Question about Panasonic TH-50PX500U 50 in. Plasma Television

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WHEN IM WATCHNG TV IT JUST MAKES A POP AND YOU CAN HERE LIKE A RELY CLICKING BEHIND IT LIKE IT WANTS TO TURN ON , IF YOU UNPLUG IT AND PLUG IT BACK ON TV ON BUT COULD BE A WHILE BEFOUR IT CLICKS OFF AGAIN

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  • Panasonic Master
  • 14,553 Answers

I would look to the power supply where the relay is located---look for any puffy filter caps--see photos attached.


WHEN IM WATCHNG TV IT JUST MAKES A POP A - 11_7_2012_1_44_28_pm.jpg11_7_2012_1_45_12_pm.jpg

Posted on Nov 07, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

zjut
  • 106 Answers

SOURCE: panasonic th-42pa20 plasma 42 inch tv

Try to replace the Main Power Supply board first.

Posted on Jan 01, 2008

  • 1894 Answers

SOURCE: panasonic th-42pa20 plasma 42 inch tv

was that capacitor damaged?

Posted on Jan 11, 2008

jerryg50
  • 1667 Answers

SOURCE: panasonic 50 inch plasma

You should call for warranty service. If the set is very new try to get it exchanged.

There are some very heavy duty power supplies and many high power matrix drivers used in Plasma sets.

The description sounds like the noises are very loud. It is normal with any of these TV sets, if you put your ear right up to the back of the set at the vent holes you will hear some noises. These would be some acoustic harmonics from the power supplies and related circuits.

I am wondering if it is possible that there is something that is becoming less stable. If the set is working very well without any failure, so-far this is a very good sign. Before it gets to be a problem, I would have this checked.

On many models of these sets, they use fans for cooling specific areas. A bad fan can cause noise.


Jerry G.



Posted on Apr 14, 2008

GregV24CHOPP
  • 11 Answers

SOURCE: 50 inch Plasma panasonic TH-50PZ80U.

if you have a warranty let them check it out before opening the panels, it may void it.... may be an internal power short.

Posted on May 14, 2009

djchillsnyc
  • 151 Answers

SOURCE: panasonic viera tv won't turn on. Power light

hello, you have a either your su, sd or sc boards fualty and it is a driver sos1 thats what the manual reads the best thing to do if your not electronically inclined or able to fix it is to get a service manual and make sure it is for your specific model and size you will find what the 7 blink codes mean, on my side i have a 42 in pana the service manual for this set and your is similar so since it is not the same model i cant tell you exactly what the truoble is but your best bet is to find a service manual find the 7 blink fualt then without getting ripped off you will know what the service man needs to do if you dont know or cant replace the parts yourself that is besides having to download firmware from your computer to a sd card and update your set but you need to solve the blinking code first it may solve the entire issue. the tv should come on when you resolve the blink codes or replace the fualty board or boards

Posted on Oct 14, 2009

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I have a samsung 50 plasma tv that will not turn on now. If I unplug it and plug it back in it makes a clicking sound 4 or 5 times then nothing happens.


Probably bad capacitors. Samsung TVs are famous for this. Relative easy fix for a technician that knows how to do board level repairing

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1 Answer

Hi. I have a Zenith 42" plasma TV - Z42PQ20 that's


I had this exact problem on my TV, everything said it was the power board. It wasnt, luckily i was able to return that board. It was the YSUS board.

I should have done this this first but this is how i verified the old power board was good. Unplug TV, take the cover off and disconnect the wire harness going to the YSUS, plug TV in and turn on. If led stay blue its the YSUS.

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1 Answer

Our RCA HD62W59 makes a loud squealing noise after being turned on for about 10-15 minutes.


I had the same problem on my hd52w59 hdtv and sucessfully fixed it yesterday from an answer i found here...so hopefully im paying it forward.

First off, im no TV tech so you do this at your own risk!!! Based on the research ive done regarding this subject, if there is no issue with the picture and its not related to speakers(ie. if you mute it and it still makes the sound) then its the horizontal drive coil. The fix i read was to put nail polish or hot glue around the coil. Well i came up with something easier and its worked for a few days now(fingers crossed). An old fashioned wooden clothes pin. Put it on the horizontal drive coil and it absorbs the harmonic frequency(high pitch noise). I realize this is a wooden object on a electrical piece that heats up but i have had no issue as of yet.

Now, how to locate the noisy horizontal drive coil...unplug TV from power, remove the lower rear panel around where the wires go into the tv. There are about 8 #20 torx bit screws you remove, then use a flathead screwdriver to pop one clip on each side and 3 underneath, this will allow the plastic trim panel to pop off. Get a flashlight aimed in there so you can see the components. Plug the TV back in and turn it on...wait for the noise. Now make sure you dont touch anything high voltage and once again you do this at your own risk...but take a small wooden stick (i used the stick from a plunger) and touch it to the suspected culprit...when you touch the noisy drive coil the noise will immediately go away. Once you know which one it is turn the TV off, unplug it, and put a wooden clothes pin on it. Plug the TV back up, turn it on and ensure the sound doesnt come back before putting everything back together.

Beats the hell outta paying a technician $75-100 plus parts, huh?

Jan 26, 2011 | RCA HD52W59 HDTV Projection Television

1 Answer

TV does not power on. For the last several months I would have to unplug it then plug it back in to get it to turn on. It makes a clicking sound when plugged back in similar to the same sound it normally...


I have similar problem with my 42hds69. What I did is unplug the tv and remove the cover and vacuum everything especially the fan and remove the power supply board and brush/vacuum the back side... careful about static so hold the metal frame while you're vacuuming. Reassemble everything... mine worked... and still working... Good luck.

Aug 04, 2010 | Hitachi 42HDS69 42 in. Plasma Television

2 Answers

Tv just makes clicking noise and doesn't turn on


I had the same problem. The power board for the on-off had to be replaced. The set is only 11 months old.

Oct 19, 2009 | Philips 42PFP5332D 42 in. Plasma...

1 Answer

TV shuts off after 5 minutes.


ours did that we had to replace the lamp

Jul 21, 2009 | RCA D52W135D 52 in. TV/DVD Combo

1 Answer

Clicking power supply? wont turn on


I had the Same issue. on a 50PF9431D/37 set. Many Plasma Set's use a LJ44-00118A PS-505-PH Power supply from Samsun. Know to have this common problem. If you can, or have a friend that can Solder components?. Unplug your set remove the back panel & locate your power supply. It will be the PCB in the center of the set just above the Video/Audio conections. http://www.shopjimmy.com/power-supply-unit-lj44-00118a-from-philips-50mf231d-40.htm. Link to a photo of the PCB. Make a note of the location of all cable connections then unplug them all. Un-install PCB, Check a Fuse first. I believe their is 5 or 6 of them on the PCB. Then replace the two 3300uf 10v 105C Radial capacitors at C8060 & C8059. The location of the caps are in the Lower bottom edge of the PCB. A local shop may Carrie them if not, digi-key has them. Part # http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=493-1754-ND. Total cost was $7 with S/H.

Jun 02, 2009 | Philips 32PF9964 32 in. Television

2 Answers

No picture but sound is perfect


Sounds like the video output has a problem. Maybe missing the 200 volts from the High voltage transformer. The vertical circuit may have an issue. Either way it's hard to diagnose without looking at it. If you need a technician contact JVC online at: http://maps.jvc.com/cAscList/ Good Luck

Apr 29, 2007 | JVC AV-36FA44 36" TV

1 Answer

TV makes clicking sound when power cord is plugged in


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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