Re: Upgrade 2040/3040 DOS 1 floppy drive to DOS 2?

From: Wolfgang Moser <womo_at_news.trikaliotis.net>
Date: Sat, 31 Jul 2010 22:28:14 +0200
Message-ID: <i320v3$5hq$1@vs5413.trikaliotis.net>
Hello Martin,

Hoffmann-Vetter, Martin schrieb:
>> are the daughterboards the same as used in SFD1001 drives?
> 
> If i correct remember, there are two versions of the daugtherboards.
> One is for the SFD1001 and the other for the 8250LP. The board from
> the 8250LP is in the 8296-D, too.

it looks as if you are right.

  http://d81.de/shared/8250LP_vs_SFD1001_Daughterboard.jpg

> But the schematics must be the same with some small differents
> because there is an other layout. Only the size of the pcb are very
> different.

As you can see in the photo above that I made from my non-working 8250LP
and a SFD1001 board that I put on top, the boards are not very
different. Shape and parts placement are rather similar, but the trace
routing differs totally.

> The pcb 250414-01 (schematic 251252-01) is for the sfd-1001 and the 
> 250414-02 (schematic 251252-02) is for the 8250lp. Have a look to 
> http://www.amiga-stuff.com/hardware/cbmboards.html.
> 
> You see, the pcb and schematics number is only different in the
> revision.

 Board                  PCB Assy   Schematic  PCB fabrication  Artwork
 8250LP 6530 adaptor    250414-02  251252-02  251457           251475
 SFD-1001 6530 adaptor  250414-01  251252-01  251232           251462

For the 8250LP converter board I can confirm the PCB fab. no.



Anders, I think before you get back to my offer, you have to verify
according to the schematics that both converter boards are compatible to
each other.


Womo

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Received on 2010-07-31 21:00:03

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