[Coco] 26-3022 disk interface question

[Bob Devries]

It is my belief that this controller should power up with the banner:
DISK EXTENDED COLOR BASIC 1.x

If it does not, my first step would be to clean the fingers where they 
fit into the Coco with a PENCIL eraser. Failing that, open the diusk 
controller and ensure that all the chips which are in sockets are 
properly seated, and that the ROM is the correct one. AFAIK it should be 
a 24-pinROM, *not* an EPROM, although if it has been modified, it *may* 
have a 2764 or 27128 type EPROM.

Good luck.

Regards, Bob Devries
Dalby, QLD, Australia


On 11/06/2015 10:14 AM, AQ Cerutti wrote:
> Hi,
> I recently purchased a color computer disk system with a 26-3022 disk
> interface and a mini-disk. I purchased this not realizing that it would not
> work with my Coco 2 without a multi-pak expansion which I do not have as it
> needs 12v of external power.
>
> Examining the package after I received it, I realized that the disk
> interface had been opened. The screw under the label is exposed. Everything
> inside the interface looks good but I don't have the means to test the
> chips and when I plugged the interface into my Coco 2 and powered it on, I
> did not see anything different on the screen.
>
> My question is this:
> Even if the 26-3022 needs 12v of power, with the interface in the computer
> should I still be seeing the extended basic screen and licensed from
> Microsoft information? I'm not which leads me to believe that there may be
> something wrong with the interface.
>
> Can anyone confirm what I should be seeing with a 26-3022 interface in a
> Coco 2?
>
> Thanks for your help!
>