Matrix Orbital Corp

Posted: **Sun Jan 18, 2004 11:45 am**

How do I connect an AT keyboard to this display?
I've looked on the back and there appears to be four sets of connectors - 9-pin Serial, 4-pin Power, 2-pin (GPO?), 2-pin ???. The manual says nothing about connecting the keyboard. Plenty about how to code to it, but nothing about connections...

Any ideas?

Posted: **Thu Jan 22, 2004 11:35 am**

The LK404-AT uses an AT keyboard and has an AT header on the back.

Posted: **Thu Jan 22, 2004 4:50 pm**

Sure enough.
7 solder points...
I did a quick search and it appears that no one sells those AT connectors any more. Time to recycle an old motherboard!

Thanks!

Posted: **Fri Jan 23, 2004 1:18 am**

You mean old keyboard of course!

Posted: **Fri Jan 23, 2004 7:20 pm**

Not exactly...
Desolder (rather, DRILL!) an old AT adapter out of an old motherboard.
Then, take a PS/2-AT adapter and fit it to my $30 17-key numeric keypad.

The reasoning behind this -
It's darn hard to have my VB app stay in focus to take keypresses! Anything going through the MO display will go directly to my app! Woo Hoo! I'll be able to run Netmeeting Remote Desktop Sharing. Finally!

Edit - The old motherboard was a PC-Chips one. Sorry to frighten you all...

Matrix Orbital Corp

LK404-AT(Rev 1.10) Keyboard Connection

LK404-AT(Rev 1.10) Keyboard Connection