[Coco] Disk controller

[Camillus Blockx]

I had that once with one of my controllers, it was a defect chip, one
of the logic chips, 7404 I think at the side of the ribbon cable
connector. Hope is similar in your case, cost penny's to fix.

cba


On Thu, Mar 27, 2014 at 8:48 AM, Bill <cwgordon at carolina.rr.com> wrote:
> I have a 26-3129 disk controller that is acting VERY strangely. I'm using a
> dual 3 1/2 " drive setup.
>
> When plugged in, it causes the drive 0 light to come on, whether or not
> there is a disk in the drive. It will NOT read ANY disks in either drive
> (RS-Dos or NitrOS-9).
>
> I have swapped the 24pin chip for another, and get the same result.
>
> Ideas?
>
> Thanks
>
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