Well I hope I can post this here but if anyone can help me that would be great. I own a Pioneer SD-P4571 Projection Big Sceen that was given to my wife and I by her father and the Darn thing keeps turning off after a while or even in the beginning. I believe it is a power problem but I dont know. It will stay on after a while and stay on for a long time. I have tried looking for the Service Manual but no success. Can anyone help me. If I have to resolder components in the powere supply or other areas I will to make sure everything is on tight on the boards. Thanks in advance.