I also need a diagram, but I suspect it is locked away within the B&O vaults somewhere, never to see the light of day again! Maybe a letter to B&O themselves but make sure it is sort of, 'authorative' in some way! These units are relatively simple though, and I am sure if you describe the symptoms there is a chance the fault could be

liftoff should be quick, although while I am convinced the 4000 had a purpose built delay (I have not proven this to myself yet) the later decks do not, so if there is a little bit of stickyness anywhere in the system it will appear to drag the cart out of the groove. I would look at the where the plunger from the damper meets the cueing arm lever.

Great thread and I really like white Pentas!

Excellent, so is everything working now?

Well I would say the answer can be found in a 4002/4 service manual! The mute circuit would be exactly the kind of thing you could use! If it is as bad as you say then really it needs to be sorted out and as Tournedos suggests above maybe aging supply capacitors etc. are to blame?

I gave this a little thought. Basically, assuming this cannot be cured by replacing a reasonable number of components that might ordinarily be replaced, While I do not think it would be enough to simply add a delayed relay on the outputs, if you add a small resistor (perhaps fuesable?) to the default contacts to ground the output, this would ensure

Nice one Geoff!

Thanks Graham! I might give it a go

@Solderon29 is it possible to remove these without damage? I have one that is intact atm and I would like to examine it, as I have never seen a broken one yet. I also have quite a nice lathe (Myford ML7) with lots of accesories that belonged to my grandfather. I would really like to learn how to use the thing and have a go at making such part, otherwise

Well SH at least we know how best to preserve those rubber belts! Store in a carport loL! I have my fingers crossed for you that the missing segments will just be drys, and not the chips.