[sdiy-interim] Roland CR-78 EPROM ?

[Ullrich Peter]

Hi!

>talking about EPROMs... (and they supernova next to be status)
>
>1)
>Do you know the EPROM type/model for the CR 78?

2708

>2)
>Do you know how the data is stored in the EPROM? What is the space
>address for the single pattern ? Space addres for the variations ?
>(I was thinking to create some new style EPROM)s

I don't know how the data is stored but the working priciple is 
described in the service notes. I haven't read the details but
the description is very useful.

If someone can offer about 6MB of his webspace (mine is full) I
can send him the Service Notes as PDF so that everybody who needs
them can load it from there as the original scans from Seb Francis 
are not online any longer... and were about 15MB TIFFs...

Ciao
Peter

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Peter Ullrich I Hardware Engineer, Research & Development
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