Question about RCA D52W20 52" Rear Projection HDTV-Ready Television
Its definitely the power board or the deflection board(high voltage circuit). We should start by looking on the power supply board. It is the one into which the power cord plugs. Look for faulty electrolytic caps(cylindrical objects with X mark at the top) which are bulged, cracked or have holes in them near the X mark. If you can get me an image of the board, I can mark the faulty caps for you.
Posted on Jan 04, 2011
Hello; I am John at J D Electronics in Poland Maine. I have had an RCA model M50WH72S setting dead in my shop for over a year now and is now mine. Your set may be of the same design. If so, The power supply is the likely cause of failure due to bad CHEAP caps. If it is like mine, the Power Supply board is on the left SIDE of the chassis. Any capacitors that have DOMED or SPLIT tops are bad. The set would start intermittently and run for an hour and die. Other times it would not start at all and the LED would flash 5 or 6 times and stop. With NO SUPPORT from Thomson/ RCA, I was on my own. The extended warranty Co said to try the light engine first. I replaced the light engine with no improvement, just the led flashing. I was not going to pay 500 to 700 dollars for other boards to try to fix this piece of JUNK.I have since read several blogs that point to power supply caps as being the problem. I took this piece of junk apart for the last time before I hauled it to the dump. I pulled out the power supply on the left as you face the back of set. I noticed 2 Electrolytic caps had " domed shaped tops ,which is a good sign of failure or overheating. They are 1000 ufd @ 35Volts 105 degree rating. They were both bad along with 2 more on the same board ! They are labeled CP624 and CP647 on the bottom edge of the board inside the "c" shaped heat sink. The other two are above the chopper transformer labeled CP641 @ CP639. replacing these fixed the set. Call DigiKey 800-344-4539 part # 493-1588 are ten for $7.00. Don't spend money on a lamp you don't need. If this looks like yours, you can send it to me to have the 4 caps replaced for $48 to include labor , caps and return 48 state shipping. Call 1st 207 998 5687 John
Posted on Jan 03, 2011
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Posted on Jan 02, 2017
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