Thanks SlowGraowth. Interest knows no bounds with me – which has both advantages and disadvantages…
I also discovered running the Boot Menu Test that the Main Volume Pot is not reported with the control tests. I think it is an analog only control – which accounts for all the connectors on the pot – it is ‘stereo’. So the second bus cable (the left one looking at the component side of the CPU board) has these signals going to the audio section on the CPU board.
(You’re right i am interested in this kind of stuff!)
I’ve been of several minds on the OLED’s control processor – definitely leaning toward your conclusion.
Rather than a slimmer Digitakt i’d put in a battery pack - Heaven. Then it’s the same depth and a cool little sampler and power free performer. (But the $650 price tag is nice too.)