Picture looks like it is stretched too tall & wide
Model 50UX26B, chassis# AP63. Set was in shutdown at first. Replaced D2375 Horiz Out. Transistor & 4 amp fuse. Now set comes on, good audio but picture is too tall and wide like it resembles a picture with a "zoomed " appearance to it.
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Your Set Is In HV Shutdown,Probrably Caused By A Shorted Flyback Transformer & Horiz Output Transistor,With That Model Rca, These Items Are All On One Separate Module Or Board,Which Can Be Purchased Seperately..
please check all the lights that are in the chassis hitachi puts led in the chassis so that if one of the lights are not working then u know that circuit is bad. now there is 2 things that hit has wroung in the units and that is a 2kv hv cap of the horiz output transistor that burns up and kill the power supply look for a small black or brown fuse it will not have glass on it it is rt behind the reg ic in the center of the chassis it allwas opens up because of the hv cap doonot run the tv without out that cap it will overload the horiz drive and will burn upo the horiz output but u have a very good ctv ther if u fix it will last u a long time and it is a very easy tv to trouble shoot.
I don't know about this particular philips chassis but I've got a phillips tp3281 with a #32d700-7570 chassis with the same problem: apparently common with philips sets. I opened mine up and discovered the burnt capacitor that others have reported, replaced this as recommended with a higher rated one. In many cases this is apparently ALL that is required to fix the prblm (a 50 cent part)unless other components are also damaged which appears to be the case with mine. This repair is about $150 here locally at a shop which I didn't want to put into a relatively old set. Have you opened up your set yet? Do a Google search on your set and you might find that others have had the same problem and a simple fix could be possible. Also you could check the following site as they seem to be quite savvy and responsive with TV repair questions: http://www.tv-forums.com; Hope that helps!
If the set runs at all, your flyback and output transistor are good. If the set shuts down after a few seconds and the sides are wavy, it usually means that the main B+ in your power supply is too high and not regulating properly. I do not know what kind of power supply that model uses, but if has an old-style STR regulator (like the STR30130) then it is probably shorted, and if the set uses a switching power supply then look for an open or leaky electrolytic cap on the primary side. If the power supply is working correctly and the set shuts down, check for an open safety cap (the large 1.6 - 2Kv cap connected to the collector of the horizontal output transistor).