[Coco] CoCo keyboard connector

[Stephen H. Fischer]

Hi,

It may take a little work, as Maltedmedia still is being organized.

ftp://maltedmedia.com/coco/MANUALS/TANDY/HARDWARE/

is the starting point to look.

ftp://maltedmedia.com/coco/MANUALS/TANDY/HARDWARE/TANDY_HW/COCO/Color%20Computer%203%20Service%20Manual%20(19xx)(Tandy)(pdf).7z

That is the CoCo 3 one but I did not find the CoCo 2 one.

I think that they are also somewhere else on the Web.

SHF


----- Original Message ----- 
From: "Bruce W. Calkins" <brucewcalkins at charter.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Friday, March 02, 2012 4:26 PM
Subject: Re: [Coco] CoCo keyboard connector


>
>
> ----- Original Message ----- 
>
> From: "Allen Huffman"
>
>> Hey, is there a tech manual online somewhere? I'm interested in how the 
>> CoCo keyboard connector works. I know it went to a thin mylar connector 
>> for the CoCo 3, but wasn't it a ribbon cable for the CoCo 1?
>>
>> Are the CoCo keys just switches, that open/close contacts and it's read 
>> as an X by Y matrix of switches?
>> -
>> Allen Huffman -
>
>
>
>
>
> The thin Mylar connector came out with the "283" "F" board CoCo 1 and 
> continued through the 2 and 3.  The keyboard was a 7 by 8 matrix of SPST 
> momentary contact switches.  I rebuilt two "real" keyboards for my "E" 
> board CoCo 1.  I actually wore out the first.
>
>
>
> Bruce W.