .

. . . . 22

 

CE Utility

Program

Diskette

23

 

 

 

 

Writing

the

 

VPD

Data

23

 

 

 

 

Flash UUID

 

. . . . . . . . . . . .

.

.

. . .

. 23

Running

the

Diagnostics

23

 

 

 

 

FRU

Removals

and

Replacements

24

 

 

 

 

FRU

Service

Procedures

24

 

 

 

 

1010

Battery

ASM

26

 

 

 

 

1020

Hard

Disk

Drive

27

 

 

 

 

1030 Keyboard

 

. . . . . . . . . .

. . . . . . 28

1040

Modem

Card

30

 

 

 

 

1050 DIMM

Card

31

 

 

 

 

1060

LCD

Unit

ASM

32

 

 

 

 

1070

Upper

Cover ASM

34

 

 

 

 

1080

Speaker

ASM

. . . . . . . . . . . . . .

36

 

 

 

 

1085

Select

Button

ASM

37

 

 

 

 

1090

Cable ASM

and

Cable

ASM

LED-R . . . .

38

 

 

 

 

 

1100

Fan

ASM

 

. . . . . . . . . . . . . . . .

39

 

 

 

 

1110

 

Modem

Cable

ASM

41

 

 

 

 

1120

 

Water

Channel

ASM . . . . . . . . . . . 42

 

 

 

 

1130

 

System

Board

43

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contents

iii

 

 

 

 

 

 

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IBM S09N-8590-00 manual Contents