[Coco] Help identifying after-market disk controller board?

Leslie Ayling layling at bigpond.net.au
Mon Mar 6 19:40:33 EST 2017


Hi Bob,

No lettering on the board that I can see, although it has been trimmed 
slightly to fit another case.

I'm located in Sydney, so it isn't inconceivable that it may be one of 
yours :)

> I think I have the schematic and adjustment procedure here in my 
> midden heap.
Be great to get a copy of those if you come across them.

Components around the WD2793 match the datasheet example design
(same as the MicroBee disk controller incidentally), so it won't be too 
hard to align if ever necessary.

It works great by the way!

Cheers,
Leslie

P.S. Thanks to everyone else for your responses also.

------ Original Message ------
From: "Bob Devries" <devries.bob at gmail.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Tuesday, 7 Mar, 2017 At 10:51 AM
Subject: Re: [Coco] Help identifying after-market disk controller board?

Hi Leslie,
I built a number of disk controllers using a controller board that 
looked very much like the one in the pictures. Dome of the boards had 
the letters DVE on one side denoting the initials of the designer's 
business name here in Queensland, Australia
I think I have the schematic and adjustment procedure here in my midden 
heap.

Regards, Bob Devries
Dalby, QLD, Australia

On 2017-03-06 8:15 PM, Leslie Ayling wrote:
> Hi All,
>
> Can anyone help in identifying the following disk controller board?
>
> http://www.crisis.com.au/images/2793_front_sm.jpg
> http://www.crisis.com.au/images/2793_rear_sm.jpg
>
> Has a WD2793 FDC, and few external components.
> No markings on the board which might hint at its' pedigree I'm afraid.
>
> EPROM has DECB V1.1 programmed, though I haven't checked for any 
> patches yet.
>
> T.I.A.
> Leslie
>
>
>

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