[sdiy] Digidesign Focusrite control 24 schematics

[Roman Sowa]

Are you sure they are LCDs? If so my first bet would be on typical 
HD44780 interface. From the blury pictures I see they look to me a bit 
like LED matrix, something like HDSP2131 - but those are 8 digits.

My secong guess is that any customization was related only to size, 
leaving control protocol the same as common displays.

Roman

W dniu 2026-05-26 o 14:00, H.Sergio Alves via Synth-diy pisze:
> Long shot but does anyone have the schematics for this monster 
> controller? Spoke with Avid and Focusrite and none of them have them (I 
> know it’s wild but hey…)
> I’m looking to reuse the small 4 digits lcds but need to figure out how 
> they’re connected and the protocol used to speak with the Zilog.. spoke 
> to the manufacturer of the screens but since these were made custom and 
> over 20 years ago they don’t have any documentation available anymore.
> Thanks for any help you can provide In advance :)
> 
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