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IBM ThinkPad 240X

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IBM ThinkPad 240X Hardware Maintenance Manual

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Description

IBM ThinkPad 240X Hardware Maintenance Manual
Fourth Edition (May 2000)

This manual contains service and reference information for IBM ThinkPad 570Z (2644) and ThinkPad Ultrabase products.

Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.

Contents
Introduction . 1
Important Service Information . 1
How to Use Error Messages 2
How to Read POST Error Messages 2
Drive and Diskette Compatibility Matrix . 3
Safety Notices (Multi-lingual Translations) . 4
Safety Information 11
General Safety 11
Electrical Safety 12
Safety Inspection Guide 13
Handling Electrostatic Discharge-Sensitive Devices 15
Grounding Requirements 15
Laser compliance statement 16
General Description . 19
Read This First 19
What to Do First 20
How to Disable the Password . 21
Product Overview . 22
Fn Key Combinations . 22
Status Indicators 23
Checkout Guide . 25
Audio Checkout 25
Fan ASM Checkout 26
Keyboard and Auxiliary Input Device Checkout . 26
Memory Checkout . 26
Modem Board Checkout 27
Power System Checkout 27
TrackPoint Checkout 29
I/O Ports Checkout 30
Power Management Features . 30
Symptom-to-FRU Index 33
Numeric Error Codes 33
Error Messages 35
No Beep Symptoms 35
LCD-Related Symptoms 36
Keyboard-Related Symptoms 36
Indicator-Related Symptoms 36
Power-Related Symptoms . 37
PC Card (PCMCIA)-Related Symptoms . 37
Speaker-Related Symptoms 37
Power Management-Related Symptoms . 37
Peripheral-Device-Related Symptom 38
Intermittent Problems . 38
Undetermined Problems 39
CE Utility Program Diskette 40
Writing the VPD Data . 40
Flash UUID 40
Running the Diagnostics 40
FRU Removals and Replacements . 41
FRU Service Procedures 41
1010 Battery ASM . 43
1020 Hard Disk Drive . 44
1030 Keyboard 45
1040 Modem Card . 46
1050 DIMM Card . 47
1060 LCD Unit ASM 48
1070 Upper Cover ASM 49
1080 Speaker ASM 51
1085 Select Button ASM 52
1090 Cable ASM and Cable ASM LED-R 53
1100 Fan ASM 54
1110 Modem Cable ASM 56
1120 Water Channel ASM . 57
1130 System Board 58
1135 Rear Bracket . 60
1140 PCMCIA Slots 61
1150 LCD Bezel ASM . 62
1160 LCD Inverter ASM 63
1170 LCD Panel ASM (LCD Type A and B) . 64
1180 LCD FPC ASM (LCD Type A) . 66
1185 LCD FPC ASM (LCD Type B) . 67
1190 Hinge ASM . 68
Computer Parts Listing 69
LCD Unit Parts Listing (LCD Type A) 74
LCD Unit Parts Listing (LCD Type B) 75
Service Tools . 75
Notices 77
Trademarks . 77




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