My 45" RCA projection TV is 15 years old. It had a dim picture but was working fine until two weeks ago when it will not start. There is a click when I push the power button but there is no picture and no sound. Can you tell me how to repair it? I am very good with electronics repair but don't have TV repair experience. I have a multimeter and soldering tools and can do the repair myself if someone can tell me what to replace. Also, is the dim picture repairable? Please, provide directions. Many thanks in advance.