How to Repair Computer Keyboard Interfaces

Need to repair a computer keyboard interface? Here is a collection of free take apart instructions, disassembly pictures, upgrade and repair manuals, as well as do-it-yourself (DIY) tips and tricks for computer keyboard interfaces.

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Apple Desktop BUS - ADB	Repairing the ADB and fixing the fuse.
IBM AT/PC	How to attach an external IBM-AT/PC keyboard to a Palm III PDA (in German).
SUN Keyboard	Mouse and keyboard schematics for 15 PIN DSUB FEMALE (SUN3s and older) and 8 PIN MINI-DIN FEMALE (3/80 and Sparcs) connectors.
SUN Type 4, 5 Keyboard	RS232 (DB9) to SUN keyboard connector and voltage converter, includes schematics.
SUN Type 5 Keyboard	How to attach a USB connection as a replacement for AT or PS/2.
SUN Type 5 Keyboard	SUN keyboard to PC serial port adapter: Many people have dreamed having their SUN Type 5 keyboard attached to their Linux box up to now. And with this adapter, it is finally possible. Because the standard SUN keyboards use TTL RS232 at 1200 bps to talk to the SUNs, it's very easy to make them talk to any non-SUN computer by converting this to true RS232. All what you need is a MAX232 chip that'll take care about the correct voltage levels, and also some chip to invert the signals, since the MAX232 inverts them as well, and we don't need this. This all easily fits into a 25-pin serial connector.
miscellaneous keyboards	Schematics for keyboard connectors: DIN (5 pins), PS/2 (6 pins), RJ-11 (aka phone plug, Westernstecker) (in German).
miscellaneous keyboards	PS/2 mouse and keyboard fuse repair.
N.N.	Modifying a Logitech PS/2-Cordless Keyboard/Mouse to USB.
Trust XpertTouch KB-2900 WireLess Media Center Keyboard	Improve the range of your wireless keyboard or mouse. How to use a 2.4GHz WLAN antenna to extend the range of a cordless keyboard.