Fri Oct 04 2019

X ray tube

Hi everyone. What does it mean message "Small focus defect" and how it can be solved

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Tue Oct 08 2019Reply from Charlie S.
avatar placemark

In my experience, there is a 90% chance the small focus in the x-ray tube is open.  This means the x-ray tube needs to be replaced.  Less likely causes would be a bad cathode high voltage cable or a faulty small focus circuit.


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Tue Oct 08 2019Reply from First Call Parts
avatar placemark

Typically open filament that would require a new tube but should be verified with troubleshooting other possible causes - D470 board that can be verified by swapping out with one of the others. HT cable or HT tank but most likely the tube is defective


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