I have a 42 inch Sanyo LCD TV it comes on for a few seconds and you can see the backlight is on but after about 3 seconds it makes a clicking noise like the TV is turning on or off. Then the back light goes off but the green power light stays on. I have changed both backlight inverters but it still does the same thing. I want to change the power supply next but don't want to waste anymore money on it if it won't fix it. Has anyone else had this problem?