swith on

Hello, I used the LT8312 PFC controller to controlling the switches, but somehow the switches seems not to operating in the bridge, only the diodes. Do anyone know what could be the problem why the switches do not operate? And how do I change the switching frequency to 150 kHz? I think that I...

I have an old CRT tv and when I try to turn on I press the button, but nothing happens. What could be broken? Should I start checking the fuse?