Hmmm, I wish I didn't have a pesky B2 blocking my E70 up against a wall so I could see. I think you may be right about DCO. The E70 stays in tune so well while my CS50 is the worst synth I have ever seen (for warm up time and stability).
I am getting the E70 to CS80 mod manual from Marc as soon as I send him an email. I'm not going to modify the E70. I'm just curious. I will see if the mod instructions hint at anything. From all the E70 to CS80 conversion info I have been reading people make it sound like its very similar.
But it wouldn't make that much sense that there is an E70 for $600 near me at a pawn shop and on Clist (Hint:an hour west of you Jim) and it hasn't sold and I picked up an E70 in mint condition of craiglsit a few weeks ago...and it was on Craigslist for weeks before I got it. The talk that I've read online says there are somewhere are 21 voice cards in an E70???
b3groover <
b3groover@...> wrote:
>I don't think the voice cards are the same at all. I think they use a
>similar topology but very different components and connections. For
>instance, I believe the oscillators are DCO, not VCO. I could be wrong.
> But I'm pretty sure it's not 1:1. I know for certain they use different
>chips, as I've seen an old Yamaha pinout book for their custom chips and
>the ones in the CS are different than those in the organs.
>
>----Jim
>
>On Wed, Apr 4, 2012 at 8:58 PM, dzlvs8 <dzlvs8@...> wrote:
>
>> ∗∗
>>
>>
>> I have a Yamaha CS50 and a just got a Yamaha E70 Electone organ. I know
>> that the E70 has the same PASS architecture as the CS50/CS80. So does that
>> mean that I could swap out a voice card in my CS50 with a voice card in the
>> CS80??????
>>
>> I assume not because they connecting wires are different. But if anyone
>> know, it would be helpful. One of my CS50 voice cards has something wrong
>> with it and I cant get notes in tune throughout the entire range of tones
>> (yes I know how to calibrate it).
>>
>>
>>
>
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