I have a 1994 4020 and this morning while cold starting the machine i got a "Z axis fault number #30" so i switch the Z axis controller board with the Y axis board and the fault moved to Y. Ive had problems with the survey on the Z axis about a year ago, large numbers and out of range, so i tried to clear them but could not tried to write over them and that did not work, so i was wondering if it's not the board but the EPROM's? Any help would be greatly appreciated.
↧