Vintage Simmons Drums (UK) Users Group

Sometimes the pipes at yahoogroups clog and I need to manually sort it 
out. I found two stuck mails yesterday...

/moderator

Den 2016-04-26 kl. 11:26, skrev 'Hans' hr.public@... 
[Simmons_Drums]:
> Not sure what happened with the 10 day delay of my mail. Anyway, I\u2019ve
> been able to power up my SDS7 again and done some probing to answer my
> question in my last mail.
>
> Although, if Thierry\u2019s schematic is availably it would be interesting to
> compare it to my own ideas accumulated last 10 days J
>
> It should not be hard to replace the cpu/memory and user panel with 15
> whirling knobs and a MPU developer board.
>
> Best
>
> hans
>
> *Fra:*Simmons_Drums@yahoogroups.com
> <mailto:Simmons_Drums@yahoogroups.com>
> [mailto:Simmons_Drums@yahoogroups.com]
> *Sendt:* 16. april 2016 11:09
> *Til:* Simmons_Drums@yahoogroups.com <mailto:Simmons_Drums@yahoogroups.com>
> *Emne:* [Simmons Drums] SDS7 Voice Card databus question
>
> Looking at Thierry\u2019s amazing reverse engineering of the SDS7 voice board
> I\u2019m wondering one thing.
>
> According to my understanding all CV\u2019s to alter the dynamics of the
> sound seems to be extracted from the trigger input on each individual
> voice card. No need for the CPU to actually know dynamics.
>
> Are there S&H circuits hidden on the Hybrid module in conjunction with
> the VCA\u2019s? Enabling the CPU to burst stored kit data continues to the bus.
>
> Or does the CPU actually wait for a trigger input before bursting
> corresponding data to trigger source?
>
> If possible I love to see Thierry\u2019s schematic for his single voice test
> board? I guess that paper will fill the void.
>
>
> Thanks!
> Hans
>
> 
>
> No virus found in this message.
> Checked by AVG - www.avg.com <http://www.avg.com>
> Version: 2016.0.7539 / Virus Database: 4563/12105 - Release Date: 04/26/16
>

-- 
electronically yours, jesper

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