LPS communication cable disconnected from the J3 port of the ULCB unit.

Check if the LPS communication cable (reference 3 of image) is connected with the J3 port of the ULCB unit.

LPS communication cable disconnected from the Signal Backplane.

Check if the LPS communication cable (reference 6 of image) is connected with the Signal Backplane.

Lamp Ballast communication cable disconnected from the J1 and J2 port of the ULCB unit.

Check if the Lamp Ballast communication cable (reference 4 and 5 of image) is connected with the J1 and J2 port of the ULCB unit.

Lamp Ballast communication cable disconnected from the CN2 port of the Lamp Ballast unit.

Check if the Lamp Ballast communication cable (reference 7 of image) is connected with the CN2 port of the Lamp Ballast unit.

Malfunction of the Lamp Ballast module.

Replace the Lamp Ballast module. See service manual chapter "Lamp Power Supply (LPS)".

Malfunction Barco Cinema Controller board.

Replace the malfunction Barco Cinema Controller board. See service manual chapter "Replacement of the Cinema Controller".

Malfunction PFC module

Replace PFC Module (reference 8 of image).