Quote Originally Posted by sagreen View Post
Ray,

See attached picture... I haven't powered up my mill for a couple months, and today when I powered it up the PDB screen only shows black boxes on the top line. The PDB works fine, but the screen is messed up. Any ideas?

Scott...

Attachment 311068
Scott,

First thing I'd suggest is un-plug and re-plug the 6-pin connector. Your shop is pretty open to the elements, so you may have some corrosion on the connector terminals. If the MCU on your board is socketed (I believe it should be....), un-plug and re-plug that as well (with the power OFF!). Let me know what happens, and we'll go from there. If the LCD has failed, it will be the first one!

Regards,
Ray L.