[Coco] Looking for working Coco 3 keyboard

[Stephen H. Fischer]

Any CoCo Keyboard can be repaired with tons of work.

Needed, Wire wrap wire, some way to connect to the keyboard input and the CoCo Keyboard maze document.

1. Remove the unusable mylar completely.
2. Wire each row together.
3. Wire each column together.
4. Build some way to connect to the row and column to the CoCo.

I built a keyboard using this method ~ 1980 for my FLEX system using a SIM-1 and a largely ignored IC that outputs the key presses on a serial line which I fed into a 6551. After debouncing it worked great. All the keys were held in place from above, I have not looked to see if the CoCo keys are held this way.

If not then a predrilled PC board would be needed.

SHF


----- Original Message ----- 
From: "Ron Klein" <ron at kdomain.org>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Sunday, July 16, 2017 7:14 PM
Subject: Re: [Coco] Looking for working Coco 3 keyboard


> Mylar happened.  It's not just a trace issue, the plastic must have been
> brittle and found it split when I opened it.
> 
> 
> 
> On Sun, Jul 16, 2017 at 7:57 PM, Rietveld Rietveld <rietveldh at hotmail.com>
> wrote:
> 
>> What happened
>>
>> Sent from my BlackBerry Passport Red Edition.
>>   Original Message
>> From: Ron Klein
>> Sent: Sunday, July 16, 2017 8:56 PM
>> To: CoCoList for Color Computer Enthusiasts
>> Reply To: CoCoList for Color Computer Enthusiasts
>> Subject: [Coco] Looking for working Coco 3 keyboard
>>
>>
>> Argh!
>>
>> Another Coco 3 keyboard bites the dust.
>>
>> If there's anyone out there with a working Coco 3 keyboard they would like
>> to sell, please let me know.
>>
>> Thank you
>>
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> 
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