Picture in concave on all sides and blue and red are off
Made a popping noise, shut off and on , and now the picture is blurry and the sides of the picture are concave and the red is off set to the blue. When looking at numbers the red shadows the blue. six years old was wondering if it is worth fixing. Model no. P52937
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Re: picture in concave on all sides and blue and red are...
The shape of the picture indicates that the convergence circuit is not working properly. Generally speaking this occurs without making any sound at all. The popping you heard may have been a capacitor in the power supply. If the power line effected supplied the convergence circuit, repairing the supply should return the set to normal. If not, then the convergence ICs may be faulty. If you can solder, and are confortable working inside the set where potentially dangerous high voltages exist (even when unplugged), you may be able to repeir this yourself.
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HI, this is a failed convergence chip that is located on the convergence board. it will need to be replace ASAP. you can just replace the chip or , you can order a new board.
Replacing the chip can be a rough job if you don't have tech experience. if you are a fluid tech and you can solder and know your way around a circuit board, just replacing the chip will cost less. if you are not an experienced TV tech, i recommend a service call to the nearest TV tech to replace the convergence board.
This is what is known as convergence. a projection tube ussally has three picture tubes.. red green blue. they all have to align. the concave picture indicates complete loss of convergence or convegence power supply. First question on these sets Do you have the convergence option in the customer menu under setup. if you do not this is a indication of the common "FL231 fuse problem" and inexpensive simple repair. I have wrote and artilcle on this under my tips and trick section. If you do have the option then next does autoconvergence work. in you case i would not think it work. under blue and red manual convergence does the crosshairs move. if not then this is indication of convergence power supply board. if they move at all this may indicate a convergence amplifer problem.
your set has indications of several problems. red green and blue. indcate convegence issue. the fact that the picture is concave is a indication of totall loss of covergence power supply. the convegence menu missing idicate loss of some voltages from what know as the flyback.AND SHUTDOWN. indicate further problems. generally when convergence fails ..not always the set wont shut down. it could be a simple issue but further trobleshooting would have to occur to narrow it down.