Lenovo 42862AU Hardware Maintenance Manual - Page 5
About this manual, ThinkPad X220 and X220i
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About this manual This manual contains service and reference information for the following ThinkPad® products. ThinkPad X220 and X220i Machine Type 4286, 4287, 4289, 4290, 4291, 4292, and 4293 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 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 Chapter 1 "Safety information" on page 1 and Chapter 2 "Important service information" on page 23. © Copyright Lenovo 2011 iii
About this manual
This manual contains service and reference information for the following ThinkPad
®
products.
ThinkPad X220 and X220i
Machine Type 4286, 4287, 4289, 4290, 4291, 4292, and 4293
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 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 Chapter 1 “Safety information” on
page 1 and Chapter 2 “Important service information” on page 23.
© Copyright Lenovo 2011
iii