On 13/12/2012 22:16, RJH wrote:

Sounds like a combination of wildly out tracking weight, bias adjustment
and turntable level. Can't think how/why else that could happen. Has the
TT been moved or adjusted recently?

Or any children in the house?

Is the bias provided by a weight on a thread, like an SME arm?
It could be wrapped round something.

--
Eiron.