NEC P554U - Troubleshooting Check List

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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81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previ-
ous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Inc.isneededforaMacBookwhichdoesnothaveaminiD-Sub15-pinterminal.
• 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.