Lenovo G 560 Service Manual

Lenovo G560
Hardware 
Maintenance 
Manual 

Note:
Before  using  this  information  and  the  product  it  supports,  be  sure  to  read  the  general  information  under “Notices” on page 85
First Edition (Jan. 2010)
© Copyright Lenovo 2010. All rights reserved.
LENOVO  products,  data,  computer  software,  and  services  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...

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Contents
About this manual .......................................iv
Safety information ........................................1General safety  ................................................2Electrical safety  ..............................................3Safety inspection guide ..................................5Handling devices that are sensitive to electrostatic discharge ....................................6Grounding requirements .................................6Safety notices: multilingual...

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About this manual
This  manual  contains  service  and  reference  information  for  the  following Lenovo product:
Lenovo G560
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 service, reference, and product-specific • parts information.
Important:
This  manual  is  intended  only  for...

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Safety information
Safety information
This  chapter  presents  the  following  safety  information  that  you  need  to  get familiar with before you service a Lenovo G560 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 G560 Hardware Maintenance Manual
General safety
Follow these rules below to ensure general safety:
Observe  a  good  housekeeping  in  the  area  where  the  machines  are  put • during and after the maintenance.
When lifting any heavy object: • 
1. Make sure that you can stand 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 when you attempt to lift it.
4. Lift  it  by  standing  or  pushing  up...

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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 electrostatic discharges. Do not use such kind of mat 
to protect...

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Lenovo G560 Hardware Maintenance Manual
Always  look  carefully  for  possible  hazards  in  your  work  area.  Examples  of • these hazards are moist floors, nongrounded 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  conductive;  such  touching  can  cause  personal injury and machine damage.
Do not service the following parts with the power on when they...

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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  and  service  personnel  from  injury.  This guide  addresses  only  those  items.  You  should  use  good  judgment  to  identify potential safety hazards according to the attachment of non-Lenovo features or options not covered by this...

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Lenovo G560 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  between  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...