Question about RCA HD52W140 52" Rear Projection Television
It wouldnt turn on and after pressing the button 3 times i went to the back and smelled smoke and then sure enough saw smoke so i unplugged it and took off the back and on (not sure the name ;some big horizontal circuit board) saw in spot w/8 there was a little something burnt to a crisp. i broke it off gently leaving the 2 leads incase i need to sloder something back. is this a common issue and does anyone no what part this is and do u think if i replace this part i will be able to use the tv again. tv hasnt powered up since a thunder storm months ago if that helps. thanks jim
Need to make sure you use hv rtv on the leads goin into the splitter or you will leak hv from the splitter. this will cause lots of proplems. also there are a few faulty new splitters.
Need to check to make sure you have the correct b+ goin to flyback if its too high then you will have to much hv. this may cause a shutdown.
r14705 and splitter usually fixes most, with rtv on the base of all wires.
Posted on Apr 08, 2008
If one of the tubes is shorted the splitter and resistor will burn out again.
Posted on Mar 26, 2008
From your description ..actually this is a common problem and no simpley replacing the resistor will not fix it. this chasis has a problem with what is called the high voltage splitter.. there was a number of these made with a defective splitter. RCA HAS ISSUED a service bulliteen for certain models and serial numbers. the board and the splitter is generally replaced. (I just worked on one of these 2 days ago and got and order in for the parts) ......just reread the tech bulliteen.. the spitter which develops a crack is rca part number 258512 the resistor or the part that burnt is resistor a common 27k 1/2 watt 10% carbon resistor
Posted on Feb 10, 2008
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