[sdiy] Digidesign Focusrite control 24 schematics

[grant musictechnologiesgroup.com]

Standard single-digit guys if this is what you are asking about:

https://www.ebay.com/itm/175869902159

GB

On 5/26/2026 5:31 AM, Roman Sowa via Synth-diy wrote:
> 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 :)
>>
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org