Hi,
I bought a SDS7 and I noticed a few problems. I'm drawing the schematics of the CPU board. Later, I'll do the voice card.
Some years later, I drew the schematics of the SDS9. It was a long work!!!!
I also read the firmware from the EPROM and disassemble it to analyse how the program works. Maybe it will possible to replace the RAM by FLASH with some changes.
Well, I can keep you informed.
Yves
________________________________
De : "
vout@..." <
vout@...>
À :
Simmons_Drums@yahoogroups.com Envoyé le : Samedi 27 octobre 2012 14h05
Objet : [Simmons Drums] SDS7 Schematics
Hi,
I recently had to try and troubleshoot a faulty SDS7 voice card, but it was difficult because the SDS7 service manual that is freely available has very poor quality (virtually unreadable) schematics for the actual voice boards, and the other schematics are not much better.
Does anyone know if better quality schematics exist for the SDS7 and are they available anywhere? I would be happy to pay.
Also, I've asked before but no harm in asking again - does anyone have an SDS6/7 memory cartridge for sale?
Cheers, vout
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