Chosen Solution

It’s a 50inch poineer sd-533hd5 projection, I turn on main power, then turn on standby, I hear something click behind TV, but it doesn’t turn on.

rglieb, take of the back and check the power supply. YOu should see two? 4A 125Vfuses there make sure that those are okay. I have read about the trouble with the STK392-110 convergence correction circuit IC. Anyhow this could turn into a long project depending on your knowledge and skill level. Whatever you do. Be careful around those beasts….they got lots of oomph and you would not want to hurt yourself or others. Here is the Service Manual Good Luck.