About this manual

This manual contains service and reference information for IBM ThinkPad A20, A21, A22 (MT2628, 2629, 2633), and ThinkPad Dock (MT2631) products. 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 an IBM ThinkPad product, be sure to review the safety information under “Safety notices: multilingual translations” on page 3, “Safety information” on page 14, and “Laser compliance statement” on page 18.

© Copyright IBM Corp. 2001

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IBM A21P, A21M, A22P, A22M, A20M, MT 2631 About this manual
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