PC KEYBOARD WIRING SCHEMATIC
I am trying to wire and old 1920's typewriter to a modern PS/2
connection, AT computer keyboard. I plan to basically remove the control IC from an old keyboard, and wire each keyswitch connection to a momentary button, which is hooked to mechanical levers in the typewriter. Does anyone have a wiring diagram of the internal keyswitches in a standard PC keyboard. I havent been able to fiond one online, all i keep getting is PS/2 pinouts, or the pinouts for the IC. thanks in advance, -Rich |
PC KEYBOARD WIRING SCHEMATIC
schreef in bericht ... I am trying to wire and old 1920's typewriter to a modern PS/2 connection, AT computer keyboard. I plan to basically remove the control IC from an old keyboard, and wire each keyswitch connection to a momentary button, which is hooked to mechanical levers in the typewriter. Does anyone have a wiring diagram of the internal keyswitches in a standard PC keyboard. I havent been able to fiond one online, all i keep getting is PS/2 pinouts, or the pinouts for the IC. thanks in advance, -Rich Rich, The keyboard interface to the PC has been defined. The inner workings of the keyboard is up to the manufacturer. Most of the old keyboards I opened contained an Intel 8048 micro with a 6MHz Xtal and some small amount of other electronics. Keyswitches are usually placed in some matrix. Best thing you can do is find an old AT-keyboard and wire the switches on your typewriter according to the matrix. Then take over the keyboard electronics as a whole. petrus --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.547 / Virus Database: 340 - Release Date: 2-12-2003 |
PC KEYBOARD WIRING SCHEMATIC
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