LPS communication cable disconnected from the Power Backplane.

Remove the Input & Communication unit to see the connectionsof the Power Backplane. Check if the LPS communication cable (referenceC1 of ) is inserted in itssocket.

LPS communication cable disconnected form the LPS communicationinterface.

Remove the back cover of the projector and check if the LPScommunication cable (reference C2 of ) is connected with the LPS

Disconnected CTRL wire unit between LPS communication interfaceand LPS unit.

Check if the CTRL wire unit (reference C3 of ) is properly connected with the LPS unitand the LPS communication interface.

Main power cable disconnected from one of the LPS units.

Check if the main power cable is connected with the “MAINSINPUT” socket of the LPS unit.

Disconnected wire unit between the “CTRL IN” and“CTRL OUT” sockets of the LPS units.

Reconnect the wire unit between the “CTRL IN”and “CTRL OUT” sockets of the LPS units.

Malfunction of one of the LPS units. The red LED “ERR”of the malfunction LPS unit flashes fast.

Replace the whole LPS module.

No communication possible with both LPS units. (Check log files)

Replace the LPS communication interface.