Table of Contents
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About this manual
®
This manual provides service and reference information for Lenovo
computers listed on the front cover.
Use this manual along with the advanced diagnostic tests to troubleshoot problems.
Important: This manual is intended only for trained service technicians who are familiar with Lenovo
computers. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.
Before servicing a Lenovo computer, be sure to read and understand Chapter 1 "Important safety
information" on page 1.
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Table of Contents
