Lenovo B8080h Service Manual

YOGA TABLET 10 HD+ 
Lenovo B8080 
Hardware 
Maintenance 
Manual  

  
 
   
 
          
 
   
 
Note: 
Before using this information and the product it supports, be sure to read the general information 
under “Notices” on page 80. 
First Edition (February 2014)
 
© Copyright Lenovo 2014. All rights reserved.
 
LENOVO products, data, computer software, and serv ices have been developed exclusively at private 
expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with 
limited and restricted rights to  use, reproduction and...

  
    
 
 
Contents  

 
 
 
 
     
   
   
     
About this manual 
This manual contains service and re ference information for the following 
Lenovo product of the specified versions: 
• Lenovo B8080  (3G version and WiFi version) 
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 product-specific section includes se rvice, reference, and...

  
Safety information 
Safety information 
This chapter presents the following safety information that you need to get 
familiar with before you service a Lenovo computer: 
•“General safety” on page 2
 
•  “Electrical safety” on page 3
 
•  “Safety inspection guide” on page 5
 
•  “Handling devices that are sensitive  to electrostatic discharge” on page 6
 
•  “Grounding requirements” on page 6
 
•  “Safety notices: multilingual translations” on page 7
 
•  “Laser compliance statement” on page 14
 
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Lenovo B8080 Hardware Maintenance Manual 
General safety 
Follow these rules below to  ensure general safety: 
•  Observe a good housekeeping in the ar ea where the machines are put during 
and after the maintenance. 
•  When lifting any heavy object: 
1.	  Make sure that you can stan d safely without slipping. 
2.	  Distribute the weight of the object equally between your feet. 
3.	  Use a slow lifting force. Never move  suddenly or twist...

 
   
 
 
   
   
      
 
   
   
 
 
 
   
 
   
      
 
Safety information 
Electrical safety 
Observe the following rules when  working on electrical equipments. 
Important: 
Use only approved tools and test equipments. Some hand tools have 
handles covered with a soft material that does not insulate you when 
working with live electrical currents. 
Many customers have rubber floor mats near their machines that contain 
small conductive fibers to decrease el ectrostatic discharges. Do not use such...

 
 
     
 
 
 
Lenovo B8080 Hardware Maintenance Manual 
•  Always look carefully for possible hazards in your work area. Examples of 
these hazards are moist floors, nongro unded power extension cables, power 
surges, and missing  safety grounds. 
•  Do not touch live electrical circuits with the reflective surface of a plastic 
dental mirror. The surface is conducti ve; such touching can cause personal 
injury and machine damage. 
•  Do not service the following parts with  the power on when they are...

 
 
 
 
 
   
   
 
   
       
 
   
   
   
Safety information 
Safety inspection guide 
The purpose of this inspection guide is to assist you in identifying potential 
unsafe conditions. As each machine was  designed and built, required safety 
items were installed to protect users an d service personnel from injury. This 
guide addresses only those items. You sh ould use good judgment to identify 
potential safety hazards according to the  attachment of non-Lenovo features or 
options not covered by...

  
 
     
 
    
 
 
 
   
 
     
Lenovo B8080 Hardware Maintenance Manual 
Handling devices that are sensitive to electrostatic discharge 
Any computer part containing transistors or integrated circuits (ICs) should be 
considered sensitive to electrostatic discharge (ESD). ESD damage can occur 
when there is a difference in charge be tween objects. Protect against ESD damage 
by equalizing the charge so  that the machine, the part, the work mat, and the 
person handling the part are all at the same...