IBM 365xX Owner's manual

This Manual Supports:
ThinkPad 365X (2625)
ThinkPad 365XD (2625)
ThinkPad 560 (2640)
S84H-8101-00
IBM Mobile Systems
Hardware Maintenance Manual
ThinkPad 365X, 365XD, 560
February 1997
We Want Your Comments!
(Please see page 205)

S84H-8101-00
IBM Mobile Systems
Hardware Maintenance Manual
ThinkPad 365X, 365XD, 560
February 1997
We Want Your Comments!
(Please see page 205)
IBM

Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 210.
First Edition (February 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 produced 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 365X, 365XD, and 560 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 ThinkPad 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 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
(Models 340, 355, 360, 370,
700, 701, 720, 750, 755)
30H2357, S82G-1502-03
Mobile Systems HMM
Volume 3: ThinkPad
Computers
(Models 365, 560, 760,
SelectaDock)
78H6675, S82G-1503-04
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 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
Portable 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
Screw Size Chart ................. 22
ThinkPad 365X, 365XD (2625) .......... 25
Read This First .................. 27
Checkout Guide . . . . . . . . . . . . . . . . . 30
Symptom-to-FRU Index . . . . . . . . . . . . . . 40
Related Service Procedures ............ 51
Product Overview (365X, 365XD) . . . . . . . . . 60
FRU Removals and Replacements ......... 61
Locations . . . . . . . . . . . . . . . . . . . . . 96
Parts Listing 365X, 365XD (2625) ........ 102
ThinkPad 560 (2640) . . . . . . . . . . . . . 115
Read This First ................. 117
Checkout Guide . . . . . . . . . . . . . . . . 121
Symptom-to-FRU Index . . . . . . . . . . . . . 132
Related Service Procedures ........... 144
Product Overview (560) . . . . . . . . . . . . . 149
FRU Removals and Replacements ........ 150
Locations . . . . . . . . . . . . . . . . . . . . 174
Parts Listing 560 (2640) ............. 178
Common Devices Checkout .......... 189
External Diskette Drive Test ........... 190
External Display Self-Test ............ 190
External Keyboard/Auxiliary Input Device Checkout 191
Fax/Modem Checkout . . . . . . . . . . . . . . 192
Printer Checkout . . . . . . . . . . . . . . . . 194
Port Replicator Checkout ............ 195
TrackPoint Checkout . . . . . . . . . . . . . . 196
TV Tuner . . . . . . . . . . . . . . . . . . . . 197
Miscellaneous Information . . . . . . . . . . . 203
Acronyms, Abbreviations and Terms ....... 203
Send Us Your Comments! ............ 205
Do You Need Technical References? ...... 206
Problem Determination Tips ........... 207
Notices . . . . . . . . . . . . . . . . . . . . . 210
Copyright IBM Corp. 1997 vii

viii IBM Mobile Systems HMM