About This Manual - Lenovo ThinkPad Helix 20CG Hardware Maintenance Manual

About this manual

This manual contains service and reference information for the following ThinkPad
Machine
ThinkPad Helix
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
Machine type (MT)
20CG and 20CH
®
products.
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