I purchased this 50" plasma for $45, knowing it had issues. The owner said sometimes the picture would go out. I cleaned the dust out, and used it for over a month before the problem appeared. It seemed to happen after warm-up. It took a while to reappear after I removed the back of the set.I thought I had narrowed it down to a couple of power resistors on the main power supply with my cold spray and hair dryer. I replaced the resistors, and touched up the solder joints in the general area. All was good for a few days, then the problem came back. But now it can happen almost anytime, and seems worse when first turned on. The sound is always fine, no popping noises or burned smells. The screen seems on, as in has a blank raster, just no picture. It often starts with a horizontal flicker or lines interrupting the picture. I also noticed on dark images, alternating green and purple color bars overlaying the picture. I will include a couple of sample videos I took of both issues. When the picture is blank, I still get all the correct voltages on the PS outputs, but do notice a change in the Vsus voltage readings from picture to no picture. Any ideas where to go next? It is so intermittent it is a pain to duplicate. It is on a stand in the living room with the back off so I can try to catch it when it blanks out.
Norm
Norm
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