X-ray Kodak 2000 fix error E13

Dental X-ray Kodak 2000, sometimes has a problem with the internal voltage divider of kV for feedback in the HV tank. Interrupts the bottom resistor of the high voltage divider.

The easy and correct solution is new tube tank. 
less correct solution is disassembly of the tube and soldering of the resistor.

Extremal Solition this problem is here: https://www.ebme.co.uk/forums/ubbthreads.php/ubb/printthread/Board/2/main/9999/type/thread

This circuit has not been tested by my. Everything you do, you do at your own risk! I am not responsible for any damage!