Satellite A80 Maintenance Manual    iii 
  The procedures described in this manual are intended to help service technicians isolate faulty 
Field Replaceable Units (FRUs) and replace them in the field. 
SAFETY PRECAUTIONS 
Four types of messages are used in this manual to bring important information to your attention.  
Each of these messages will be italicized and identified as shown below. 
DANGER:..... “Danger” indicates the existence of a hazard that could result in death or serious 
bodily injury if the safety instruction is not observed. 
 
  WARNING: ... “Warning” indicates the existence of a hazard that could result in bodily injury if 
the safety instruction is not observed. 
 
  CAUTION:“Caution” indicates the existence of a hazard that could result in property damage if 
the safety instruction is not observed. 
 
  NOTE: .........“Note” contains general information that relates to your safe maintenance service. 
Improper repair of the computer may result in safety hazards. Toshiba requires service 
technicians and authorized dealers or service providers to ensure the following safety 
precautions are adhered to strictly. 
 
  Be sure to fasten screws securely with the right screwdriver. If a screw is not fully fastened, it 
could come loose, creating a danger of a short circuit, which could cause overheating, smoke or 
fire. 
 
  If you replace the battery pack or RTC battery, be sure to use only the same model battery or 
an equivalent battery recommended by Toshiba. Installation of the wrong battery can cause the 
battery to explode.