Was watching tv and it just turned off
47 inch Panasonic flat screen, turned itself off and will not turn back on. I have to unplug and plug it back in, at that it will turn on but only for about 20 seconds. In order to get it to turn on again, I have to unplug and repeat, but it will not stay on.
My T.V. will only turn on for about 20 seconds. I have to plug and unplug the T.V.
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Re: tv turned off
When the tv shuts done does the power light blink? If so what number does it blink? That will tell me which circuit your problem is in. Notice the number of blinks then let me know. Also what is the model number of your set.
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Yes, I did try to use the power button on the TV itself. That did not work too. Yes, there is blinking red light too. I searched through several sights and found out that it is an issue with the IC 4511. I could not find a place to buy the chip.
By the way, our local TV dealer asked for $400 to fix this issue. I had
already spent $400 on a different repair on this TV, 6 months ago.
Any suggestion/advice would be very helpful. Thank you again for your response.
Unplug the three red-blue-green plugs nest to the convergence amps. If the unit powers up and stays on the picture will look bad but will confirm that the convergence amps have failed...
Replacing the amps and one or more resistors in the yoke return will restore the set to normal operation..
Use only Sanyo original Ics..
If your unit was blowing fuses you must have had an overload somewhere. Your post is not clear. Does your unit run ten minutes after unplugging and replugging it? If it does then there is still a partial short in it somewhere which causes it to shut down for protection. It could be anywhere. Some detail on what happened prior to the fuse blowing would be helpful for diagnosis. You do not sound like you would have the expertise to troubleshoot this unit. I doubt there could be much wrong with it and the cost should be minimal. Find a reputable repair shop to handle the repair. Good luck.
Camaroguy: This exact problem happened to us about 8 months ago. A board had to be replaced at a cost of $500. Yesterday, the convergence has gone on the set. You get a blue and yellow shadow on the picture. From what I have been reading, this has happened on a few TVs and it will cost another $500 or so. We refuse to pour more money down the drain so we just went out and bought a new plasma (RCA) for half what it cost us for the Panasonic 4 years ago. We have never had a problem with RCA in the past (two tvs for 20 years a piece).