This console will read and play all discs but..... only till it warms up.

Then the screen will do 1 of 2 things, it will either freeze the screen but leave the sound running, or

if your in between switching discs it will just stay black.

I have to let it cool off untill it is room temp again before I can turn it on again without the black screen.

What is causeing this and how do I fix it?