Question about Vizio Televison & Video

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I have a Vizio Model E500I-B1 that has a black screen. Sometimes when I have it unplugged for a couple of days I'll plug it back in and the picture will turn on for a second (Vizio logo shows) then black screen. I dont know if its the power board or the led strips are bad. Please help.

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Larry

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  • Vizio Master
  • 3,898 Answers

What do you have for voltages on the LED test points?...are they the same with the lamps plugged in or out?

Posted on Oct 18, 2017

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5 Related Answers

Al Kizina

  • 170 Answers

SOURCE: My Vizio E500i-B1 won't turn on, replaced the power board, still won't turn on. 24V pins are only putting out 15V, PS-On is outting out .3V. What can I check next? Please help! Thanks!

Disconnect all the circuit boards from the power supply board and test the voltages again. If the voltages are correct, connect the other boards one at a time to see if one is dropping the voltage on the power supply. If you find one that lowers the power supply voltages to what you read before, that may be the problem board.

Posted on Jan 03, 2016

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gopakumarg43

The Knight

  • 76823 Answers

SOURCE: Vizio E500i-B1 won't power on unless power is cycled. After unplugging/plugging it back in it will work but it may need the power cycled a couple of times to get the audio and remote to work reliably.

Fault to the main power supply regulator section. Either it will be a separate board, or the part of main 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://electro-medical.blogspot.com/
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.

Posted on Jan 25, 2016

gopakumarg43

The Knight

  • 76823 Answers

SOURCE: I have a Vizio E500i-b1 50" led tv and if I turn it off I can not get it to turn back on for hours/days....any help is appreciated!

Fault to the main power supply regulator section. Either it will be a separate board, or the part of main 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.

Posted on Feb 10, 2016

gopakumarg43

The Knight

  • 76823 Answers

SOURCE: Vizio E500i-B1 screen jumbled up, can hear sound but picture looks terrible, any ideas what board would control that?

T'Con board fault. Check and replace it. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

Posted on Jul 12, 2016

Testimonial: "Sorry Knight changed board still doing same thing. I did notice the motherboard very hot, you think this could be it? Power supply maybe?"

Lawrence Oravetz

  • 10548 Answers

SOURCE: Vizio e500i-b1 w back light issues. Want to test the LED driver for voltage. my boards are not conveniently labeled. where exactly is the led driver for this? particular set?

Vizio TV No Image Black Blank Screen No Backlights Basic LED... Led drivers are on the power supply board. Here's a video

Posted on Sep 09, 2016

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