[Coco] Problem w/HDBDos chip

[Arthur Flexser]

Drive cable plugged in backwards?

Edge contacts need cleaning?

Bad 6809?

Art

On Sun, Feb 8, 2015 at 9:38 AM, Bill <cwgordon at carolina.rr.com> wrote:

> I have two HDBDos eprom chips that have been working beautifully with
> DriveWire 4.33 for over a year in an FD-501 controller on my dual 3 ½”
> drives. However, with this latest purchase of Coco “stuff”, I received a
> set
> of dual 5 ¼” drives. I hooked up the controller with the  HDBDos eprom chip
> in it, and it worked great UNTIL I tried to access the physical drives. I
> typed DRIVE OFF (which had been working on this very computer), and all I
> got was NOTHING. The drive light came on, but that was it. And the disk
> worked perfectly with another FD-501 controller with original RS-Dos in it.
>
>
>
> Ideas? What more info do you need to hazard a guess?
>
>
>
> Thanks
>
>
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