Denon DP-47F arm return problem? Help needed


I bought a used Denon DP-47F a full automatic, micro-processor controlled, direct drive turntable yesterday.

The arm does not return to the rest after playing a side and the repeat function switch does not work. They seem related as they take place at the end of an LP. It seems to be a voltage adjustment, but I can't figure it out in the service manual.

Can anyone help me with this problem. It would be nice if I can adjust it myself, but I would like a repair service recommendation too.

Service manual manual is available on Vinyl Engine:
http://www.vinylengine.com/library/denon/dp-47f.shtml

Thank everyone so much, as this is a really nice TT.
128x128mjcmt
Thanks Pascal from France.
I believe your correct that it is a voltage adjustment. I should have tried re-calibrating it, but on a whim sold it as a defective unit. My mistake.
Mike from USA
I too am having a problem with my 47f. When I push start the arm begins to move over but after moving about an inch it returns to the rest. Could this be the same as another post where it involves some photo electric cells on a board under the tonearm?
Hello from Russia, Sochi!
Many thanks to Pascal from France, your help very much helped. My friend's Denon DP-47F had a similar problem, after replacement of the faulty photoresistor the turntable began to function adequately.