Apple MD770LL/A Personal Computer User Manual


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93Chapter 4 Problem, Meet Solution
 Makesurethesidepanelisclosed(followtheinstructionsstartingonpage52)and
thePCIportaccesscoversareinplace(see“AddingPCIExpressCards”onpage74).
AntennareceptionisreducedwhenyourMacProisnotclosedproperly.
 ChecktheWi-Fisignallevel.YoumayhaveuptofourbarsintheWi-Fistatusicon(Z)
inthemenubar.
 FormoreinformationaboutWi-Fi,chooseHelp>HelpCenterandsearchfor“Wi-Fi.”
Alsoseetheinstructionsthatcamewiththewirelessdeviceformoreinformation.
Problems with Your Display
NOTICE:  IfyouhaveaproblemwithyourAppledisplayandnothinginthismanual
solvesit,contactanAppleAuthorizedServiceProviderorAppleforassistance.Ifyou
attempttorepairthedisplayyourself,anydamageyoumaycausetothedisplaywill
notbecoveredbythelimitedwarrantyonyourdisplay.ContactanAppleAuthorized
ResellerorAppleAuthorizedServiceProviderforadditionalinformationaboutthisor
anyotherwarrantyquestion.
If no image appears on the screen
 Makesurethecomputeristurnedon,andifthedisplayhasapowerbutton,make
sureit’sturnedon.
 Makesurethecablesareconnectedproperlytoyourcomputerandthedisplay.
 Ifyourgraphicscardhasaninternalpowercable,makesureit’sconnectedtothe
cardandthelogicboard.
 Makesureyourcomputerisnotinsleep.Pressthepowerbuttonoranykeytoseeif
thecomputerwakes.
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