Check your headshell connections to see if any have loosened, the same with all other connections from the RCA cabling and DIN connectors should they be present. A cheater plug on the tables power cord may also help. If you have TV cable connected to your system this may also be the culprit. If that is the case you can try calling the cable company (I doubt they'll do anything, as they didn't in my case) but Mondial makes an isolation device that is very effective called the Mondial Magic, selling for around $75 (at least that's what I paid for mine about 6 years ago). I hope this advise helps. Happy listening.