I bought a DP-2000 from a guy who said that speed stability was rock solid. Surprise. It ain't. The strobe display moves counter-clockwise in small "chunks" instead of remaining perfectly still. It does this at 33 and 45 (except faster "chunks"). By "chunks" I mean that the strobe pattern moves about a half inch pauses briefly, then moves again, and again, and again....

Now, I know that these regulate speed via a magnetic coating on the inside of the platter rim which is read by a tape head-like reader. I've seen Denons where this rim has been scratched and/or damaged and the speed control is history. However, on this one, the rim looks perfect and the head looks fine I cleaned it with alcohol).

Further, since this speed variation exhibits itself in "chunks" instead of a smooth strobe movement in one direction or another, as I am used to when using a strobe pattern on other tables) I wonder if it is an issue with "cogging" of the motor or some other electrical "pulsing" anomaly.

Given nearly zero experience with these Denons, I am stumped. Anyone else have a solution or ideas?