Monitor Flyback Transformer

This is the internal view of a 17 " monitor flyback transformer without the epoxy . It consist of 3 film type capacitor and a bleeder resistor. The 2 small capacitors at the right side of the internal view is for the dynamic focus purposes. The value is around 0.5 to 1 nanofarad. If this capacitance value changed it will affect the focus which mean no matter how hard you adjust the focus thru the two focus knob at the flyback you will never get a sharp picture. The bleeder resistor have two functions-first is to discharge the internal capacitor and the second functions is to act as a complete circuit for feedback purposes. Again it depends on the design of the flyback. Some flyback do not have this resistor. If you refurbish this flyback and accidentally removed the resistor connection, it will cause the monitor to have high voltage shutdown. Next is the internal capacitor which is located at the top left of the photo. If this capacitor have an open reading it will cause either shutdown or have tic-tic sound. The capacitance value is somewhere between 2.7nf to 6nf and again it depends on the manufacturer of the flyback.