tiggerlasv at aim.com wrote: The keyboard doesn't use a MMJ connector. It's a regular RJ connector. Try replacing that cable first, it has RJ connectors on both ends for the LK201 models. Check to see if the keyboard has power by hitting the shift-lock key. The shift-lock light should go on. If it does go on, try the setup key. If you get a setup screen, then the keyboard is probably ok, and you actually have a communication problem between the terminal and the computer. A common problem seems to be corrosion on the connectors inside the keyboard. This is the connectors use to attach the plastic circuit board to the main logic board. They are tightly held, and you may need to un-bend the connector from the circuit board. Putting it back together can also be tricky, so do it as a last resort.