Ok as these things become harder and harder to find we have to get creative. I used to do this repair years ago on high voltage "triplers" in color televisions. Obtain a bottle of MG super corona dope, see picture. Remove fly back from Chassis and clean thoroughly. If you look close you can see where the crack and leak is in the flyback. Coat a layer on this crack and cure in an oven(that you don't cook with) at 180 degrees(see data sheet) for 1 hour. Layer and repeat. I use about 5 layers as its 4100 Volts/mil. So this is a 6 hour project, but what you going to do when your Chinese flyback fails and there isn't anymore? Follow cure times and reinstall your flyback. Use caution when restarting monitor!. Here is a pic of my Wei Ya repaired. Not a peep out of the Flyback!
