I have a Panasonic TX-56P800H 142cm rear projection tv. I bought it new 3 years ago and in winter it has always had a problem displaying an image first thing in the moring when its cold i guess?? but I could fix it with a slap on the top of the screen. Now three years on I'm abusing the poor televsion and it struggles to flash on for me.
Does anyone think that it needs a new bulb? Please help?
I think its not necessary to replace the bulb, based on what you have said that the T.V will work when you slap it on the top of the screen. the problem i guess is there is cold solder or loss connection on the CRT board or somewhere in the video or chroma section...
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I think that the cause of the problem is that your power supply is already weak, try to check the main power supply but be sure to unplug your tv. try to observe if their is a leaky capacitor the one that has a wet mark in the bottom the wet mark is the oil of the capacitor try to replace it specially the 50 volts 10microfarad.
Hi, I'm afraid, it is problem of optical block unit (light engine) that produce picture by 3 lcds inbuilt, the blue lcd and its related uv filters become defective and causing this kind of blue hue on screen. Complete optical unit block (light engine) will be replaced by qualified tech to get tv fixed, light engine is costly part so ask an estimate before sending tv in. Thanks.
The problem is usually he 2 convergence i.c.s.
Breaking down under extreme heat. My fix after replacing these
I.c.s. is to mount a computer fan on the opposite side of the heatsinks and directing a slow and moderate airflow around the i.c.s.
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).
hi rouge. my name is mike wilson. i have a panasonic 50 in that has the same problem as you had on your tv. the screen got halfway dark today. did you ever get yours fixed, if so, would you mind telling me what the problem was? my problem is listed (by mistake as a 53 in) on 04/04/07. thanks in advance