[CD Player Distortion Issues] Yamaha CD-S300

Hi all,

I have a Yamaha R-S202 Receiver, and Alesis Elevate 3 speakers (temporary and small).
I typically use a turntable (RCA outs), a cassette deck (RCA outs), or the receiver's bluetooth without any quality issues.

I purchased a used Yamaha CD-S300 CD player, and plugged it into my receiver's RCA inputs, and there is a noticeable distorted quality to the sound.
I've tried different receiver inputs, cables, and CDs.

Are there any other troubleshooting/repairs I can easily make?
Cleaning the RCA ports, cleaning the laser?

Thanks, in advance!