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I have a vizio E550i-ao with a black screen. I do have sound. ITI says power supply board but shop jimmy says it could be a failed led strip

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6ya6ya
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Posted on Jan 02, 2017

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gopakumarg43
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SOURCE: I have a Vizio e470i-ao. Before black screen, it lightly faded across the middle. Is it the LED strips, or the LED driver failing?

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://electro-medical.blogspot.com/
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. 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 Apr 29, 2016

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gopakumarg43
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SOURCE: Vizio e550i-b2

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. 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 16, 2017

  • 1527 Answers

SOURCE: ordered Vizio 056.04167.0001 Power Supply / LED Driver for E550I-B2 the sound worked before switching it out, but picture did not. Installed part & picture only stayed on for a few minutes & no sound.

hi the led in the panel may have shorted out thanks

shaun

Posted on Mar 27, 2017

  • 14 Answers

SOURCE: I have a Vizio E550i-B2 and the screen went blank, I do still have sound. I did the flashlight test and I can see the screen very dim. Would this be the LED driver board or power supply board?

Hi,
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 the pins on the power supply half of the connector and the tv will work.
It's the connector between that large yellow board (p/s) and the center green board (led driver).


5_8_2017_3_54_57_pm-4geh5w0df5ixw3m0y3nq5uyg-2-0.jpg

Posted on May 12, 2017

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Vizio sv471xvt. Sound works, black screen, flashlight test shows image. What is the most likely cause?


Backlight is failed. 2 possible common causes

Burned out led strips ( not much confidence in this one tbh) usually it blinks on and off fast but could be the brand of tv handles the failure differently.

Power supply board had failure in led backlight section , bad caps might be obvious and fix it , or if you are not handy and wanna throw 50$ at the problem , my guess is replace the power board.

Once the tv is open you can check power to the led strips at the jacks on the power board with the leds removed. Remove the plug and check if power is being supplied by the board. (see troubleshooting / repair videos for your tv model and as always if this sounds like chinese to you , call for service as poking around a powered tv is dangerous if you are novice. )

Feb 13, 2018 | Vizio Televison & Video

2 Answers

Vizio 55 inch TV "Vizio E550I-B2" is Darker on the left viewing side, replaced the Power Supply board. And the Screen is still dark on the left side. Any suggestions?


It is a common problem for this TV, it uses a Sharp LED display panel. The problem is the data buffer IC inside the panel ether shorted, or burned open.
Vizio offers a extended exchange warranty if you have the original sale slip.

For more information, you may contact Vizio directly.

Apr 24, 2017 | Vizio Televison & Video

2 Answers

I have a Vizio E550i-B2 and the screen went blank, I do still have sound. I did the flashlight test and I can see the screen very dim. Would this be the LED driver board or power supply board?


Hi,
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 the pins on the power supply half of the connector and the tv will work.
It's the connector between that large yellow board (p/s) and the center green board (led driver).


5_8_2017_3_54_57_pm-4geh5w0df5ixw3m0y3nq5uyg-2-0.jpg

Apr 16, 2017 | Vizio Televison & Video

1 Answer

I'm trouble shooting my Vizio e550i-2b It has power no backlights, image can be seen with a flashlight, I've replaced led driver board and problem persists, do you suggest main board next?


If you can see an image with a flashlight and you can control the tv with the remote then the main board is not the problem. You've replaced the LED driver board, so that leaves the LED strips inside the LCD panel as the likely problem.

Feb 11, 2017 | Vizio E550i-B2 55" LED TV 1920x1080, 120...

1 Answer

Vizio e550i-b2


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://electro-medical.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. 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....

Dec 27, 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...

1 Answer

I have a Vizio e470i-ao. Before black screen, it lightly faded across the middle. Is it the LED strips, or the LED driver failing?


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://electro-medical.blogspot.com/
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. 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.

Apr 29, 2016 | Vizio Televison & Video

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