LC1503R/LC1503R‐CUser’sGuide
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AppendixC‐WarningSignals
IfyouseewarningmessagesonyourLCDscreen,thismeansthattheLCDdisplaycannot
receiveacleansignalfromthecomputergraphicscard.
Theremaybethreesourcesforthisproblem.Pleasecheckthecableconnectionsorcontact
yourlocaldealerorourservicecenterformoreinformation.
NoSignal
ThismessagemeansthattheLCDdisplayhasbeenpoweredonbutit cannotreceive
anysignalfromthecomputergraphiccard.Checkallthepowerswitches,powercables,
andVGAsignalcable.
GoingtoSleep
ThismessagemeansthattheLCDdisplayisenteringthepowersavingmode.In
addition,theLCDdisplaywillentersleepmodewhenexperiencingasuddensignal
disconnectionproblem.Themonitorcanbere‐activatedbypressingthekeyboard,
triggeringthemouseortouchingthescreen.
OutofRange
Thismessagemeansthatthesignalofthecomputergraphiccardisnotcompatible
withtheLCDdisplay.Whenthesignalisnotincludedinthe“VideoModes”listwehave
listedintheAppendicesofthismanual,theLCDdisplaywilldisplaythismessage.