These types of questions are better directed at FixItFrank on YouTube. He does videos of projector repairs and gets into the actual guts of many different models.
Most people online, myself included, don't have a clue how these things are put together internally and certainly don't have wiring diagrams and a good idea of the specifics of how a particular model is wired. FixItFrank does have a good idea and is the best resource I've seen online for this stuff.