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Repairing vizio m421nv - Televison & Video

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Try to download the repair manual to this TV by internet.

Posted on Jul 30, 2013

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What are the symptoms of a bad psu for vizio m550nv


Vizio 0500-0612-0030 Power Supply / LED Board for M550NV

www.shopjimmy.com/vizio-0500-0612-0030-power-supply-...

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How do I fix my VIZIO TV?


Vizio TV Repair - Instructables

www.instructables.com/id/Vizio-TV-Repair/

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How to fix a damage screen for a vizio vf550m


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How do I know if I need to replace the main board?


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1 Answer

Vizio tv model e420vse turns on and then screen goes black. Still has power and sound. If I turn off and back on, the picture will come back for a few seconds and then shut off again. Vizio suggested it...


There are a lot of references on how to repair the LED backlight. If you can source the parts, google search LED backlight repair.

You may wish to read this first: http://www.techlicious.com/blog/un-repairable-vizio-tvs-leave-customers-out-of-luck/

Mar 31, 2015 | Vizio E420VSE 42" 1080p 60Hz LED LCD 2.4"...

1 Answer

My vizio m421nv TV has no sound when I turn it on. Have to turn it on and off a few times before it has sound.


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

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1 Answer

Program Sony rm-vz320 for smart tvs


You do not program the smart TV features in your remote, you use your remote to access and program those featurse on your TV via menus.

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1 Answer

Half screen in blank


Check and replace its back-light inverter board. Contact any service technician. If you wish to get some details, check the site linked here. Surf the site in "MOSAIC" view. It will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/

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How do i fix a vizio 42" tv with a black screen, no sound


THE MAIN BOARD AV BOARD HAS WENT OUT JUT HAPPENED TO ME TODAY

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1 Answer

Video board failure vizio M470NV


Vizio M470NV is an economy class LED TV made by Sharp for Vizio.

The main board in it suffers from a few problems that are actually common for the Vizio LED TVs made by Sharp and based on the same design and built with the same pool of components.

It took time to TV repair shops, but now repair services and possibly even exchange boards are starting to become available.

See here for more details:

http://www.coppelltvrepair.com/p/1354/repair-service-for-3647-0302-0150-main-board-for-vizio-m470nv-smart-led-tv-totally-dead-blinking-endlessly-or-otherwise-failing-to-start

Hope it helps!

Jan 16, 2012 | Vizio M470NV 47 in. LCD HDTV

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