how to fix a CD player

I bought an Onkyo CD player from my once favorite source (I start to suspect they auction stuff out from electronic recycling.)

It's playing for a few minutes and then stops. I can't go to the next track, the display in the front is dim. I was wondering if its' easy to fix (easy steps to try), there is a repair kit on ebay for $15.

It's probably 10 years old, otherwise in good shape. (I thought I could sell my current CD player, keep this one, and cash $80 or so for an upgrade for another component.

Or is it best not to waste my time and ditch this thing? It's C-7030, reviews are mixed, when it comes to reliability, not so kind.

Thanks your for your insight