Emgee, When I power up the machine, the main screen is visible and I can cycle through the options. E-Stop relay functions properly. X and Y axis provide location readouts, though when I manually turn the Z axis lead screw and move the carriage the machine does not register the changes on the screen...

Greetings, Let me preface that a special place in hell is reserved for those who store CNC machines in barns. I am repairing a Orac '84 (based upon component mfg dates of May '84 or earlier) and have power through power supplies, spindle drive, TV monitor, PC 1601 and PC16 90. I have power coming in...