Q: Why does my EHXXX-XMXXX / EVXXX-XMXXX display show “OK” or “AOK”?

A: This indicates that the display is either not receiving any data from the driver, or something is keeping the data from being recognized.

1. This will happen when there is no communication between the MICRO COMM® driver and the display. Follow the troubleshooting steps in section 1.b. to track down the problem.