Question about Vizio P50HDTV20A 50 in. Plasma HDTV

1 Answer

Loud noise then lose picture

Tv is hard to turn on. lots of unplugging and plugging until it comes on. When it finally comes on it takes about 15 minutes or so before one of the speaker will work. The biggest problem is that there will be a loud electrical popping noise then the screen will go black, no sound but the green power LED light will stay on. We have to unplug it for about 10-15 secs then plug it back in to get the tv back on and this can go on for several times all day every day. Any suggestion for an easy fix

Posted by on

  • Paul Lucas Jan 09, 2014

    $45 fix !!!! looked for bad capacitors (dome shaped) on the power supply board replaced with same micro ferens but a little higher voltage (safe) and done. Put everything back together plugged it in and works fine. saved myself $150-$300 for them to send out a tech. I know nothing about elelctronics but a couple of you tube videos I watched was enough to show me what needed to be done

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Vizio Master
  • 41,738 Answers

The green power LED probably is merely indicating that power is getting to your TV but the internal power supply is failing as evidenced by the loud "pop".

Posted on Dec 31, 2013

  • Paul Lucas Jan 01, 2014

    could the issue be one of the sustain boards or is it primarily the supply board?

  • Paul Lucas Jan 01, 2014

    are there any obvious signs to look for?

×

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad
Shuttle83
  • 1139 Answers

SOURCE: Vizio 50" Plasma VP50

Hello SuziCanevaro,

This may have been the sound of electrolytic capacitors exploding. I would not suggest plugging the set back in until you can have it checked by a qualified TV technician. If you are skilled in Electronics and would like to work on this yourself, you will need:

The schematic diagram, a multimeter, a signal generator, an oscilloscope, and an isolation transformer.

I hope this helps,

Thank you,

Shuttle83

Posted on Feb 23, 2008

freetek
  • 5568 Answers

SOURCE: Screen powers off and power indicator goes out after ~30 minutes

Your message is pretty old but I'll give you my un-copywrited spiel anyhow;
If it just fails to turn on, the main power supply is probably at fault and without some technical background and a couple of test instruments, you will not be able to do the repair yourself. 
What you can do though is; unplug the set, let it stand overnight or at least several hours, remove the back panel and look for a separate board with mostly larger components on it; it will have a ferrite core transformer on it and several larger capacitors which are cylindrical and mounted vertically to the board.

 
Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.  
 
If you see signs of overheating such as discoloration of the board material, it may not be repairable but if you can find a part number on the board, you might be able to buy the power supply and install it yourself.
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload. 

Posted on Oct 25, 2008

Shuttle83
  • 1139 Answers

SOURCE: Vizio SV470XVT1A makes screeching sound

Hello,

This sounds as if it could be a ballast problem, or a switching power supply transformer problem. Both of these can produce this sound. I would suggest that you have a qualified TV technician repair this set due to the dangerous voltages and currents that could be present. In my experience with these TV I would have the technician pay special attention to the power supply board and the backlight/inverter section which includes the ballast used to fire the backlight.

I hope this helps,

Thank you,


Shuttle83

http://www.electron-age-technologies-llc.com

Posted on Jun 17, 2009

  • 1 Answer

SOURCE: LCD TV picture is green

I just called Vizio and they said to unplug the TV, then physically hold in the power button on the TV for 2 minutes.

Posted on Jan 04, 2010

SOURCE: TV looses picture and sound. Will not turn back on

www.plasma-television-repair.com/Sample-Preview-Plasma-Tv-Repair-Training-Manual.pdf -
Above is a training manual, this should help you find and fix the problem if you wish to DIY. If you DO, decide to DIY, you MUST MUST get a Service Manual, for your exact make & model. it will be similar to the Training manual, but explicitly for your set. I do not recommend it however.In my professional opinion, you should contact Vizio and ask for an approved local service center, then, get a "Quote" for repair.
With faults such as this, it is important to leave them disconnected from the wall, as it is entirely possible, for a faulty, TV, to cause a fire, an explosion, or both. Anytime one hears any sort of "pop" similar or not, is grave cause for concern, as usually this means some sort of component failure, in a high voltage area.

Posted on Apr 29, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Funai tv. When plugged in, makes ear piercing high pitched buzz that goes away when unplugged. Will not respond to buttons. No picture or power. Already replaced power board. What now??


TV not turning on; making high-pitched sounds - Tom's ...

www.tomshardware.com > Forum > Graphics Cards

Tom's Hardware Guide
Nov 30, 2013 - 7 posts - ‎2 authors
Both of them are refusing to turn on, and make high-pitched sounds when plugged in and unplugged. More about : turning making high pitched ...Missing: ear ‎piercing

Top 136 Complaints and Reviews about Funai TV ' Page 2

www.consumeraffairs.com > Electronics > Televisions

Rating: 1.1 - ‎65 votes
We unplugged the unit and waited 15 - 20 seconds and plugged the unit back in, and it wouldn't ... He heard a loud high-pitched whining which led him to TV in my daughter's room. ... It only makes a humming sound now, no pictures at all.Missing: ear ‎piercing

HELP! what is that high pitched noise when tv is on? - TV - Audio ...

www.tomsguide.com/forum/60895-6-help-high-pitched-noise

Jan 25, 2013 - 3 posts - ‎2 authors
Hello, I hear this constant high pitched noise, almost like ringing, but even ... pitch

Jan 21, 2016 | Funai Televison & Video

1 Answer

Power comes on but no picture or sound


Make a hard reset to this set and try. Unplug the TV from AC mains wall socket, and re-plug it after 15 minutes or so. This will make the TV to a hard reset.

Sep 25, 2012 | Philips 42PFL3704D LCD TV

1 Answer

My TV takes about 15 minutes to start playing.


It sounds like you have a problem with your signal board. The signal board will need to be replaced.

you can get parts for this tv at www.interliquidparts.com

Feb 22, 2012 | Televison & Video

1 Answer

We have a Samsung DLP about 5 years old. We noticed that the fan or some sort of hummning sound was coming from the back louder than normal while TV is on. Then suddenly the picture would start to freeze...


This tv have a colors wheel,hear loud motor noises,humming noises,squiling or grinding noises,have pictures black and white.All these causes are by the colors wheel is worn out, warp rubbing against it motor or fiber plastic glass briddle about to brake aparts.Don't turn this tv on anymore until,u change the colors wheel or u will damage the projection engine.The colors wheel are hard to change for amatur and hobiest.Because involved taking out many machanical parts,before even can come to the colors wheel to take out and change it.The best course to to hire a Tv Tech.to do this job.The price colors wheel part and labors.Awhile back was about $500-550,now??

Sep 10, 2010 | Samsung DLP HL-P5663W 56" TV

1 Answer

My Mits 62"initially has no picture and loud noise until warms up


all of these tvs had bad caps.. that is probably your issue, as they can cause lots of symptoms.

here is my tutorial on this
http://www.fixya.com/support/r5069371-mitsubishi_led_keeps_flashing_green
Let me know if I can be of further assistance.

Jun 13, 2010 | Mitsubishi WD-52525 52" Rear Projection...

2 Answers

Toshiba 62HM195, Loud hum noise when TV is first turned on.


I have the exact TV and had the exact same problems. It is the light engine with color wheel that needs to be replaced, and they are VERY hard to come by for this model. Our repairman has had our TV for 5 months and still cannot locate a vendor that carries the part. He said according to Toshiba, the part has been discontinued. If you happen to find one, please post. I'll do the same.

Aug 18, 2009 | Toshiba 62HM195 62" HDTV

1 Answer

Hdtv dlp 52 inch loss of picture and loud buzzing noise


Please see http://www.fixya.com/support/t1011937-transformers. It sounds like your flyback transformer is not properly soldered down/is failing.

Sep 06, 2008 | RCA HD52W59 HDTV Projection Television

2 Answers

TV requires multiple attempts to turn on


You have discribe a problem that sounds like a powersupply cap. It may also be more than one. LOOK at the board very hard for bad caps.

Jul 26, 2008 | RCA D61W20 61" Rear Projection Television

1 Answer

Whistle noise? POP? Black out


sounds like the lamp has shattered. check the lamp

May 18, 2008 | Samsung HLN5065W 50" Rear Projection...

1 Answer

Powering up and warmup problems


why does my lcd monitor change different colors no picture just turns to all sort of colors ViewSonic N2751W 27 in. LCD Television thanks 4 your help

Dec 05, 2007 | ViewSonic N2751W 27 in. LCD Television

Not finding what you are looking for?
Vizio P50HDTV20A 50 in. Plasma HDTV Logo

200 people viewed this question

Ask a Question

Usually answered in minutes!

Top Vizio Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75169 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

Are you a Vizio Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...