Apple twentieth anniversary mac 서비스 매뉴얼

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Safety instructions
For your own safety and that of your equipment, always take the following precautions.
Turn off the computer completely and disconnect the power plug (by pulling the plug, not the cord) if
any of the following conditions exists:
m the power cord or plug becomes frayed or otherwise damaged 
m you spill something into the case 
m your computer is exposed to rain or any other excess moisture 
m your computer has been dropped or the case has been otherwise damaged 
m you suspect that your computer needs service or repair 
m you want to clean the case (use only the recommended procedure described later in this chapter) 
Be sure that you always do the following: 
m Read all the installation instructions carefully before you plug your computer into a wall socket.
m Keep these instructions handy for reference by you and others.
m Follow all instructions and warnings dealing with your system.
m Keep your computer away from sources of liquids, such as washbasins, bathtubs, shower stalls, and
so on.
m Protect your computer from dampness or wet weather, such as rain, snow, and so on.
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Warning  
Electrical equipment may be hazardous if misused. Operation of this product, or similar
products, must always be supervised by an adult. Do not allow children access to the interior of any
electrical product and do not permit them to handle any cables.    
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Appendix A
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