DJM-350 power up problem

Hello

I'm having an issue with my DJM-350, its just started happening out of the blue. I plug it in and power comes to the unit solid red power light. I turn it on and all the channel lights flash up like normal. Then the unit clicks, everything turns off and the red power light blinks rapidly. I'm assuming this indicates some sort of error, but after searching online not sure what it is.

Any ideas?

Thanks

Matt