363M™ Digital Projector X56© 3M 2011. All Rights Reserved.7. TroubleshootingAbout the phenomenon confused with a machine defect, check and cope with itaccording to the following table.Phenomena that may be easy to be mistaken for machine defectsPhenomenon Cases not involving a machine defect ReferencepageIntellectualStack does notfunction.No power is supplied to the Main and Subprojector.To use the Intellectual Stack feature,supply AC power to both the Main and Subprojectors. If AC power is supplied to onlyone of the projectors, Intellectual Stack isdisabled.8in Operator’sGuideThe RS-232C cable between the Main andSub projectors is not properly connected.To use the Intellectual Stack feature, connectan RS-232C cross cable between the Mainand Sub projectors. If the cable is notconnected, the Main projector cannot controlthe Sub projector.11The menu settings for Intellectual Stackare not performed correctly.Check the settings of the STACK menu onthe Main and Sub projectors. To use theIntellectual Stack feature, one projector mustbe set to Main and the other projector mustbe set to Sub.18Signal cables are not connected correctly.Check the connection of cables. Also checkthat the cable connection matches with theport settings in the menu.2810 - 14in Operator’sGuideThe Main andSub projector donot operate insynchronization.The RS-232C cable between the Main andSub projectors is not properly connected.Connect the RS-232C cable properly andrestart the Main projector.11(continued on next page)