About This Manual - Lenovo ThinkPad T400 6474 Hardware Maintenance Manual

About this manual

This manual contains service and reference information for the following
ThinkPad
ThinkPad T400
ThinkPad R400
Use this manual along with the advanced diagnostic tests to troubleshoot
problems.
© Copyright Lenovo 2008, 2009
®
products.
MT 2764, 2765, 2766, 2767, 2768, 2769, 2773, 6473, 6474, 6475, 7417, 7420,
7425, and 7434
MT 2782, 2783, 2784, 2786, 2787, 2788, 2789, 7438, 7439, 7440, 7443, 7445,
7446, and 7447
Important:
This manual is intended only for trained service technicians who are familiar
with ThinkPad products. Use this manual along with the advanced diagnostic
tests to troubleshoot problems effectively.
Before servicing a ThinkPad product, be sure to read all the information under
"Safety information" on page 1 and "Important service information" on page 39.
v