I have a Philips 55” 55PW9363 (DPTV335) rear projection TV. When I turn the TV on it starts tripping. It does this just as the picture starts to come up. What does get displayed is mostly blue in color. My first thought was it might be a power supply or the deflection board or maybe even a tube. I have a fair amount of electronic experience, just not in troubleshooting TV’s. I am finding it hard to test voltages since I can not get the TV to stay on. Can you please provide some suggestions that would help isolate the problem?
SOURCE: Philips 50P8341 50 in. Rear Projection Television most of the color is red
Usually if you remove the speaker grill in front there is a convergence panel that can be carefully removed. If you look inside you should see a small rectangular block with six controls. They are labelled focus and screen, and red, blue and green. Adjust only the screen controls very carefully and slowly. I would recommend reducing the red slightly brfore raising the green and then blue until the picture looks acceptable. Be sure to center the on screen controls before starting.
SOURCE: Philips 46PP9302 46 in. Rear projection -
The power supply section is not working.
Common possibilities are:
- Convergences amps have failed overloading the supply
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed
short overloading the supply. They dry
out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.
In short, you need a experianced tech to troubleshoot this.
SOURCE: Beeping
I had a repair guy check mine out for the same problem, he said it was the h/v generator , put a new one in myself and it works great. www.partstore.com 75 bucks ,, hope this helps
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