15TroubleshootingIf you have a problem setting up or using your monitor, you may be able to solve it yourself.Before calling your retailer or IBM you should try the suggested actions that are appropriate toyour problem.Problem Possible Cause Suggested Action ReferenceScreen is blank andpower indicator is off.No power to monitor. • Ensure the electricaloutlet and the monitorare both switched on.• Check power cord isfirmly plugged into themonitor and theelectrical outlet.• If the power cord plughas a removable fuse,replace it.• Try another powercord.• Try another electricaloutlet.Connecting youmonitor startingon page4.Screen is blank andpower indicator issteady green.Brightness andContrast may be toolow.• Adjust brightness andcontrast.User controlssection startingon page 9.SIGNAL OUT OFRANGE message isdisplayed.Display mode of thecomputer is outsidethe range of themonitor.• Reconfigure thecomputer to use asupported displaymode.Furtherinformationsection startingon page 14.CHECK SIGNALCABLE message isdisplayed.Video cableconnection.• Check the signalcable is firmlyconnected to thecomputer.• Check no pins arebent in the signalcable connector.The monitor is inPower ManagementStandby/Suspend orOff state.• Press any key on thekeyboard or move themouse to restoreoperation.Screen is blank andpower indicator isamber.No video signal fromthe computer.• Check the computer ispowered on.• Check the signalcable is firmlyconnected to thecomputer.• Check no pins arebent in the signalcable connector.Image appears to beflickering.The monitor isoperating in aninterlaced or lowrefresh rate displaymode.• Reconfigure thecomputer to use anon-interlaced displaymode with a refreshrate of at least 75 Hz.Furtherinformationsection startingon page 14.