How can I fix my sony video projector vpl-aw15?

I'm not getting any picture. It's a blank screen. In the upper left corner it reads component with a yellow x and arrow through a box. In the lower right corner of the 92in screen. It's read frequency out of range. I had this projector for 2 yrs now. I sent it back to sony yr and a half ago. For the same reason. They said it was the lamp. So we replace the lamp. It still did the same thing later on. So sony said that I needed a cable booster amp for my projector. They said that I have too many Tvs in my 2 story house. So I got that too. Now my projector doesn't show any picture. It's a blue screen that blank on and off. I don't know what to do now but trash it. Also it's mounted from a pole to the ceiling. Please help me!!!!!