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My RCA 52'' projection tv has no sound or picture

Hi...our tv barely lasted 2 years, and we had a repairman tell us that it has a bad High Voltage Deflection Circuit is bad....quoted over $600 to repair!!! How muc would it cost to replace this ourselves, and where would we buy it? Thanks!

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The board is probably 200-300 dollars. You may be able to get from some distributer like http://www.ued.net/website/index.html

Posted on Jan 23, 2009

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My rca tv has a distorted picture and a really high pitched buzzing sound


Problem is in High voltage circuit and likely either the high voltage transformer or a connection right under or around it.
6_17_2012_3_19_04_am.jpg

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I have a 52" RCA TV Model 52w1913yx1, when I turn it on the green LED will flash and then go out. There is no High Voltage and no picture.


I suspect High voltage splitter is bad, can you confirm chassis number?

It is on label on back with model number, something like CTC or PTK 169 OR 171.

IF ONE of these chassis or similar I can tell you how to prove block is bad and where to find and replace--most of these sets also have year they were made on the back.

I am here to help you for free.

SD TECH

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1 Answer

Tv went off and won't come back on.


the arcing sound is some kind of high voltage leak, which will shut down the tv. pull the speaker grill off and the access board, look at the 3 picture tubes, turn the set on you will see where the leak is, it's usually the high voltage splitter, which has a high voltage wire going into it and 3 high voltage wires coming out going to the picture tubes, if it arcs from the splitter you need to change it, if it arcs from one of the picture tube wires you need to pull the tube out and fix the high voltage leak, and possibly a cooling fluid leak caused it, not an easy reapir, you probably need a repairman.

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1 Answer

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2 THINGS THAT USUALLY CAUSE THIS PROBLEM IS
1) THERE IS AN ARC FROM ONE OF THE PICTURE TUBE ANODE LEADS--15.00-- THE TUBES ARE STILL GOOD , JUST THE LEAD IS BAD---NOT EASY TO REPLACE ,,YOU HAVE TO CUT THE OLD ONE OUT AND REPLACE USING SEALANT ....
2) A PART CALLLED A HIGH VOLTAGE BLOCK--75.00--THIS PART TAKES HV FROM A FLYBACK TRANSFORMER ,,,SPLITS THE VOLTAGE TO GO TO THE 3 PICTURE TUBES
KEEP IN MIND ,,IF YOU HEAR A POP--IT'S USUALLY A HIGH VOLTAGE ARCING TO SOME METAL--YOU ARE BETTER NOT PLAYING THE TV

THESE JOBS ARE BEST DONE BY TECH'S -TUNICA

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RCA 52 rear projector tv makes chirpping noise wont turn on


You have a bad high voltage transformer. It is the white square device about 3inch square with large red wire coming out. Must be replaced with RCA original NO GENERIC. Also the horizontal output transistor must be checked to see if it is good. Recommend honest qualified tv repairman

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