71Chapter 5 Last, but Not Least
Disconnectthepoweradapteranddisconnectanyothercablesifanyofthefollowing
conditionsexists:
ÂYouwanttoaddmemoryorupgradetheharddiskdrive.
ÂYouwanttocleanthecase(useonlytherecommendedproceduredescribedon
page74).
ÂThepowercordorplugbecomesfrayedorotherwisedamaged.
ÂYourMacBookProorpoweradapterisexposedtorain,excessivemoisture,orliquid
spilledintothecase.
ÂYourMacBookProorpoweradapterhasbeendropped,thecasehasbeendamaged,
oryoususpectthatserviceorrepairisrequired.
TheMagSafepowerportcontainsamagnetthatcanerasedataonacreditcard,iPod,
orotherdevice.Topreserveyourdata,don’tplacetheseorothermagneticallysensitive
materialordeviceswithin1inch(25mm)ofthisport.
IfdebrisgetsintotheMagSafepowerport,removeitgentlywithadrycottonswab.
MagSafe power specications:
ÂFrequency:50to60Hz,singlephase
ÂLine Voltage:100to240V
ÂOutput Voltage:18.5VDC,4.6A