Question about RCA 32V420T 32" TV

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Rca arcing and hissing

My 32" rca was hissing and now it is arcing. I read something about loose high voltage leads? is this right and if so where are they? thank you.

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  • adamwes Apr 06, 2008

    yes it is.

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Most likely,you have a bad transformer AKA flyback ......
Is 32V420TYX6 the service # of your TV ?......Verify..........T.

Posted on Apr 06, 2008

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My rca p52926 picture cuts in and out


If model number is correct (on rear of set in small letters it should be a PTK 195 chassis) you have a high voltage lead somewhere that is arcing.

This set did have issues with the High Voltage transformer failing and also that High Voltage (well over 10,000 volts) gets distributed to each of the 3 picture tubes this model uses.

Sometimes the lead where it connects to one of the tubes begins to arc---it is coated with white silcone to prevent this.

If arcing around the entry point to any of the tubes sooner or later it will take the set down--destroy parts that are currently ok.

Usually we locate this by turning set on with back off and looking and listening when set is turned on---If a frying or pop is heard up above the main boards--one of the entry points (called the 2nd Anode) is arcing.

I have seen them arc hard enough and long enough to actually crack and break the glass wall of the picture tube.

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It sounds like you have a high voltage lead that's arcing, most likely one of the high voltage splitter leads. It may be either a connection that's coming loose, or that has been slowly degrading through periodic arcing, and is now getting worse. That's a section of the TV that I seriouslyy recommend you have a professional troubleshoot, as there can be upwards of 32,000 volts d.c. running in it.

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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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1 Answer

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this is the the fly back transformer ,replace it or if you are not a repair man ,please contact the nearest repair shop.(risk of shock hazard -high voltage!!!).

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You apparently have a high voltage arc. Possibly the anode lead to your picture tube. Also the flyback transformer could be arcing. If you're not experience with tv repair, you need to have a tech check it for you. The circuits operate at very high voltage and if you get into it you can get a possibly fatal electrical shock. Be careful !!! Stargazer

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Sounds like you have a high voltage arc if the sound is not coming through the speakers. Possibly the high voltage leads are not pushed in all the way. Be careful! Make sure the set is off and you may also want to ground these leads before you touch them. Youcan get a nasty shock if you don't.

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