YamahaDX : Mailinglist dedicated to the Yamaha DX series synthesizers. (DX7, DX21, DX27, DX100, TX81Z, etc.) For swapping patches.

Mailinglist dedicated to the Yamaha DX series synthesizers. (DX7, DX21, DX27, DX100, TX81Z, etc.) For swapping patches.

Re: DX21/27/100 My DX21 is Version 1.5 09-Aug-85 John Posted - Sat Nov 21, 2009 3:37 am	John Wardle bf655 Offline Send Email
Re: No sound DX-7 II Frank, That's relatively cheap for that obsolete IC. I would buy it as a spare anyway. It's used in lots of keyboards and processors of that era.But don't be Posted - Sat Nov 21, 2009 1:38 am	Gregg Sheehan auddoc Offline Send Email
Re: No sound DX-7 II Gregg, couldn't reply on your group message because it was quite messed up. But I've read it and had the DX tested with a scope. Almost all inputs had some Posted - Fri Nov 20, 2009 11:59 pm	Frank de Ruiter frankderuiter Offline Send Email
Re: No sound DX-7 II Does anybody out there, have a scan of the actual schematic of the DX7IID/FD? I remember it was a big honkin' foldout like all Yamaha schematics of the day, Posted - Fri Nov 20, 2009 7:42 pm	Gregg Sheehan auddoc Offline Send Email
Re: No sound DX-7 II Frank Is there coherent activity on the data inputs or change in the waveforms taking place when playing the keyboard? It's dynamic not static, but Posted - Fri Nov 20, 2009 7:04 pm	Gregg Sheehan auddoc Offline Send Email
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