Question about Vizio E550i-B2 55" LED TV 1920x1080, 120 Hz, HDTV

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Hi I have a VIZIO E550i-B2 the TV has no pictures not sure if it has backlight but it does have Audio the only way to see picture is to shine a flashlight on it.

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The Knight

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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. 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. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on Feb 19, 2017


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Good morning. I have a Vizio e550i-b2 with no picture or sound but I did the flashlight test and I can see picture. Any idea what I need to fix my issue. thank you so much

This model develops bad solder joints on the connector between the power supply and the led driver board and loses backlighting. It's hard to believe, but the whole connection goes bad. All those pins supply only 24v and gnd. Resolder all of them and the tv will work.
It's the connector between that large yellow board (p/s) and the center green board (led driver).


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Fixya does not sell replacement backlights.

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Could be an open internal fuse or power supply failure

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One or more of the LED backlight strips behind the LCD have failed. Difficult and sometimes expensive to fix.

Jul 08, 2016 | Vizio E550i-B2 55" LED TV 1920x1080, 120...

2 Answers

I have a Vizio E550i-b2 55 LED TV. I have no LED backlight. When I hold a flashlight to the screen I can see the images and I have sound. I was going to replace the LED driver? Thoughts??

U are on the right track - problem is caused by the board that drives the backlighting - the inverter board.

If you can get the number for the board it may be available on the cheap on ebay.

May 03, 2016 | Vizio E550i-B2 55" LED TV 1920x1080, 120...

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