Hello, I pulled out my dad's old system from back in the day because my current turntable isn't quite meeting my needs anymore and I figured a classic might be better. My dad's system is a Sharp SG-950CD and everything on the unit works fine except for the turntable, which spins slower than it should. I tried replacing the belt in the turntable but that did not help and I was wondering if anyone has come across this problem with this system and could provide some help. Thank you!