Question about RCA P52921 52" Rear Projection Television

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52 in. rca tv model p52921

Since an electrical storm caused a power surge by striking a tree on our property, the tv has horizontal grayish lines w/no sound or any other functions

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Posted on Feb 17, 2008


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Posted on Jan 02, 2017


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This morning I tried to turn my RCA TV (model 24R411T) on and nothing happened. I tried plugging it into a different outlet, still nothing. I tried leaving it unplugged about 10 minutes and trying again,...


Power surges or nearby lightning strikes can destroy electronic equipment. However, most of the time, damage is minimal or at least easily repaired. With a direct hit, you may not recognize what is left of it!

Ideally, electronic equipment should be unplugged (both AC line and phone line!) during electrical storms if possible. Modern TVs, VCRs, microwave ovens, and even stereo equipment is particularly susceptible to lightning and surge damage because some parts of the circuitry are always alive and therefore have a connection to the AC line. Telephones, modems, and faxes are directly connected to the phone lines. Better designs include filtering and surge suppression components built in. With a near-miss, the only thing that may happen is for the internal fuse to blow or for the microcontroller to go bonkers and just require power cycling. There is no possible protection against a direct strike. However, devices with power switches that totally break the line connection are more robust since it takes much more voltage to jump the gap in the switch than to fry electronic parts. Monitors and TVs may also have their CRTs magnetized due to the electromagnetic fields associated with a lightning strike - similar but on a smaller scale to the EMP of a nuclear detonation.

Was the TV operating or on standby at the time? If it was switched off using an actual power switch (not a logic pushbutton or the remote control), then either a component in front of the switch has blown, the surge was enough to jump the gap between the switch contacts, or it was just a coincidence (yeh, right).

If the TV was operating or on standby or has no actual power switch, then a number of parts could be fried.

TVs usually have their own internal surge protection devices like MOVs (Metal Oxide Varistors) after the fuse. So it is possible that all that is wrong is that the line fuse has blown. Remove the cover (unplug it first!) and start at the line cord. If you find a blown fuse, remove it and measure across the in-board side of fuse holder and the other (should be the neutral) side of the line. The ohmmeter reading should be fairly high - well certainly not less than 100 ohms - in at least one direction. You may need to unplug the degaussing coil to get a reasonable reading as its resistance may be 25 or 30 ohms. If the reading is really low, there are other problems. If the resistance checks out, replace the fuse and try powering the TV. There will be 3 possibilities:

It will work fine, problem solved.

It will immediately blow the fuse. This means there is at least one component shorted - possibilities include an MOV, line rectifiers, main filter cap, regulator transistor, horizontal output transistor, etc. You will need to check with your ohmmeter for shorted semiconductors. Remove any that are suspect and see of the fuse now survives (use the series light bulb to cut your losses - see the section.

It will not work properly or appear dead. This could mean there are open fusable resistors other defective parts in the power supply or elsewhere. In this case further testing will be required and at some point you may need the schematic.

Jun 14, 2010 | RCA 27R411T 27" TV

2 Answers

Power light flashes 3 times and makes and alarm or chirping sound then nothing. its a 52 inch RCA hd52w59 itc222 chassis. I replaced cp150 and cp120/114 and also flyback transformer and still same thing? I...

Chirping sound is coming from coil on right side behind FBT, resolder then use Glue gun to glue on top of coil LL037,Make sure high voltage wire from FBT to Trippler is in Good this is what maybe causeing lines and fuzzy picture.Also make sure solder on all pinns of FBT are good.

Sep 22, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

Lightning Surge, RCA 32V432T, will not power up

Throw TV AWAY,these tvs had alot of problems without lighting hitting them,It probably played out FBT flyback transfomer CK hori out put Transistor if shorted replace FBT also.

Aug 06, 2009 | RCA D52W19 52" Rear Projection Television

1 Answer

Rca P52921 52 in. projection made apopping noise

sounds like possibly the high voltage amplifier' just a guesas

May 08, 2009 | RCA P52921 52" Rear Projection Television

1 Answer

RCA Model #R52Wh74 HDTV Rear Projection

Do you have the convergence option in the customer setup menu? IF YOU DO NOT consult the tips and tricks section of this website for the article ' "The fl231 fuse problem" If you do then it will need some more trouble shooting

Apr 04, 2009 | RCA P52921 52" Rear Projection Television

1 Answer

Power to tv but will not turn on

there maybe defective parts in the power supply section of your tv.

Aug 09, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

RCA p52921

You will need to connect your antenna and do an auto search. When the search is over you might have to choose the broadcast option over the cable selection. That might bring in the picture.

Jul 21, 2008 | RCA P52921 52" Rear Projection Television

1 Answer

High Voltage leakage

Yes Flyback Transformer can have a small pin hole leaking out high voltage.or it may be cracked.

Jan 17, 2007 | RCA P52921 52" Rear Projection Television

2 Answers

56" RCA projection TV

If you can find the horizontal output transistor which is located near the flyback transformer,one lead of this drive transformer is connected to the base lead. (horizontal output transistor). There may be a little coil in series with this lead going to the transistor.

Jan 17, 2007 | RCA P52921 52" Rear Projection Television

2 Answers

Tv Shut off

check the regulator or the str,the horizontal transistor,or fuse

Nov 30, 2006 | JVC AV-27530 27" TV

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