Am 18.02.2015 um 09:50 schrieb yahoo@... [Doepfer_a100]:

>> assume I have to remove the 3.5mm
>> jack screws on the top of the casing What's the proper tool to do so
>>
> You need a suitable socket wrench (about 11 mm). Even pliers may be used but this increases the risk to damage the case and nuts.
>

Hello Frank

If you don't have a wrench set, then you may use a universal plier with
a protecting adhesive tape like seen here:
http://fa.utfs.org/diy/monopoly_mirage/images/100-0055_IMG.jpg

Florian