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DLP4710EVM-LC: trouble

Part Number: DLP4710EVM-LC

I have recently purchased a DLP4710EVM-LC. I followed the Quick-Start Procedure in the manual to start the DLP4710EVM-LC.

When I pushed the SW21, the power was turned on and a splash image was projected. I was also able to change the image using the GUI of the software installed on my PC. After that, I followed the Quick-Start Procedure and shut down the DLP4710EVM-LC.

Then, I started the DLP4710EVM-LC in the same way. The power was turned on. However, the light did not turn on when I pressed SW21. I could not see any image.  

Please tell me how to start the projector.

The firmware has not been changed.