I have a Christie lx505 projector and i replaced 3 new lamps and ballast and still won't ignite new lamp - it Works fine with old lamp (apx 2000 hrs)

SOURCE: I replaced lamp of my christie lx505. On start,its on and shows blue screen with Christie logo with seconds but after few second it goes blank and in projector replace lamp led goes blinking orange

Check the bulb ballast board for discolored parts. That board controls the lamp and is the board that the wires from the lamp socket connect to.