Sx2 rebooted during dj session and now audio not work (main booth headphone)

Last night the sx2 all of a sudden rebooted and now it no longer produces audio (from main output booth and headphone) but you can only hear beat in the background that increases using channel gain (like a bass from a dance song) and level of channel show this sound (attach the example file)

https://www.smashmixtape.com/probelm-pioneer.mov 

This is when the channels are set to cd/mic/phono while when on pc I can see the songs playing but I can't hear them.

What could it be, did something "burn out" chip or transistor?

Who can help me?

Thanks very much.