NEC PX750U - If There Is no Picture, or the Picture Is Not Displayed Correctly

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9. 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 126 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Macintosh
 WhenusingaMacintoshwiththeprojector,settheDIPswitchoftheMacadapter(notsuppliedwiththeprojector)
accordingtoyourresolution.Aftersetting,restartyourMacintoshforthechangestotakeaffect.
 ForsettingdisplaymodesotherthanthosesupportedbyyourMacintosh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Macintosh.Afterthat,restoretheDIPswitchestoadisplayablemode
andthenrestarttheMacintoshagain.
NOTE:AVideoAdaptercablemanufacturedbyAppleComputerisneededforaPowerBookwhichdoesnothaveaminiD-Sub
15-pin connector.
• MirroringonaPowerBook
* WhenusingtheprojectorwithaMacintoshPowerBook,outputmaynotbesetto1024×768unless“mirroring”
isoffonyourPowerBook.Refertoowner’smanualsuppliedwithyourMacintoshcomputerformirroring.
• FoldersoriconsarehiddenontheMacintoshscreen
 Foldersoriconsmaynotbeseenonthescreen.Shouldthishappen,select[View]→[Arrange]fromtheApple
menuandarrangeicons.