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S05L-1270-01
IBM Mobile Systems
Hardware Maintenance Manual
Volume 4: ThinkPad Computers
September 1997
We Want Your Comments!
(Please see page 697)
This Manual Supports:
ThinkPad 380 (2635)
ThinkPad 385 (2635)
ThinkPad 560 (2640)
ThinkPad 560E (2640)
ThinkPad 760C/CD (9546)
ThinkPad 760E/ED (9546)
ThinkPad 760L/LD (9546)
ThinkPad 760EL/ELD (9547)
ThinkPad 760XL (9546)
ThinkPad 760XD (9547)
ThinkPad 765D (9546)
ThinkPad 765L (9547)
ThinkPad 770 (9548, 9549)
SelectaDock III (3547)
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S05L-1270-01 IBM Mobile Systems Hardware Maintenance Manual Volume 4: ThinkPad Computers September 1997 We Want Your Comments! (Please see page 697) IBM
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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 MER
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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-speci
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Related Publications The following mobile product publications are available through IBM or your IBM Authorized Dealer. Publication Part, Form Number Mobile Systems HMM 30H2356, S82G-1501-01 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) Mobile Systems HMM 30H2357, S82G-1502-03 Volume 2: ThinkPad Computers (Model 340, 355, 360, 370, 700, 701, 720, 750, 755) Mobile Syste
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Related Diskettes The following diskettes are available through IBM or your IBM Authorized Dealer. Diskette Part, Form Number ThinkPad 300 (2615) 33G9361, S33G-9361 Advanced Diagnostics Diskette ThinkPad 350, 350C, 425, A211000, GA21-1000 425C (2618) Advanced Diagnostics Diskette ThinkPad 365 (2625) 76H7578, S30H-2498 Advanced Diagnostics Diskette ThinkPad 380, 385 (2635) 06J0333, S06J-0333 Maintenance Diskette ThinkPad 500 (2603) 71G3702, S71G-3702 Advanced Diagnostics Diskette ThinkPad
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vi IBM Mobile Systems HMM
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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-FR
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Locations . . . . . . . . . . . . . . . . . . . . 341 Parts Listing 760 (9546, 9547) ......... 346 LCD Parts List ................. 382 Common or Option Parts List .......... 402 ThinkPad 765D (9546), 765L (9547) ....... 409 Read This First ................. 411 Checkout Guide . . . . . . . . . . . . . . . . 415 Symptom-to-FRU Index . . . . . . . . . . . . . 432 Related Service Procedures ........... 448 Product Overview (765D, 765L) . . . . . . . . . 453 FRU Removals and Replacements ...
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Do You Need Technical References? ...... 698 Problem Determination Tips ........... 699 Phone Numbers, U.S. and Canada ........ 700 Notices . . . . . . . . . . . . . . . . . . . . . 702 Contents ix
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x IBM Mobile Systems HMM
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Introduction Mobile Computer Descriptions ........... 2 Drive and Diskette Compatibility Matrix ....... 5 Important Service Information ........... 6 How to Use Error Messages .......... 7 How to Read POST Error Messages ...... 7 Safety Notices (Multi-lingual Translations) ..... 8 Safety Information . . . . . . . . . . . . . . . . 15 General Safety . . . . . . . . . . . . . . . . 15 Electrical Safety . . . . . . . . . . . . . . . . 16 Safety Inspection Guide ............ 17 Handling Ele
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Mobile Computer Descriptions Models N51, CL57, and P70/75 and Thinkpads 700x and 720x are Micro Channel systems. All others are AT/ISA bus systems. Model Type Processor Memory Hrd Dsk Model L40SX 8543-044 386SX-20 2M/18M 60M Model N45 SL 2614-065 386SL-25 2M/8M 80M 2614-067 386SL-25 2M/8M 120M Model N51 SLC 8551-025 386SLC-16 2M/10M 80M Model N51 SX 8551-033 386SX-16 2M/10M 40M Model CL57 SX 8554-045 386SX-20 2M/16M 80M Model P70 386 8573-031 80386-16 2M/8M 30M 8573-061 80386-20 2M/
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Model Type Processor Memory Hrd Dsk ThinkPad 380 2635 Pentium-150 16M/48M 1.08G 2635 Pentium-150 16M/48M 1.35G 2635 Pentium-150 16M/48M 2.10G 2635 Pentium MMX-150 16M/48M 2.10G 2635 Pentium MMX-166 16M/48M 2.10G ThinkPad 385 2635 Pentium-150 16M/48M 1.08G 2635 Pentium-150 16M/48M 1.35G 2635 Pentium-150 16M/48M 2.10G 2635 Pentium MMX-166 16M/48M 2.10G ThinkPad 500 2603-081 486SLC2-50/25 4M/12M 80M 2603-171 486SLC2-50/25 4M/12M 170M ThinkPad 560 2630 Pentium-100 8M/40M 540M 2630 Pentium-10
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Model Type Processor Memory Hrd Dsk ThinkPad 755Cs 9545 486DX4-50/25 8M/32M 170M 9545 486DX4-50/25 8M/32M 340M 9545 486DX4-50/25 8M/32M 540M 9545 486DX4-75/25 8M/32M 170M 9545 486DX4-75/25 8M/32M 340M 9545 486DX4-75/25 8M/32M 540M ThinkPad 755Cse 9545 486DX4-100/33 8M/32M 340M 9545 486DX4-100/33 8M/32M 540M 9545 486DX4-100/33 8M/32M 810M ThinkPad 755CV 9545 486DX4-100/33 8M/32M 540M 9545 486DX4-100/33 8M/32M 810M ThinkPad 755CV 9545 486DX4-100/33 8M/32M 540M 9545 486DX4-100/33 8M/32M 810M
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Drive and Diskette Compatibility Matrix The following table provides identification information for 3.5-inch drives. Diskette Identifying Drive Mark 3.5-Inch - 1.44MB 1.44 on the eject button 3.5-Inch - 2.88MB 2.88 on the eject button The following table provides compatibility information for 3.5-inch diskettes and 3.5-inch diskette drives. Diskette 1.44MB 2.88MB Capacity Drive Drive 1.0MB Read/Write Read/Write 2.0MB Read/Write Read/Write 4.0MB Not Compatible Read/Write The followi
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Important Service Information Important Diskette fixes are customer installable. The diskette fixes are located on the PC Company Bulletin Board Service (BBS). The direct phone line for modem connection is 919-557-0001 or tieline 255-0001. Advise customers to contact the PC Company HelpCenter at 800-772-2227 if they need assistance in obtaining or installing any diskette fixes. Customers in Canada should call IBM HelpPC at 800-565-3344 for assistance or down-load information. The Canadi
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The advanced diagnostic tests are intended to test only IBM products. Non-IBM products or modified options can give false errors and invalid responses. Hard Disk Drive Replacement Strategy: Always try to run a low-level format before replacing a hard disk drive. Attention The drive startup sequence in the computer you are servicing might have been changed. Be extremely careful during write operations such as copying, saving, or formatting. Data or programs can be overwritten if you sele
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Safety Notices (Multi-lingual Translations) In this manual, safety notices appear in English with a page number reference to the appropriate multi-lingual, translated safety notice found in this section. The following safety notices are provided in English, French, German, Italian, and Spanish languages. Safety Notice 1 Before the computer is powered-on after FRU replacement, make sure all screws, springs, or other small parts are in place and are not left loose inside the computer. Verif
