Code 5641: “lamp power supplies - lamp is on, but smps is off” (Error)

Situation

Solution

Malfunction SMPS module.

Replace the SMPS module. See "Replacement of the Switched Mode Power Supply".

Malfunction LPS module.

Replace the LPS module. See "Lamp power supply" or "Lamp power supply (single module)".

Defect Signal Backplane.

Replace the Signal Backplane. See "Replacement of the signal back plane".