Question about RCA D52W19 52" Rear Projection Television

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Arcing on high voltage board

I just acquired one of the [in]famous RCA 52" TVs that I have heard always seem to go bad. When you plug it in, there is arcing and smoke, appears to be underneath? the power board, directly under the CL031? .0087uF 2000vDC capacitor. I have not disassembled it yet. I thought I would ask you to see what I should visually check and/or replace.

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  • RCA Master
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Power supply borad 169.00 signal broad 279.00 cost of labor 275.00 add it up do you really want a set like this also tubes have been known to just break in half.

Posted on May 31, 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.

May 16, 2012 | RCA P52926 52" Rear Projection Television

1 Answer

Have a HDTV, model number HD52W67 , has no picture. My wife informed me that she saw a spark come from the back bottom. Spoke with someone who told me that this TV does not have a lamp but a tube. Need...


Most of the time when I have seen this it was either caused by a high voltage component leg arcing where the solder joint has gone cold, or the high voltage transformer is arcing. Most all the parts for this set are no longer available including the high voltage transformer and the board it is on. If the set is working, I would see if the power/ high-voltage board has a bad solder connection that is arcing. If it goes too far, the board will be burnt beyond repair. When you take the back off the set, it will be the board on the left. It is important to remove all the screws holding the board in place and flexing the lock tabs. It is a little tricky to get out. Once it is out, inspect the bottom of the board for any arcs marks. If you see one, make sure you remove all the carbon trail and re solder the component leg. Reinstall and before powering it up be sure all the plug connectors are in their proper place.
I hope this helps,
Skyassoc

Dec 10, 2010 | RCA HD52W56 52" Rear Projection HDTV

2 Answers

Heard a pop like a bulb blowing and can only get the sound. it makes a crackling noise when we turn it on.


It could have a arcing Hv Block or a something arcing on the Deflection Board. If the crackling noise is louder in the rear of the set, the Deflection Board is probably the cause. You can usually confirm by removing the lower back cabinet and observing the board on the left side. If you see any arcing at all, the board needs replacing. You can call Encompass Elect. for ordering the board at 1800-638-3328.
I hope this helps,
Skyassoc

Nov 12, 2009 | RCA Scenium D40W20 40" Rear Projection...

1 Answer

The power button light blinks a few times but no power afterwards. RCA D52W25 is dead. I lightly shook the TV last night and it worked until this morning.


These units are famous for loose solder connections at the high voltage transformer and for bad capacitors in the power supply. Have a repair shop check it out for you. You have to remove the Deflection PCB to do these repairs. Thanks

Oct 29, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Model 52" hd RCA tv Will not go on.hit power button green light keeps flashing.will not stop


These units are famous for bad capacitors in the power supply. When the capacitors go it causes voltages to fluctuate out of range. You have to remove the deflection PCB to repair this. Also look for loose connections at the high voltage transformer. This can be a dangerous circuit to work on. Have a repair shop check it out for you. Thanks

Oct 28, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

When tv turned on the power light blinks 3 times then shuts off tv never comes on RCA model #P46733AT Chassi #Ptk178LA


According to http://www.justanswer.com/questions/21mtb-rca-tv-p46733at-sn-xxxxxxxxx-not it looks to be the High Voltage Tripler.
It looks like you can get the replacement part from http://www.electronica-usa.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=EU&Product_Code=HR140431&Category_Code=
TVs have voltages that can kill you. Always keep one hand in your pocket. ;-)
-MLFnet

Oct 18, 2009 | RCA D52W19 52" Rear Projection Television

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.

Sep 08, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Power ligt blinks twice no high voltage


CK capacitors cp150 cp114 cp120 if cp150 is puffed up on top it is bad so replace all 3 caps.2200uf 16v and two 220uf 35v

Jan 16, 2009 | RCA D52W23 52" HDTV CRT TV

1 Answer

My 52 inch rca tv has sound but the picture keeps popping on and off .what can be wrong with it?


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

Oct 19, 2008 | RCA P52926 52" Rear Projection Television

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