Saturday, August 20, 2011

keyboard upgraded

The keyboard on John Smallberries needed to be cleaned. In fact, it was so gunked up with keyboard plaque the left and right Shift keys were jamming. So, I gave it a complete bath. Hmmm. While apart, I could upgrade it...

I put 6 small red LEDs under the keys. Used some of the spare small dome LEDs. Put two in series with a 39 ohm resistor. Repeated two more times. Punched two new holes in the circuit board with the existing status LEDs so to tap into the 5 volt supply from the computer. Fished the wires along the various channels. It took a lot of fiddling to get it reassembled.



It works. It's not terribly bright. It's more atmospheric then anything else...

No comments: