This synth is one that I have always wanted. being a fan of Yazoo I always loved the crisp electronic sound of this powerful mono synth. I saw one on eBay that needed a bit of work. The tuning was all over the place and one key was broken, but it seemed functionally ok.
I replaced the DAC chip and all the electrolytic capacitors. I then did a tune up. Some of the pots were scratchy so a quick blast of switch cleaner and they were much better. One of the wooden side panels was damaged so I just rounded off the broken corner. A bit of a sand down and some wood stain and they looked proper job. I got some new knob caps to spruce up the front panel. They was a cigarette burn near the bend wheel but hey it's a bit rock'n'roll.
Once I had the synth working, I decided to upgrade it to the rather excellent Turbo CPU. This replaces the current CPU with an upgraded PCB. This allows MIDI and other functions.