Florian Anwander - Roland Jupiter-6 (JP6) restoration

A customer gave me this synth with the order to install the Europ Kit and to restorate it. The faders were very scratchy, the sustain slider of Envelope 1 did not work at all and the LFO-trigger button did not work. I bought a full slider and potentiometer set from ebay (seller technologytransplant), and the customer bought the europa Kit.
The over all look of the synth wasn't too bad, but...