I have a Barcrest Rocky Horror (MPU4) which has developed a VFD fault.
It displays random garbage on the display, sometime its totally blank.
I've checked all connections from the display back to the MPU4 and are all okay. Also had a prod around to see if any of the other cables would correct the display when moved, looking for a bad connection, but could not find anything.
Occasionally the display will show correctly, There seems to be no pattern to when it is blank / correct / garbage
Ant advice on what I can try would be appreciated