Resolvingimage issues
Toresolve common imageiss ues, completet hef ollowingtasks :
lEnsurethe computeror other video sourceis onand set to display a resolution andrefresh rate
supportedby the projector(see Video formatc ompatibility on page29).
lEnsurethe video sourceis properlyconnectedto the projector.
lPressthe Input Select button on the remote controlor ECP toswitc h to the correct video
source.
If these tasks don’t resolve the issue, refert o the followingsect ions for additionaltroubleshooting
information.
Lossof signal
If avideo source signalis not detected, outof
rangeof the projector’ssupport video modesor
thesignal is being switched to a different device
orinput, the projectordoesn’t show a source
signaland instead displays the SMART logo on
ablue screen.
gTo resolvesignal loss issues
1. W ait approximately45 seconds for the image to synchronize. Somev ideosignals requirea
longersynchronizationperiod.
2. I f the imagedoesn’t sy nchronize,check the cable connections to the projectorand the ECP.
3. E nsurethat the image signal is compatible with the projector(see Video format compatibility
onpage 29).
4. I f there areany extension cables, switc h boxes, connectionwall plates or other devices in the
videoconnection from the computerto the projector, temporarilyremove them to ensurethey
arenot causing the videos ignalloss.
5. I f your projectorstill doesn’tshow a source signal, contact your authorizedSMART reseller.
CH A P T E R 6
Troubleshootingyour interactive whiteboard system
51