Question about Vizio 42 in. LCD TV

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Hi. I have a M420NV everything works but no sound

Have tried every thing out the book also the advice of the side knop . Nothing.

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Please specify what source you are trying to connect to the TV, and what method of connection you are using (HDMI, Component Video, or Composite-RCA).

Posted on Nov 26, 2014

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1 Answer

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at www.reliable-store.com info that cover everything from wiring diagrams, electrical diag, fault/error codes, troubleshooting, service/repair/operation/maintenance info, PCV, etc.
that'll be all you need, without doubt.

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Hi,my powersteering pump is making a whining sound so i changed it with a new one and ,i was doing everything by book but stil the same problem, can somebody give advice? Polo classic 16i 98model


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Wel the Vizio Tv lost Sound.


Check whether the audio is muted by accidently. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, 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. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Nov 07, 2014 | 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 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

I just purchased a brand new M420nv 42 HDTV LCD LED and turned it on for the first time & the screen was white with blue vertical lines (very similar to a UPC bar code) on the left side of the screen. ...


For sure a defect. You are looking at a T-con board that is faulty. Return immediately and get a different one. If it's within 30 days just swap out and avoid having to wait for a warranty repair!


Please rate if this helped :)

Mar 09, 2011 | Vizio m420nv 42 in. LCD HDTV

1 Answer

Everything works except the cooking part/no heating/turntable not turning, help!


hi there,

can you provide the brand and model # off your microwave please?

thanks

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Zooming in.


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Broken knop


sounds like you got milked buy another

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druk middelste knop ,nr verschijnt !
druk ronde knop rechts,
druk ronde knop naar beneden tot WISSEN verchijnt en druk dan ronde knop rechts en kl is kees

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