EMS 256 Sequencer Repair Part 4

In this episode we edge closer to getting this legend back in full working order. Now I have my extender cards I can probe the circuits and start debugging the rest of the faults. After checking around the recirculation circuits and shift registers I decided to remove the 'Time Extender Board'. Now it plays back recordings! I have to do some more research on this board in the next episode. Thank you https://www.pcbway.com for making the extender boards. They were perfect! This EMS 256 is part of Pete Townshend synth collection at https://www.uwl.ac.uk/study/study-fac...