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Backwards/inverted picture vizio m420nv

Tv got wet and flipped the picture how do i fix it?

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  • Vizio Master
  • 687 Answers

This would require the service menu & I highly recommend a technician do this as if you are able to find the service code you can get into a position that the TV does not work at all.

Posted on May 08, 2014

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6ya6ya
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Posted on Jan 02, 2017

SD Tech
  • 14553 Answers

SOURCE: Mirror image - can't fix

It likely has a problem that has affected the microprocessor in some way which might be explained if you had a power outage?

I would suggest if you have not done so to unplug it for a while and turn it back on after a hour.

Also call customer service at Vizio and inquire if this is a known problem and if there is a possible software upgrade to correct and restore the set to original shape.

It can be a pain to call and wait on the phone and is hit or miss as to seeing if the person who tries to help knows what they are doing or not.

If they snap an answer "you need to take it to a shop" persist and try to talk to a technician.

Posted on Mar 22, 2012

Testimonial: "Thank you and even before I read your response I tried the old "unplug for 30 seconds" routine. I assumed my boyfriend had already tried that out. Anyway it worked and things are fine now. We had had an electrical storm that day and there was probably a power surge. The Vizio wasn't on a surge protector but is now. The Vizio repair people/ call center people were very nice and helpful although we (fortunately) don't need to go that route. Stephanie"

  • 2 Answers

SOURCE: Vizio flat screen tv screen goes all green (no

if you have comcast you can use your remote to change the tV program from cabke to DVD then change it back to cable. your image should come back.

Posted on Apr 24, 2010

alpug
  • 1961 Answers

SOURCE: my vizio gv42l fhdtv 10a picture flickers like a

you need to check first the power supply board whether the output supply 12-24vdc for the inverter board is stable and not flactuating..you can measure the output voltage with a multitester..you get a voltage output of 12-24 with the inverter board is connected or loaded to the system.be carefull of the high voltage at the inverter board..once the output is stable replace the inverter board or you can measure the output of the inverter be very carefull..the output range upto 500vac.be carefull..if the high voltage is stable replace the lamps...tnx and good luck..

Posted on Jun 03, 2010

Testimonial: "Thanks again. :)"

  • 11800 Answers

SOURCE: Vizio 42" LCD Flatscreen TV lost picture It is a

Both: the one that never lights is totally dead, the one that lights has a short. But, if you can locate the short on that board and remove it (replace the failing part and clean the burned board) its salvageable.
Unfortunately the big problem is in the power source: the 24v that is used to power the inverters and the audio amplifier is working while the 12 and 5 v lines that are used to power everything else are dead - which is a very bad sign, it means that there's something very bad in the mainboard, you will have to verify it .

Posted on Jan 16, 2011

  • 378 Answers

SOURCE: I have a Vizio M420NV

press Menu, picture, scroll down to more, press OK, then press size & position. adjust as needed.

Posted on Apr 03, 2011

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1 Answer

My Vizio m420nv tv the left half of the screen has a yellow tint throught the whole screen. the right hand side is fine. Ive changed the T Con Board and didn't change anything. any ideas?


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.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Dec 01, 2015 | Vizio m420nv 42 in. LCD HDTV

1 Answer

M420NV


Check and replace back-light inverter board. Check the input supply voltage to back-light inverter board. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock. Instead, contact any experienced service technician, or the nearest service center.

Apr 23, 2013 | Vizio Televison & Video

1 Answer

Vizio M420nv LCD TV Black Screen


lightning can do extensive damage to electronics equipment especially flat panel TV's. I would really recommend a professional diagnosis instead of board swapping. You could have several boards that are damaged!

Feb 13, 2013 | Vizio m420nv 42 in. LCD HDTV

1 Answer

Vizio m420nv has sound but no picture


Hello there

Actually that problem is very common on all LCD TV,, that problem is cause of either inverter board or t-con..

In this case you don't need to check the voltage that is too complicated for you,,only visual check is enough..

I share you my tricks and hope it helps..

Power on your TV turn off your lights..if you will see the light comes from the screen the problem is t-con..if no light the problem is inverter board (backlight) board

Hope it helps..

Don't forget to rate..

Aug 25, 2012 | Vizio m420nv 42 in. LCD HDTV

1 Answer

Mirror image - can't fix


It likely has a problem that has affected the microprocessor in some way which might be explained if you had a power outage?

I would suggest if you have not done so to unplug it for a while and turn it back on after a hour.

Also call customer service at Vizio and inquire if this is a known problem and if there is a possible software upgrade to correct and restore the set to original shape.

It can be a pain to call and wait on the phone and is hit or miss as to seeing if the person who tries to help knows what they are doing or not.

If they snap an answer "you need to take it to a shop" persist and try to talk to a technician.

Mar 22, 2012 | Vizio m420nv 42 in. LCD HDTV

2 Answers

I have a HD Visio and I lost my TV remote, my TV is stuck on Zoom Out and I cannot play my new Nintendo WII game becasue the TV picture is to large, I went into menu and could not see anything to zoom,...


Sorry u can't fix this zoomming mode problems without the tv original remote.This tv zoomming mode function it is have it only on the tv original remote function only no where else.Try website like Remotes.com to buy the tv original remote to use.

Sep 22, 2011 | Vizio m420nv 42 in. LCD HDTV

1 Answer

How do you get the crispiest picture on the M420nv TV?


Put the TV in the oven! Nyuck nyuck nyuck. Sorry... seriously though, if you use HDMI to hook up your input source to the set you shouldn't have any problem.

May 17, 2011 | Vizio Televison & Video

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