Customer brought me two Akai S612 Sampler and two MD280 Quickdisk Drive. On both units the quickdisk wasn’t working, disc did not load. I expected the belt were worn out and it was. I ordered new belts and that solved the problem. I also noticed that the pots and sliders were dirty, so I cleaned these (desolder,open,clean…). I also suggested to change the tactiles what I did then. Jacks too. On one unit it was fun to change the LEDs (and the resistors) to blue. Usually I don´t really like the blue LEDs but in this case it looked pretty amazing. Still need a blue 7-segment for this. Could’t find the right replacement for this until now. If someone knows, please let me know. Both Akai S612 Sampler tested ok. Quickdisc is loading. Customer liked the result. Like always I share my knowledge and pictures with you.