[sdiy] Oberheim OBXA issues

Florian Anwander fanwander at mnet-online.de
Wed May 11 21:39:42 CEST 2022

Hello Al

do you know, whether your "synth guru" reprogrammed the original eprom 
chip, or whether he replaced the chip with NOS?


Am 11.05.22 um 17:42 schrieb al spitzley via Synth-diy:
> So the Oberheim is now up and running thanks to my local synth guru! 
> The imain ssues were one corrupt eprom and a wrong part was installed 
> in the lower control board. Don't  know how I didn't notice the latter!
> So now I'm trying to get the old JL Cooper midi interface to work. It 
> arrived outside of the synth with no cover on the eprom window. I 
> assume it had been exposed for a few years so suspect this could be a 
> cause of the interface not working. It is a Rev 1.1 board. A long shot 
> I know, but does anyone have a bin file for the JL Cooper Obxa midi board?
> Thanks in advance and also thanks for all the prior help!

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