Hi recently bought Colchester 3000 L short bed Lathe Plugged in turned on Program displayed could not go to anything else x z key pad flashing alternately batt lift displayed. Shut down replaced batteries Then turned on and got 910 parity low Tried to reset then showed 911 parity high error Screen shows 600. 06 then goes to 910 alarm Tried turn ing on with delete Cancel buttons pressed just comes up with alarm error again can't get past error code display Bought secondhand main board installed,it but still same error . Anyone got any solution