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Need help with Vizio 39" LED TV no picture or sound or back lights and nothing shows with flashlight test

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: turn on tv, no picture no sound, shined light into screen,nothing

Check your connections and scart leads, take them out and put them in again. It may be a loose lead or maybe a faulty lead, swop them over to see.

Posted on Apr 28, 2010

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gopakumarg43
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SOURCE: sound, no picture! already replace the LED Driver, still no picture. did the flashlight I can see the movie just no back light..

Fault in 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/

Posted on May 09, 2015

gopakumarg43
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SOURCE: 47' (sic) LED TV, model number m470vse. Why doesn't the backlight work?

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/
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should trouble shoot. Contact any service technician. The circuit will differ with models and versions.

Posted on May 30, 2015

gopakumarg43
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SOURCE: Ok I tried the flashlight test on my tv and I can see picture and ther is sound and I don't know where is the backlight inventor in my tv how I would know what's wrong if it's back light or led prople

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.

Posted on Nov 21, 2015

gopakumarg43
  • 74377 Answers

SOURCE: no pic no sound, but has a blinking red LED on bottom right stdby

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electronicshelponline.blogspot.com/
http://electro-medical.blogspot.com/
Blinking codes details of many popular brand TVs are given. Surf the site with patience.
If blinks continue without any pause, the main board is faulty.

Posted on Jan 15, 2016

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I Have a vizio E320I-AO 32" TV. The back light and sound have gone. What could be causing the LED and sound to go bad?


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 24, 2016 | Vizio Televison & Video

1 Answer

Vizio e470i-a0 has a blank screen but has sound.


The led strip is faulty. Normally it's comes with the panel.
If you wish to know bout the Woking of back light LED the check the below added link.
www.electro-medical.blogspot.com

Jul 01, 2016 | Vizio Televison & Video

1 Answer

Vizio tv has sound no image


If you can see an image on screen via flashlight test then the backlighting is not working. And the inverter board is the unit that powers those lights ..... So....................

Mar 05, 2016 | Vizio Televison & Video

1 Answer

How do I fix problem with Vizio m550vse LED TV? Flashlight test reveals picture and no back lights are visible.


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.

Nov 20, 2015 | Vizio 55" Class LED 1080p 120Hz HDTV,2.49"...

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