Systemdek 11X Issues

 Hello. I recently bought a used Systemdek 11X with low, low miles. I set it all up and gave it a whirl. The motor  hums and the bearing has a low volume knock. What would do if it were your deck? Part it out or replace parts, what?I have the feeling that a motor and bearing assembly might be a bit too much to make it cost effective. I have not flipped it over yet to do some cursory troubleshooting. I wanted to get some collected wisdom here before I proceed in any direction. The noise doesn't seem to reach the speakers which seems a bit odd to me. All opinions and knowledge would be helpful. Thanks.