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I have a Vizio SV470XVT1A I'd like to fix, but am unsure of which part to replace. The screen has a "flicker", which appears to wipe from right to left.

I've tried doing the unplug/power button reset and also tried turning the backlight setting all the way down. I'm unsure if this would be the main board, backlighting boards, or what. Many thanks!

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  • Master
  • 494 Answers

This is a trace line, in old days this would be a function of the flyback circuit but today it is digital. Could be a bad IC chip may be a poor solder joint. Some components are tough to work with as the controller is small with many solder joints. Sometimes a piece of debris can cause this. Check for PAL setting as this may be off, in the menu. Lastly the timing may be off from a out of spec circuit, clock circuit.

Posted on Jun 30, 2015

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SOURCE: my 32" lcd vizio vx32L turns on there's sound

Have you tried the T-con board?

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its the main board...

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You need change the Main board. You have a micropros. problem.

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techman007
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SOURCE: please can you help me narrow down an issue with

Hi:
This problem is direct and simple, Replace the T-Con board.

Posted on Nov 01, 2011

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SOURCE: vizio e320vl stays onm for 2 seconds and shuts off i have replaced main board and power supply what can i do next?

did you use the same RAM-memory on the second main-board ?try different ram memory, it might solfe your problem.
If it does, your first main-board whill be okay to.

please keep me informed.

Bart

Posted on Jul 22, 2012

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1 Answer

Vizio SV470XVT1A model TV. Power is on, Vizio light is white, but the screen is black, no audio and no backlights present. What is the most likely problem?


Check and replace the T'Con board. It is faulty. If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. 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/
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In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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