Worth fixing?

@vinylvin I agree. Try cleaning, swapping. 
 

@qialah 

Did you swap interconnects to see if the problem swapped channels?

Did you use the same interconnects with the replacement player? 

I sold a guy an integrated and tested it with/for him. He called when he made it home and said one channel stopped working. I told him to do some testing (swap cables) and return for a refund if he couldn’t figure it out. It was the cables. 
 

Good luck, let us know…

You should just get a newer Rotel RCD-1572MKII, you can find them for around $1,200.00 or try to find a new older RCD-1572 I have 2 of them and I paid around $700.00 for each, just take your time and you can find some deals on demo models from many different brands.

Wish it well, and replace it with an Audiolab 6000CDT…..great unit, but transport only…..you didn’t mention if you had a DAC

When I finally get rid of a piece of equipment, I thank it for it's service. Sounds weird, but it makes me feel less guilty. And FWIW, if you thrift or recycle it, there are hobbyists that love fixing stuff on their own time.

Could just be a cold solder joint……..

Worth opening the hood to check…?