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Just in case someone finds this thread again in the future. In the end, I gave up trying with the keyboard, and bought another (working) M1 at the right price. And the first thing I did after getting my "new" shiny working purchase back was to rip the back of it and do some comparisons. The only ...

Thanks for keeping this project going Sunriser! Keep up the great work!

I've just downloaded it, yet to hook up to MIDI and importing my SYX's, but this looks really great and I appreciate that someone out there is still doing M1 things! Well done! I have two feature requests for the next version: One is to not automatically export to library any sounds above 99 that ...

A little update: I have changed all the caps in the sub PSU area on the DAC board. I discovered that C57 on the positive rail had an ESR of 4.7R and C56 on the negative rail had an ESR of 3.4R. They are now replaced as are their brethren with caps all having an ESR less than 0.2R. I also replaced ...

Wow, thanks for all the tips T3! I didn't think to scope the PSU rails, I went straight in the deep end looking at pulses on the DAC! With my oscilloscope, I'm reading about 40mV P-P ripple with reference to the local ground for both the +12 and -12v at the DAC board connector CN12A. Is that about ...

Hi everyone, I'm not so much hijacking this thread as continuing it from its previous owner - guessing there are that not that many M1s sold in Leeds in the last few weeks with a non working A# and G# and low battery alert! Some good news - I have cured the low battery alert. Turns out D10 on the ...