Have a Mattsurra 1800h mill with a Fanuc 11M.
Came in the morning and noticed certain buttons did not work on keyboard. (7,8,9, cancel, cursor, page, B, +,....)
On this machine there are two 3 segment leds that display tool in spindle and tool in changer. These displays now alternate flash between
all zeros and the correct tool number. Those displays are machine specific.
Home position lights will not come on either but machine shows its home in position page.
Machine will run a program and tool change just fine. Just cant enter or maneuver via certain keys on keypad.
So, seeing how the ribbon cable and wires for display all went to the I/O board in the display panel, I replaced it for $3400 to realize that wasn't the issue. This was after talking to Mattsuura dealer and Fanuc rep.
So, I took the keypad out and checked all the keys for function with a meter and it checks good.

Has anyone seen this? Any suggestions?