RE: MPS 6530

From: Hoffmann-Vetter, Martin <>
Date: Fri, 22 Jun 2012 13:42:40 +0200
Message-ID: <004201cd506c$21f50c10$>
>> 034 4040 DOS 2.0/2.1
> Does anyone know a source for these? The one in my 2040-made-4040, as
> I stated in another thread, is kaputski. I am relieved to see that
> there were no changes to the part between DOS 2.0 and 2.1;

All DOS 2 versions use the 901466-04 6530-034. All DOS 1 versions use the
901466-01 or 901466-02 6530-028. The 901466-01 and the 901466-02 have the
same rom content. The difference is at this time unknown!

But all DC-RRIOTS (6530-028, 6530-034, 6530-036, 6530-038, 6530-039,
6530-040, 6530-044, 6530-047 and 6530-048) use the same address programmable
logic. So only the rom content is changed. Look at the 8250LP or the
SFD1001, there don't exists a new RRIOT. They used an old RRIOT on an
adapter board and put the rom content in an additional eprom. On the same
way, you can use any RRIOT above to repair any commodore floppy disc drive.


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Received on 2012-06-22 12:00:35

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