> SO I am trying to fix the doepfer ribbon controller because the
> USB connector on the controller has become loose and intermittent.
>
> I removed all the screws (including two which appeared to have
> been glued in place with Loctite and required screw extractor tools).
>
> Now that the screws are undone I need to get under the circuit
> board so I can replace or resolder the usb connector.
> The problem is that it won't come out of the enclosure. I would
> have thought that it would just fall out when held upside down
> but it does not budge. I have tried leveraging the edges with a
> flat blade screwdriver but all that happens is the PCB flexes at
> that point.
>
> How do I remove this

It is a bit tricky to replace the USB socket of the R2M/A-198 manual because
the pc board is glued by means of double sided adhesive tape to the case.
You have to lift the end of the long pc board very carefully (e.g. by means
of a screw driver) until you are able to reach the solder points of the
socket with your soldering iron. Pay attention that the playing area is not
lifted. If you are not familiar with such things please send in the manual
for repair.

Best wishes
Dieter Doepfer