IBM ThinkPad 380 Owner's manual

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This Manual Supports:
ThinkPad 380 (2635)
ThinkPad 385 (2635)
ThinkPad 560
ThinkPad 560E (2640) (2640)
ThinkPad 760C/CD (9546)
ThinkPad 760E/ED (9546)
ThinkPad 760L/LD (9546)
ThinkPad 760EL/ELD (9547)
ThinkPad 760XL (9546)
ThinkPad 760XD
ThinkPad 765D
ThinkPad 765L
ThinkPad 770
SelectaDock III
(9547)
(9546)
(9547)
(9548, 9549)
(3547)
S05L-1270-01
IBM Mobile Systems
Hardware Maintenance Manual
Volume 4: ThinkPad Computers
September 1997
We Want Your Comments!
(Please see page 697)

S05L-1270-01
IBM Mobile Systems
Hardware Maintenance Manual
Volume 4: ThinkPad Computers
September 1997
We Want Your Comments!
(Please see page 697)
IBM

Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 702.
Second Edition (September 1997)
The following paragraph does not apply to the United
Kingdom or any country where such provisions are
inconsistent with local law: INTERNATIONAL
BUSINESS MACHINES CORPORATION PROVIDES THIS
PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT
NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. Some states do not allow disclaimer of
express or implied warranties in certain transactions,
therefore, this statement may not apply to you.
This publication could include technical inaccuracies or
typographical errors. Changes are periodically made to
the information herein; these changes will be incorporated
in new editions of the publication. IBM may make
improvements and/or changes in the product(s) and/or the
program(s) described in this publication at any time.
This publication was developed for products and services
offered in the United States of America. IBM may not offer
the products, services, or features discussed in this
document in other countries, and the information is subject
to change without notice. Consult your local IBM
representative for information on the products, services,
and features available in your area.
Requests for technical information about IBM products
should be made to your IBM reseller or IBM marketing
representative.
 Copyright International Business Machines
Corporation 1997. All rights reserved.
Note to U.S. Government users–Documentation related to
Restricted rights–Use, duplication, or disclosure is subject
to restrictions set forth in GSA ADP Schedule Contract
with IBM Corp.
ii IBM Mobile Systems HMM

About This Manual
This manual contains service and reference information for
IBM ThinkPad 380, 385, 560, 760, 765, 770, and
SelectaDock III products. Use this manual along with the
advanced diagnostic tests to troubleshoot problems
effectively.
The manual is divided into sections as follows:
The Introduction section provides general information,
guidelines, and safety information required to service
computers.
The product-specific sections include service,
reference, and product-specific parts information.
The Common Devices Checkout section provides
procedures for testing the devices that are commonly
attached to ThinkPad computers.
The Miscellaneous Information section contains
information about acronyms, abbreviations, terms,
and a telephone number listing.
Important
This manual is intended for trained servicers who are
familiar with ThinkPad products. Use this manual
along with the advanced diagnostic tests to
troubleshoot problems effectively.
Before servicing an IBM mobile product, be sure to
review the safety information under “Safety Notices
(Multi-lingual Translations)” on page 8 and “Safety
Information” on page 15.
iii

Related Publications
The following mobile product publications are available
through IBM or your IBM Authorized Dealer.
Publication Part, Form Number
Mobile Systems HMM
Volume 1: Laptop,
Notebook, Portable, and
ThinkPad Computers
(Models L40, CL57, N45,
N51, P70, P75, ThinkPad
300, 350, 500, 510, 710T,
Expansion Unit, Dock I,
Dock II)
30H2356, S82G-1501-01
Mobile Systems HMM
Volume 2: ThinkPad
Computers
(Model 340, 355, 360, 370,
700, 701, 720, 750, 755)
30H2357, S82G-1502-03
Mobile Systems HMM
Volume 3: ThinkPad
Computers
(Model 365, 380, 385, 560,
760, SelecataDock
84H8099, S82G-1503-05
ThinkPad 700 (9552) HMS 42G2016, S42G-2016
ThinkPad 700 (9552) HMR 42G2015, S42G-2015
ThinkPad 700C (9552) HMS 42G2022, S42G-2022
ThinkPad 700C (9552) HMR 42G2021, S42G-2021
ThinkPad 720/720C (9552)
HMS 61G1193, S61G-1193
ThinkPad 720/720C (9552)
HMR 61G1187, S61G-1187
ThinkPad 730T (2524) HMM 82G5497, S82G-5497
ThinkPad Exp. Crtg. (3550)
HMS 42G2338, S42G-2338
ThinkPad Exp. Crtg. (3550)
HMR 42G2339, S42G-2339
PS/2 FaxConcentrator HMS 15F2262, S15F-2262
PS/2 FaxConcentrator HMR 84F8541, S84F-8541
PS/2 Comm. Cartridge I
HMS 10G5993, S10G-5993
PS/2 Comm. Cartridge I
HMR 10G5992, S10G-5992
IBM High Speed Internal,
PCMCIA Data/Fax Modems 61G1556, S61G-1556
iv IBM Mobile Systems HMM

Related Diskettes
The following diskettes are available through IBM or your
IBM Authorized Dealer.
Diskette Part, Form Number
ThinkPad 300 (2615)
Advanced Diagnostics
Diskette
33G9361, S33G-9361
ThinkPad 350, 350C, 425,
425C (2618) Advanced
Diagnostics Diskette
A211000, GA21-1000
ThinkPad 365 (2625)
Advanced Diagnostics
Diskette
76H7578, S30H-2498
ThinkPad 380, 385 (2635)
Maintenance Diskette 06J0333, S06J-0333
ThinkPad 500 (2603)
Advanced Diagnostics
Diskette
71G3702, S71G-3702
ThinkPad 510 (2604)
Advanced Diagnostics
Diskette
83G8095, S83G-8095
ThinkPad 700 (9552)
Reference Diskette 42G2017, S42G-2017
ThinkPad 700C (9552)
Reference Diskette 42G2023, S42G-2023
ThinkPad 720/720C (9552)
Reference Diskette 61G1194, S61G-1194
ThinkPad Hardware
Maintenance Diskette
(for all Models 355, 360,
560, 750, 755, 760)
78H5384, S78H-5384
ThinkPad Dock I (3545) 71G4140, S71G-4140
Docking Station (3550) 42G2428, S42G-2428
Data/Fax Modem 61G1556, S61G-1556
FaxConcentrator/A 84F8540, S84F-8540
v

vi IBM Mobile Systems HMM

Contents
Introduction . . . . . . . . . . . . . . . . . . . 1
Mobile Computer Descriptions ........... 2
Drive and Diskette Compatibility Matrix ....... 5
Important Service Information ........... 6
Safety Notices (Multi-lingual Translations) ..... 8
Safety Information . . . . . . . . . . . . . . . . 15
Laser Compliance Statement ........... 20
ThinkPad 380, 385 (2635) ............ 23
Read This First .................. 25
Checkout Guide . . . . . . . . . . . . . . . . . 29
Symptom-to-FRU Index . . . . . . . . . . . . . . 40
Related Service Procedures ............ 52
Product Overview (380, 385) . . . . . . . . . . . 57
FRU Removals and Replacements ......... 58
Locations . . . . . . . . . . . . . . . . . . . . 101
Parts Listing 380, 385 (2635) .......... 104
Common/Option Parts List ............ 115
ThinkPad 560, 560E (2640) .......... 121
Read This First ................. 123
Checkout Guide . . . . . . . . . . . . . . . . 127
Symptom-to-FRU Index . . . . . . . . . . . . . 138
Related Service Procedures ........... 150
Product Overview (560, 560E) . . . . . . . . . 154
FRU Removals and Replacements ........ 156
Locations . . . . . . . . . . . . . . . . . . . . 183
Parts Listing 560, 560E (2640) ......... 186
Common and Option Parts List ......... 193
ThinkPad 760 (9546, 9547) . . . . . . . . . . 199
Read This First ................. 202
Checkout Guide . . . . . . . . . . . . . . . . 205
Symptom-to-FRU Index . . . . . . . . . . . . . 223
Related Service Procedures ........... 236
Product Overview (760) . . . . . . . . . . . . . 241
FRU Removals and Replacements ........ 246
LCD Removal and Replacement ......... 290
LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N
29H9029) . . . . . . . . . . . . . . . . . . . 291
LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N
73H6599) . . . . . . . . . . . . . . . . . . . 296
LCD Unit, 10.4 SVGA (P/N 29H9227) ...... 302
LCD Unit, 10.4 VGA (P/N 46H5355) ....... 307
LCD Unit, 11.3 DSTN (P/N 39H6232) ...... 312
LCD Unit, 12.1 XGA .............. 317
LCD Unit, 12.1 SVGA (P/N 82H8496) ...... 323
LCD Unit, 12.1 SVGA (P/N 11J8867, ASM P/N
11J8855) . . . . . . . . . . . . . . . . . . . 329
LCD Unit, 12.1 SVGA (P/N 46H5725, ASM P/N
46H5723) . . . . . . . . . . . . . . . . . . . 335
 Copyright IBM Corp. 1997 vii