My Yamaha CD-S300 CD player is showing UNSUPPORT on the display whenever I put a CD in. It seems to display LOADING for a bit longer than usual and then goes to the UNSUPPORT message and won’t play the CD. I can’t hear any noise so I’m assuming that the disc is not spinning. Switching to the USB mode and then back to the CD mode doesn’t work - it then displays NO DISC. If I then eject the disc and put it back in again I get the UNSUPPORT message again. I have tried several different discs and got the same result. In desperation I even tried turning the player off and on again! (Didn’t help.)