I have a panasonic tx-80v02a, getting a bit old now, bought in Feb 2003. When I first turn on the TV the picture quality is poor with lines before coming good after about 30mins. Is there anything I can do?
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Re: Panasonic - Poor Picture Quality
There can possibly one problem. If you check on tube bords. There is a white plug that plugs into the tube. If you carefuly open that white plug, there is 2 silver contact point, called the spark. clean it with benine., but it must be clean. If you have to use small peace of sand paper ok. But afther that use clear Q-Tex (for Nails) and cover points. Let it dry and set will be ok.
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If the sound stays on try just going up and giving it a "whack" on the side, a pretty good one. If the picture springs back to life it is likely a poor solder joint. Those sets and many others are prone to cold solder around the vertical IC due to the heating/cooling cycles and high temperatures inside a TV. If you hit it and you get a picture back it likely just needs to be re-soldered.
Yes it can be repaired. No Panasonic won't repair it for free as it is well beyond the warranty period. This is a normal wear and tear type of problem and is easily fixed. There should not be any parts required, most likely just a bunch of poor connections resoldered.
Easy fix. I had the same green dot problem and I removed the front panel (no screws). In the center is a panel that has two screws. Remove them and pull the cover off. There you will find the projection bulb. Do not clean the bulb but instead the base. Use a damp cloth to wipe the dust off the black disk (the base of the projection bulb housing). Apparently the dust through static electricity may cause enough magnetism to distort your picture. Hope this helps.
It sounds like you may have a couple of defective convergence IC's, and maybe a couple of resistors. A fairly easy repair. Since you already have a warranty on the set, I would have it repaired and let the company know you haven't been too pleased with the picture quality all along. They may be able to tune it up a bit after repairing it to really make it shine for you. Panasonic usually makes pretty good sets, you could do a lot worse with some of the other brands out there.