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My 70 in vizios backlight is going out on some areas wat does that mean and is it a easy fix

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David Spradling

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Usually bad screen

Posted on Nov 29, 2020


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FIGURE OUT WHERE TO START DIAGNOSES try this video 1st.sounds like your problem.

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What component or components need to be replaced to fix the tv?

Try replacing the inverter board which powers the backlights on set.

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JVC LT-42E910 LED flat screen TV, backlight comes on, menu box is displayed but after about 5 seconds backlight goes out. Picture and sound still working but no backlight. How can I troubleshoot?

jvc tv backlight Questions & Answers - Fixya > Forum > Tags
Get free help, tips & support from top experts on jvc tv backlight related issues. ...JVC LT-40SX6AT flat screen. Was watching TV ... ...jvc logo, has sound but nopicture Backlight is defective. I suggest ... Question about LT-42E910 42" LCD TV.


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Must See TV FIX EASY COMMON Samsung TV Repair Repairing LNT LCD ... LNT KDL Sanyo ln FLATSCREEN TV REPAIR FLAT SCREEN FIX - Hear Clicking .... i have a JVC LT42E910 WITH a cracked screen. there are all these color .... Vizio LCD Powers on with backlight, Wont power off, No video ...

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Vizio vw47lfhdtv10a, screen went black,still have audio and with a flashlight I can see images. ages.

If the picture is there but dark that means that your backlight has failed. Based on the age, this set likely uses a Cold Cathode for the backlight. The driver boards for these do fail over time and unless the tubes themselves have failed, likley a new backlight driver board will fix the problem. Check Ebay as a good source for parts.

Aug 03, 2015 | Vizio VO Televison & Video

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I have a vizio m421vt when it comes on just the vizio lights up , black screen, can't get sounds, no backlight, buttons on tv dont eork have to unplug from wall

Same thing happened to my Vizio TV. Fixed under warranty, replaced the motherboard. There are actually only 2 boards in the thing, easy to fix.

May 13, 2015 | Vizio Televison & Video

1 Answer

How to fix the backlight

wow, iv seen that before, to us it means your panel is out.
sorry, if i am not mistaken, the backlight is built into the panel.

Sep 08, 2012 | Vizio E320VP 32" LCD TV

1 Answer

26" LCT HDTV Backlight Problem

It can be that the inverter is not getting the 24vdc fromt he power supply module, check for that first, you can check it at either the power supply termninals or at the inverter board. Look to see if the power supply has any leaking/bulging top caps. Modules are easy to replace, fixing it down to component level is not so easy unless you have proper tools an electronics knowledges.

Power supply and Inverter bd:

Learn more here:

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