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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
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