Question about Philips Magnavox 51MP392H Rear Projection Television
This is a CRT projection tv - one in which the image is generated by 3 small tubes. There is nothing you can clean on it apart the dust that gets in every tv. The problem of your tv is caused by a badly done adjustment of the voltage on the accelerating and focus grills of the cathode tubes. It's actually a very simple problem to fix - all you need to do is to adjust the right potentiometer from the flyback transformer a little to the left to lower the voltage on the accelerating grill and a little to the right to raise it on the focus one - a 5 minute job. The problem is the fact that on this transformer there are 25,000 volts that arc very easily if you go near it blindly with any metal object; and that arc can easily kill a person with heart problems. If you haven't done this before and you have no idea how to adjust it then just call someone who does.
Posted on Nov 12, 2010
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Posted on Jan 02, 2017
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