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Vizio E550i-b2 has no picture

Vizio E550i-b2 will not power up. Power light comes on for about 5 seconds then goes off - no picture or sound. All three boards that are visible with back removed appear OK (no breaks or blisters). Any ideas?

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Could be an open internal fuse or power supply failure

Posted on Aug 16, 2016

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Posted on Jan 02, 2017

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My VIzio E550i-B2 TV has no picture and no sound. Do I need a new power supply board?


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My vizio e550i-b2's power light will turn on for about five seconds before dimming and shutting off completely. All the while the screen is black with no sound. What part(s) should be replaced?


There is no way to know that until testing is done per the repair and service manual. Anything I suggest would be a guess, and it is your money I could waste..

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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.

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2 Answers

Visio E550i-B2 Have sound but no picture. Did a flashlight test and I see an image. Google search results point to bad LED driver but I would like a second opinion. Thanks


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.

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1 Answer

Vizio TV has sound but no picture


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.

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