TI-99/4A Console Tester originally designed by Geoff Trott is back and ready for purchase.

Note: Picture shown is of the prototype board. You will not get the prototype.

This has updated code to correct a few errors. This tester is Version 2.0!

The TI-99/4A Console Tester is a game-changer for anyone with a TI-99/4A system. Designed to plug into the side of your console, this handy unit runs an isolated diagnostic program stored on an EPROM, streamlining the process of identifying and fixing faults in your TI-99/4A.

With its comprehensive testing capabilities, this console tester can diagnose issues with key components including RAM, ROMs, GROMs, and the VDP, among other vital parts. Say goodbye to the frustration of spending countless hours diagnosing a failed console—the TI-99/4A Console Tester saves you time and effort by providing precise diagnostics quickly and efficiently.

Make console troubleshooting a breeze with the TI-99/4A Console Tester and get back to enjoying your classic games and computing in no time!

Download the manual HERE