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About this manual
This manual contains service and reference information for the following ThinkPad
ThinkPad E450
ThinkPad E455
ThinkPad E450c
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 19.
© Copyright Lenovo 2014, 2015
Machine type (MT) 20DC and 20DD
Machine type (MT) 20DE
Machine type (MT) 20EH
®
products.
iii
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