Question about RCA P52930BL 52" Rear Projection Television
RCA Projection TV, Model # P46770CK; Service # P46770CKLG1. We were in the middle of watching tv and the screen just went black. There is still sound, but no picture so I'm guessing it's the picture lamp. The TV is 13 years old and we have never had any problems with it and I don't want to spend a lot of money fixing it, nor do I want to purchase a new tv right after all the money I just spent during the holidays. If it sounds like the picture lamp do you know if it's easy to fix? My husband loves to fix electronics, do you know where I would purchase a part for it? Is it worth fixing? Any help would be appreciated. Thanks, Michele
Where us the r4703 resistor located at is there a schematic for it somewhere i can see?
Posted on Jun 30, 2008
A clue to what is wrong is by looking from the back (taking the back off) and looking to see if the three picture tubes have any yellow glow at the bottom of them where the three identical boards are located on each tube.. If you have no glow there you possibly have a resistor R4703 open. It is a 3.3 ohm resistor and feeds the voltage to the filaments in each tube where the glow is suppose to be. If you do have the glow the problem could be much more complicated. Another to check is to see if the menu comes up on the screen. You could possibly be in the wrong input mode, Check your input mode with the input button on the remote The number R4703 is a location number to identify where the resistor is. This is all I can tell you that would not require much more complicated procedures requiring a tv repairman to look at it. If you have an ohm meter you can check R4703 but it must be checked out of circuit. (or at least one leg loose) Hope this helps
Posted on Jan 04, 2008
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Posted on Jan 02, 2017
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