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I have a vizio vu42l LCD tv. Screen went black still have back light today. Cannot get menu, video, audio, and intermittently must use power cord to turn tv on and off. Screen is still backlit and can see light from vents. What should I do to fix?

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  • Contributor
  • 11 Answers

REPLACE POWER SUPPLY

Posted on Nov 23, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 87 Answers

SOURCE: Vizio GV42L LCD TV screen black when turn TV on first time

If you are using a set top box this might be caused by turnig the box on at the same tie as you turn the tv on or slightly after you turn the tv on.  If you are using compnent or HDMI inputs the set needs to see the signal as it is turned on to know what formt the signal is in. 

Posted on Oct 23, 2007

  • 1 Answer

SOURCE: Audiovox LCD FPE3206 problems

Hi, All.
I ordered a new power supply module on ebay. Cost about 106.00 delivered. Came in a few days. I replaced the unit, bunch of screws, all wires were cable plugins, no problems at all.
After reassembly, it worked. What can I say? Sometimes ya just get lucky.
tom

Posted on Oct 21, 2008

  • 10 Answers

SOURCE: VIZIO LCD VX20L, intermittant video/audio with Blue screen message "No Signal"

If the tuner is bad, changing the mainboard should fix the problem.

Posted on May 23, 2009

ginko
  • 19396 Answers

SOURCE: Sanyo DP42746 - Screen went black and no sound. Power light on.

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on Jun 16, 2009

MLFnet
  • 328 Answers

SOURCE: Vizio plasma. screen went black, and the power light went out.

Sounds like the power suply went. I don't know that model off the top of my head, but you might find a replacement here http://www.electronica-usa.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=EU&Category_Code=PLA
-=/ Daft Tech /=-

Posted on Oct 26, 2009

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Vizio SV470XVT1A model TV. Power is on, Vizio light is white, but the screen is black, no audio and no backlights present. What is the most likely problem?


Check and replace the T'Con board. It is faulty. If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Feb 20, 2017 | Vizio Televison & Video

Tip

Vizio VU42L Manual Download


Vizio VU42L LCD TV Manual Download

Model: VU42L

840592c.jpg

Have you lost your Owner's Manual for your Vizio VU42L LCD TV?

Would you like a digital copy of the Vizio VU42L LCD TV Users Guide for easy searching of terms and quick reference?

The Vizio VU42L LCD TV manual is available free in pdf format, just follow the link below (& Click FREE):

Download Vizio VU42L LCD TV Manual


I hope that helps.
________________________________________________

on Jun 06, 2010 | Televison & Video

Tip

Vizio VU42L Manual Download



Vizio VU42L LCD TV Manual Download

Model: VU42L

840592c.jpg

Have you lost your Owner's Manual for your Vizio VU42L LCD TV?

Would you like a digital copy of the Vizio VU42L LCD TV Users Guide for easy searching of terms and quick reference?

The Vizio VU42L LCD TV manual is available free in pdf format, just follow the link below (& Click FREE):

Download Vizio VU42L LCD TV Manual


I hope that helps.
________________________________________________

on Jun 06, 2010 | Vizio VU42L 42 in. LCD TV

1 Answer

Vizio VU412L 42" made a


The pop has been generated by the explosion (literally) of an capacitor from the power board of the tv. When that happened the power source has been shorted and, if you're lucky, it went in protected mode. Fixing that is a relatively simple job - all you need is a soldering iron and a basic experience in using it. Follow this
http://www.youtube.com/watch?v=YCSNWi3UHf4
If you're unlucky the entire source has been fried and it will have to be replaced - here's a good one
http://cgi.ebay.com/VIZIO-VU42L-FHDTV10A-POWER-SUPPLY-DPS-283BP-C-REV-S0-F-/370477438027

Mar 06, 2011 | Vizio VU42L 42 in. LCD TV

Tip

Vizio VU42L Manual Download


Vizio VU42L LCD TV Manual Download

Model: VU42L

f95dd29.jpg

Have you lost your Owner's Manual for your Vizio VU42L LCD TV?

Would you like a digital copy of the Vizio VU42L LCD TV Users Guide for easy searching of terms and quick reference?

The Vizio VU42L LCD TV manual is available free in pdf format, just follow the link below (& Click FREE):

Download Vizio VU42L LCD TV Manual


I hope that helps.
________________________________________________

on Jun 06, 2010 | Vizio 42 in. LCD TV

1 Answer

Intermittently my Vizio model e370va volume will rise on its own and get distorted then turn off and in a few seconds, turn on the TV. Visio tried replacing the power board. Same problem. Replaced the TV...


I was having the same issue. I found this on Fixya and it seems to have worked.

Okay I just called and found this out. I have the 32 inch vizio hd flat screen. My problem with weak and fluctuating volume, was that I have a cable box. Go into menu, then audio and under the advanced audio section you will see srs trusurround HD and srs trusurround. Basically this function automatically adjusts volume levels for satelites and whatnot. But because cable boxes automatically have this feature you could just turn off the srs trusurround. Hopefully that should help you.

Dec 06, 2010 | Vizio VU42L 42 in. LCD TV

1 Answer

No Screen or sound


there are two possibilities to this problem. First and cheapest way is to replace the main board. Second, replace the inverter board. This is the boards that are mounted vertically on both sides of the TV.

Jun 18, 2009 | Vizio VU42L 42 in. LCD TV

2 Answers

Vizio 42" lcd powers up with sound only - no picture


It sounds to me that the unit has a faulty inverter board which could be due to an overheated/bulged capacitor. I would send in a claim on it to the factory if it is still under warranty.

May 28, 2009 | Vizio VU42L 42 in. LCD TV

1 Answer

GV42L


I had this same problem. Vizio sent someone out to replace the motherboard. It didn't fix the problem. Since it was under warranty, they replaced it with a newer model VU42L. Doesn't have this problem, but it has others.

May 02, 2008 | Vizio GV42L 42 in. LCD Television

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