This error code is probably proceeded by the warning code: “dmdblue - temperature high”. The same troubleshooting table canbe applied to.

Situation	Solution
Blocked fan of the blue channel.	Check if the fan can turn freely.
The wire unit of the temperature sensor (NTC) of the DMD inthe blue channel is disconnected from the Formatting Interface Board.	Check if the wire unit (reference SB) of the temperature sensor (NTC) of theDMD in the blue channel is connected with the Formatting InterfaceBoard.
Defect temperature sensor which measures the temperature ofthe blue channel.	Replace the whole Light Processor Unit. Contact Barco for furtherinstructions to repair the malfunction Light Processor Unit. It istoo critical to replace this temperature sensor in the field. Thereplacement of this temperature sensor must be done at factory orat an authorized service center.

SB	Wireunit of temperature sensor at the rear of the DMD of the blue channel.
SG	Wireunit of temperature sensor at the rear of the DMD of the green channel.
SR	Wireunit of temperature sensor at the rear of the DMD of the red channel.
FB	Wireunit of the fan at the rear of the DMD of the blue channel.
FG	Wireunit of the fan at the rear of the DMD of the green channel.
FR	Wireunit of the fan at the rear of the DMD of the red channel.
SH	Wireunit of the shutter.
LS	Wireunit of the light sensor inside the light pipe (behind the fold mirror).
PR	Wireunit of the Prism touch sensor.

Code 5290: “dmd blue - temperaturetoo high” (Error)