My philips hdtv's red tube just shot down,, i opened it and it still not totally shot down, but it light so dimmed that it turn look like its busted,, what do you think is the problem? is it have to be replaced?
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Problem is going to be in the Green and Blue Tube ,you need to change the Coolant Fuild out and out in New,Philips is well known for having Bad Coolant fuild in the G/B Tubes.
With Back Off and TV on Look down inside of each Tube you should be able to see a Clear picture, in each Tube, If you do Not then you need to change out the coolant fuild.
You also have a Screen/Focus Control Block, it controls the Screen Drive and Focus to Each Tube R/G/B 3 controls on top and 3 below them. Top 3 should be for Focuse and Bottom 3 Screen Drive /Brightness to each Tube.
Now in order to aline for Correct Color you will need to adjust all 3 Tubes , Turn Color OFF in Menu then aline the Tubes untill you have a Black and white Picture ,Then go back to menu and turn Color on.
Sorry to say, but that's usually the sign of a bad picture tube. One of the elements inside the tube shorts and you see the picture you describe, and the set shuts down due to high voltages getting to places it shouldn't. There's no solution except picture tube replacement, and that is uneconomical. You're better off replacing the TV when the tube goes bad.
Might be a bad tube or flyback transformer. Best thing to do is take the back off, turn down the lights, and stand behind it while someone turns it on. you may see one of the tubes arching or the flyback itself. Let me know if this helps or if you need more info.
It sound like a bad tube there are three tubes red green and blue.
i suspect the blue tube is bad. tubes cost 160.00 plus labor 450.total . sometimes the tubes
can be fixed or the tv tech can adjust the screen voltage on the tube.
Sony Picture tube recall ·http://esupport.sony.com/perl/news-item.pl?news_id=24 ·Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700.
Sounds like you have two differant problems. A red drive or red picture tube is bad and the conbvergence IC's are bad. To test the red drive disconnect the green picture tube socket BUT MAKE SURE THE SET IS UNPLUGGED!!Then remove the red socket and move over to the green tube. Then turn on the set. If you get the same out of the green then you have a drive problem that needs to be trouble shot for a bad componet. If you do get a picture with the red connected to the green then the red tube is shot. If you know how to read a schematic, get one and then you should have no problem troubleshooting the red drive and the convergence problem. If you dont then there is no easy or quick fix as this is a solid state set and there are no user replaceable parts inside this.,. Your going to need, for safetys sake, call in a trained tech to assist you with this repair