Question about Televison & Video

1 Answer

Vizio vo420e back lights go out after 2 to 3 min of use. Video is still working and the audio still works

Posted by on


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.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Televison & ... Master
  • 75,289 Answers

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.

Posted on Nov 14, 2014


6 Suggested Answers

  • 2 Answers

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

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

  • 8197 Answers

SOURCE: I am considering the purchase

Yes it does suport the hdcp. you can see the specs here on link below.

Posted on Nov 22, 2009

  • 1 Answer

SOURCE: Vizio VO420E- Picture gets darker then screen goes blank

I have the same issue, its caused by the program powersaver when running an HDMI port. if you turn on the TV and your HDMI device close to the same time the info transfered between them tells the TV that the HDMI device is in sleep mode so the tv starts dark then fades black to save power. easy fix, turn on either the tv or HDMI device and wait till it is fully on before tunring on the other.

Posted on Apr 24, 2010

  • 1 Answer

SOURCE: I can't get my Playstation 2 or Wii to work with Vizio tv

I bought a RF Switcher Phillips SWS2325W/17 ...with this I was able to hook up my Wii...TV...DVD...and fine...hope this helps

Posted on Jun 29, 2010

  • 11361 Answers

SOURCE: Vizio VO420E " TURN ON, tv is showing no picture

It can be the main board, power supply, backlight inverter, etc.
You need to do some troubleshooting to narrow down the probelm, so please read my guide first.
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
Failed TV and Monitors:

Learn about bad caps:

Capacitors kit: he can make you a set of caps.
Or just make sure to use caps with low ESR, 105c rating such as PANASONIC FM or FC series.
Please post back what you find.

Posted on Nov 25, 2010

  • 1606 Answers

SOURCE: can i replace a vizio screen model #VO420E with a vizio screen model #VO42L FHDTV10A?

Hopefully you did not try to take the circuit board from the broken LCD and graft it onto the good one - the possibilities for problems are enormous.
Double-check all of the connectors, then compare the model numbers of the main board and power supply between the two sets. The cable between the LCD and the main board is often rather fussy and delicate - DO NOT pull on the wires! You may have to swap cables also. If the main board is different, try the one that went with the good panel (from the VO240E), and hope that part is good.
Note: electronics are susceptible to damage from static electricity. Handle the circuit boards only by the edges, and try to maintain contact with the metal shielding parts as much as possible (an anti-static wrist strap is a good means) while working on the set to discharge any static buildup on yourself.Once you are done, there is an e-Bay market for the remaining parts. If you have identified the bad board from the VO420E (by elimination), you can get more for the others, and you may still be able to sell the bad one to a reconditioning company, who will repair it and resell it.
The worst case situation is that the LCD panel driver board is bad, but as I understand your situation, the VO240E wouldn't turn on anymore. That is usually a power supply problem.

Posted on Dec 11, 2011

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer


Back-light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.

Sep 18, 2014 | Vizio VO Televison & Video

1 Answer

I plug in my Vizio TV and it will not power on however the orange light in the front is flashing.

Sounds like mine I replaced the Bridge Inverters ( easy job ) , and worked great after that. I got mine from Shop Jimmy dot com paid $85 cheap fix not like $300 - 500 ! you may pay for repair man.

Jul 23, 2014 | Vizio VO420E 42 in. LCD TV

1 Answer

I have a vizio 42 inch model VO420E serial# LUKECAK1409419. when i turn it on i get a black screen but i have audio. it does this in every input. what can i do to fix this problem?

Most likely you have a backlight problem. To verify this, dim the lights in the room. Take a bright flashlight, turn on the set, and shine it on the screen. If you see a faint picture, you have a backlight fault. Your backlight inverter may be built into your power supply board. If this is the case, you will have to replace the inverter/power supply board

Sep 01, 2013 | Vizio Televison & Video

2 Answers

The remote wont work on the t.v, i have tried other remotes and used the same remote on my other vizio and it work on the other, what is wrong with the t.v and how nuch does it cost to fix?

This could be as easy as unpluging tv for 5 mins and replunging it in or it could be a remote sensor. the sensor is less then $20.00 and the labor should be a service call. ask who ever you call ,what the charges are for a service call

Apr 15, 2010 | Vizio VO420E 42 in. LCD TV

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

25 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75289 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Cindy Wells

Level 3 Expert

5380 Answers

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

Answer questions

Manuals & User Guides