Lenovo ThinkPad X40 2371 Owner's manual

ThinkPad Computer
Hardware Maintenance Manual
September 2005
This manual supports:
ThinkPad X40 Series
(MT 2369, 2370, 2371, 2372, 2382, 2386)

Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 145.
First Edition (September 2005)
©Copyright Lenovo 2005.
Portions ©Copyright International Business Machines
Corporation 2005.
All rights reserved.
U.S. GOVERNMENT USERS –RESTRICTED RIGHTS:
Our products and/or services are provided with
RESTRICTED RIGHTS. Use, duplication or disclosure by
the Government is subject to the GSA ADP Schedule
contract with Lenovo Group Limited, if any, or the standard
terms of this commercial license, or if the agency is unable
to accept this Program under these terms, then we provide
this Program under the provisions set forth in Commercial
Computer Software–Restricted Rights at FAR 52.227-19,
when applicable, or under Rights in Data-General, FAR
52.227.14 (Alternate III).

Contents
About this manual ...........1
Introduction .............3
Important service information .........3
Strategy for replacing FRUs .........3
Strategy for replacing ahard disk drive .....4
How to use error messages ........4
Strategy for replacing FRUs for CTO, CMV, and GAV 4
Product definition ...........4
FRU identification for CTO, CMV, and GAV products 5
Important information about replacing RoHS compliant
FRUs ...............7
Diskette compatibility matrix .........8
Safety notices: multilingual translations ......8
Safety information............20
General safety ............20
Electrical safety ...........21
Safety inspection guide .........23
Handling devices that are sensitive to electrostatic
discharge ............24
Grounding requirements .........25
Laser compliance statement.........26
General descriptions ..........29
Read this first .............29
What to do first ...........29
Related service information .........31
Service Web site ...........31
Restoring the preloaded system ......31
Recovering the hard disk to original contents ...34
Passwords .............37
Power management ..........39
Checkout guide ............42
Testing the computer ..........42
Detecting system information with PC-Doctor...46
Power system checkout .........46
ThinkPad X40 series ..........51
Product overview ............53
Specifications ............53
Status indicators for X40 .........55
FRU tests .............57
Fn key combinations ..........59
Symptom-to-FRU index ..........61
Numeric error codes ..........61
Error messages ...........68
Beep symptoms ...........70
No-beep symptoms ..........70
LCD-related symptoms .........71
Intermittent problems ..........72
©Lenovo 2005. Portions ©IBM Corp. 2005. iii

Undetermined problems .........72
FRU replacement notices .........73
Screw notices ............73
Retaining serial numbers.........74
Removing and replacing aFRU........77
1010 Battery pack...........78
1020 Hard disk drive ..........79
1030 DIMM cover ...........80
1040 Mini PCI adapter, DIMM, MDC-2, and
BMDC-2.............81
1050 Keyboard ...........84
1060 Upper case ...........87
1070 Backup battery ..........90
1080 LCD module...........91
1090 Hard disk housing assembly ......94
1100 Top shielding ..........95
1110 Lower case ...........96
1120 Fansink ............ 100
2010 LCD bezel ........... 101
2020 LCD............. 104
2030 Inverter card .......... 105
2040 Antenna Land antenna R...... 107
2050 Hinge Land hinge R........ 111
2060 Bluetooth antenna cable .......113
Locations ..............114
Front view for X40 series ........114
Rear view for X40 series ........115
Bottom view for X40 series........116
Front View for X4 UltraBase Dock .....117
Rear View for X4 UltraBase Dock ......118
Parts list ..............119
Overall..............119
LCD FRUs ............ 134
Keyboard ............. 136
Recovery CDs ........... 138
Miscellaneous parts .......... 141
Common parts list .......... 142
Notices .............. 145
Trademarks ............. 147
iv MT 2369/2370/2371/2372/2382/2386

About this manual
This manual contains service and reference information for
ThinkPad
® X40 (MT 2369/2370/2371/2372/2382/2386)
product. Use this manual along with the advanced
diagnostic tests to troubleshoot problems.
The manual is divided into sections as follows:
vThe common sections provide general information,
guidelines, and safety information required in servicing
computers.
vThe product-specific section includes service, reference,
and product-specific parts information.
Important
This manual is intended for trained service
personnel who are familiar with ThinkPad products.
Use this manual along with the advanced diagnostic
tests to troubleshoot problems effectively.
Before servicing aThinkPad product, be sure to
review the safety information under “Safety notices:
multilingual translations” on page 8, “Safety
information” on page 20, and “Laser compliance
statement” on page 26.
©Lenovo 2005. Portions ©IBM Corp. 2005. 1