About this manual
This manual provides service and reference information for the following Lenovo® products.
Machine
Lenovo E49
ZhaoYang E49
Machine type (MT)
3464
20161, 20162, 20178
Use this manual to troubleshoot problems.
The manual is divided into the following sections:
•The common sections provide general information, guidelines, and safety information required for servicing computers.
•The
Important:
•This manual is intended only for trained service technicians who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively.
•Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety information” on page 1 and Chapter 2 “Important service information” on page 27.
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