Texas Instruments

TI-99/4A

COMPUTER CONSOLE

ENHANCEMENT - Alpha Lock no longer needs to bein unlockposition for joystick up to work.

CLEANING - Console disassembled completely.Cartridge Port connectorremoved from motherboard and cleaned completely. Expansion port edge connector cleaned.

TESTING - Console tested completely using Texas Instruments supplied testing software.Rams,Roms,Groms and 6810 chips tested.Joystick ports tested.Keyboard tested and any keys with bounce cleaned until they bounced no more.Cassette interface tested. For better explanation of alpha-lock enhancement and cleaning procedures go to: http://www.mainbyte.com

Brushed aluminum covering does havesome small scratches and dents.

Please note left side image of console - a hole was drilled and then fitted with a plastic plug to fill it- this does not effect operation of computer in any way.

Below are some screenshots of the test procedures

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I have been a TI\'er since Texas Instruments bailed out of the home computer market in 1983.I have a large inventory of software in all formats - cartridge, diskette and cassette. I have a large inventory of hardware items as well. If there is something specific your are looking for relating to a Texas Instruments TI-99/4A computer - EMAIL ME!, chances are better than good that I have it and might be willing to put it up for sale.

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