Thanks Silas and Dieter for the information.

One of the racks in my system is from 1999 apparently, so it looks
like I have some hours of fun ahead of me as curl all the jack
contacts on the modules...

Can anyone recommend a pin-for-pin replacement jack socket
It may be quicker for me to replace the sockets - assuming there are
no double sided pcb's.

thanks again

Andy

>
> > The first production runs used a different brand of mini jacks which
> > had some problems with reliability. According to list lore the
> > problems can be alleviated by gently pushing somewhere on the socket
> > with a small screwdriver - this procedure is described somewhere on
> > the Doepfer website, IIRC.
>
> Only modules manufactured before ~ 2002 may be affected by this

problem as

> the material used for the spring contact was a bit too flimsy and

not curled

> (the new socket used from ~ 2002 have so called "curly contacts").

By the

> way modules from all manufacturers that used the 3.5 mm Cliff

sockets have

> been affected by this problem, not only A-100 modules (as sometimes

stated).

> On our FAQ page you find some instructions how to solve the problem.
>
> Best wishes
> Dieter Doepfer
>