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About this manual
®
This manual contains service and reference information for the following ThinkPad
products.
ThinkPad L470
Machine Type (MT): 20J4, 20J5, 20JU, and 20JV
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 2017
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