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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Hodgkinson on January 08, 2008, 09:09:50 PM

Title: Looking for a A1200 keyboard ribbon socket
Post by: Hodgkinson on January 08, 2008, 09:09:50 PM

Hi there,
Does anyone have a faulty A1200 mainboard with a keyboard ribbon connector that can be unsoldered?

Im tinkering with the idea of making a breakout PCB for the keyboard in my A1200 in order to allow key presses to be controlled electronicially.

Thanks,
Hodgkinson.

Title: Re: Looking for a A1200 keyboard ribbon socket
Post by: Castellen on January 08, 2008, 09:50:33 PM

If you can't find an appropriate 1.27mm FPC connector, another way to do something like this, without altering the computer, is to use a 44 way PLCC socket upside-down on top of the keyboard microcontroller.  You can then track out the required columns and rows to 4066 bilateral switches or whatever to do the job of "pressing" a key.

Title: Re: Looking for a A1200 keyboard ribbon socket
Post by: Hodgkinson on January 08, 2008, 10:50:52 PM

That’s an interesting idea. The only snag is that I've got all the RF shield and HDD caddy in place, so what im thinking of is a long PCB, extending down through the RF shield to the connector (Connecting in the same way as the adaptors for PC keyboards…), with terminal blocks situated just about the RF shield for connections to external devices...and the ribbon connector soldered on the PCB at the top.

Hodgkinson.