NEC PA723U - If There Is No Picture, Or The Picture Is Not Displayed Correctly

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8. Appendix
If there is no picture, or the picture is not displayed correctly.
• PoweronprocessfortheprojectorandthePC.
 BesuretoconnecttheprojectorandnotebookPCwhiletheprojectorisinstandbymodeandbeforeturningon
thepowertothenotebookPC.
 InmostcasestheoutputsignalfromthenotebookPCisnotturnedonunlessconnectedtotheprojectorbefore
beingpoweredup.
NOTE:Youcancheckthehorizontalfrequencyofthecurrentsignalintheprojector’smenuunderInformation.Ifitreads“0kHz”,
this means there is no signal being output from the computer. (→ page 137 or go to next step)
• Enablingthecomputer’sexternaldisplay.
 DisplayinganimageonthenotebookPC’sscreendoesnotnecessarilymeanitoutputsasignaltotheprojector.
WhenusingaPCcompatiblelaptop,acombinationoffunctionkeyswillenable/disabletheexternaldisplay.Usu-
ally,thecombinationofthe“Fn”keyalongwithoneofthe12functionkeysgetstheexternaldisplaytocomeon
oroff.Forexample,NEClaptopsuseFn+F3,whileDelllaptopsuseFn+F8keycombinationstotogglethrough
externaldisplayselections.
• Non-standardsignaloutputfromthecomputer
 IftheoutputsignalfromanotebookPCisnotanindustrystandard,theprojectedimagemaynotbedisplayed
correctly.Shouldthishappen,deactivatethenotebookPC’sLCDscreenwhentheprojectordisplayisinuse.Each
notebookPChasadifferentwayofdeactivate/reactivatethelocalLCDscreensasdescribedinthepreviousstep.
Refertoyourcomputer’sdocumentationfordetailedinformation.
• ImagedisplayedisincorrectwhenusingaMac
 WhenusingaMacwiththeprojector,settheDIPswitchoftheMacadapter(notsuppliedwiththeprojector)ac-
cordingtoyourresolution.Aftersetting,restartyourMacforthechangestotakeaffect.
 ForsettingdisplaymodesotherthanthosesupportedbyyourMacandtheprojector,changingtheDIPswitchon
aMacadaptermaybounceanimageslightlyormaydisplaynothing.Shouldthishappen,settheDIPswitchto
the13"xedmodeandthenrestartyourMac.Afterthat,restoretheDIPswitchestoadisplayablemodeandthen
restarttheMacagain.
NOTE:AVideoAdaptercablemanufacturedbyAppleComputerisneededforaMacBookwhichdoesnothaveaminiD-Sub
15-pin connector.
• MirroringonaMacBook
* WhenusingtheprojectorwithaMacBook,outputmaynotbesetto1024×768unless“mirroring”isoffonyour
MacBook.Refertoowner’smanualsuppliedwithyourMaccomputerformirroring.
• FoldersoriconsarehiddenontheMacscreen
 Foldersoriconsmaynotbeseenonthescreen.Shouldthishappen,select[View]→[Arrange]fromtheApple
menuandarrangeicons.