Question about Vizio GV47LF Television

2 Answers

No picture audio is fine

Problem was Intermittant, is now completly black screen. When it first started I could hear a Loud buzzing noise. If I turned it of in on the noise would cease.

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 327 Answers

Its definately the problem of timy components on the main board getting over heated and gone faulty and needs to be checked with a multi meter and replace from the board to make it proper.just check out the capacitors AND IC .on the board and remove and replace the faulty.

Posted on Dec 23, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Vizio Master
  • 19,396 Answers

Now you have completely black screen because the TV is on protection mode (diagnostic mode) and does not start.

That means that there is an internal fault, probably a faulty component, a short, or a cold solder joint.

Posted on Dec 23, 2008

  • Ginko
    Ginko Dec 23, 2008

    A loud buzzing noise may have been caused by a fault, either on the audio board, or on the power supply board inside the TV.

    That was probably caused by a faulty component, a short, or a cold solder joint that started giving the trouble.

    Now theon circuit detected the fault and will prevent tv from starting.
    In this case the TV will stay in standby.

    If the TV instead is completely dead, with no power at all , that means that the PSU is gone.

    In both situations you need to call a technician to fix this.


×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

It sometimes makes a static nose and the picture is dark i have tried messing with the color and back light settings and it doesn't do much


Samsung LCD TV with no video and high pitched sound - Digital TV ...

www.tomsguide.com/forum/54120-4-samsung-video-high-pitched-sound

Jan 7, 2010 - 26 posts - ‎15 authors
Hi, I have a Samsung LN40A550 LCD TV which I have had for just over a year. ... I was watching TV yesterday and all of a sudden the picture went all. ... started makinga very high pitched buzzing sound with no picuture coming on. We did have a bunch of green vertical lines, but now just a black screen.

Samsung LCD Green Screen - Forums - CNET

www.cnet.com > Forums > Samsung

CNETJun 11, 2015 - TV hooked up to basic cable and getting green screen picture. ... I was getting green static in the dark areas and green fuzz down the left hand ... where can you find the white ribbion, i have a lg rt-32lz50. it works sometimes, but i goes green. Samsung LCD TV screen went black (audio on, no picture)
Jun 11, 2015
Samsung LCD TV Has Flickering Horizontal Lines (Pic Inside ...
Jun 11, 2015
Samsung DLP crackling/static noise
Jun 11, 2015
LCD TV making clicking/cracking sounds
Nov 24, 2006
More results from www.cnet.com

Samsung LCD Loud Noise and Green Vertical lines at Start up ...

www.badcaps.net > ... > Troubleshooting TVs and Video Sources

Feb 03, 2016 | Samsung Ln40e550 40 1080p Lcd Tv ln40e550

1 Answer

When turned on the screen is blank and makes a high pitch buzz


Samsung LCD TV with no video and high pitched sound - Digital TV ...

www.tomsguide.com/forum/54120-4-samsung-video-high-pitched-sound

Nov 8, 2015 - 25 posts - ‎12 authors
Our is the same model and has started making a very high pitched ... to acutally turn on and then when it does, the screen is still black and we ...

Is your LCD making a buzzing or high pitch noise ...

https://www.devside.net/blog/lcd-making-a-buzzing-noise
Dec 30, 2008 - In my case, the monitor was fine for the first two months. But then started making a buzzing noise... 1) when on, 2) worse when .... my Samsung TV ismaking high pitched noises even if its turned off. I will NEVER EVER EVER ...

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


Dec 13, 2015 | Flat Panel Televisions

1 Answer

JVC TV LCD Model LT-42PM30 intermittant buzzing noise


Most likely suspect is the power supply board---transformers on that board can and do vibrate hard enough to cause this.

At our shop we either locate the part creating the sound and treat it to hot blue to muffle and remove the noise or if confirmed to be on power board--REPLACE THAT BOARD.

Apr 29, 2012 | Flat Panel Televisions

1 Answer

Set was on and made a loud pop noise and the picture went off. the red light was flashing and no picture. then it made a strange buzzing type of sound a few times. turned off for a couple mins and then...


It sounds like your screen inverter has just gone >bang< unfortunately.
Most screens inside use 2 main circuit boards, and you are most likely going to have to change one of them.
It's possible also for it to have been just the backlight bulb making the loud pop noise too. The inverter may have given out too much power and blown the bulb (a lot like you hear when a house bulb goes bang).

If you can't actually hear any TV sounds (normal sounds like music, voices etc. when they should be there), then it means the problem is more serious, and would need a specialist repair place to check out the electrical circuit inside.

Mar 30, 2010 | Sony KDF-E42A10 42 in. LCD Television

2 Answers

Loud buzzing noise on vizio tv


It sound like you may have sound processor problem which is part of the main board, I would also look at the 12vdc from power supply to make sure it is clean DC.
Parts: http://www.shopjimmy.com/catalogsearch/result/?q=l37hdtv10a

http://en.wikipedia.org/wiki/Capacitor_plague

Dec 22, 2009 | Vizio L37 Television

1 Answer

Samsung LN-t5265f picture turns off after a few seconds hear buzz


You have a bad Power supply. Have a trained Samsung tech replace the Power Supply.

Jul 02, 2009 | Flat Panel Televisions

5 Answers

Vizio speakers make a buzzing noise


It's not the speakers. I usually hear of this problem when hooked up to an HD cable box. You can adjust the volume on the cable box and also on the TV. I'll bet you don't have this problem when watching a DVD.

If the problem is what I think it is, your HD Cable box is set at a really low volume while your TV is set to a rather high volume. Try setting the TV volume to around one-third, then set the volume on the cable box until it's as loud as you'd ever want to hear it. With the TV at such a high volume, you're actually amplifying any stray electronic signals that the wires might be picking up, and the above solution will fix that.

Good Luck.

Mar 08, 2008 | Vizio L37 Television

2 Answers

Very loud fan or vibration noise


Listen from the back of the TV and locate the source of the noise. There may be fan with a bad bearing. The noise will lead you to it.

Nov 06, 2007 | Soyo Dymond DYLT037A Television

1 Answer

Loud buzzing


check your connections again, if you have the audio and video reversed you will get this exact problem no video/ fuzzy video, and squealy noise out of only one speaker (other will likely sound correct) You're watching the sound channel, and listening to the video channel basically... hehe

Aug 14, 2007 | Zenith P42W46X 42 in. Plasma EDTV

Not finding what you are looking for?
Vizio GV47LF Television Logo

Related Topics:

52 people viewed this question

Ask a Question

Usually answered in minutes!

Top Vizio Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

68301 Answers

Dave Naylor
Dave Naylor

Level 3 Expert

834 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Vizio Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...