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Toshiba TV 50L2300U I have sound, but no picture. I can see the screen image with a flashlight, but cannot see lights through the back vents. What part of the TV should I replace?

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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.

Posted on May 11, 2017

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NO BACK LIGHT AND NO AUDIO ON TOSHIBA Model 50L2300U but can see and image when I take a flashlight to the screen


With both the backlight and audio not working. I suspect it's the power supply board.
You'll have to get a TV repair company. Get an estimate before bringing it in, and check reviews on the company.
If you don't know Electronics, don't open it up yourself! There are hazardous voltages even in flat screen TV's!

Jul 17, 2016 | Toshiba 50L5200U - 50in LED-backlit LCD TV

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I have a Toshiba 50L2300U TV which has sound, but the screen is black. I believe it's because the backlight inverter is not functioning. What part needs to be replaced?


Hi Anonymous, The link below is a YouTube video showing how to fix a Toshiba television NO picture GOOD sound, Also there's videos down the right side of the link that may help as well........CHEERS..
https://www.youtube.com/watch?v=WtRuUBS9doE
Toshiba 55HT1U repair No Picture

May 05, 2016 | Toshiba 50L2300U

2 Answers

No picture


If you look very close at your screen (might need flashlight here), do you see the picture as a black screen? If so, your backlight may have died on the panel. Replacing the inverter board will fix that right up unless the tube (lightbulb) has burnt out instead of the board. Both are replaceable.. Check it out.

Aug 17, 2014 | Dell 221-9495 W5001C 50 INCH PLASMA TV...

1 Answer

Possibly fried screen



This is probable the lcd backlight inverter. If you have sound then look at the screen up close with a flashlight and see if there are images. If you can see images then the back light has problems and it is most likely the inverter.

Nov 18, 2013 | Toshiba 26LV610U LCD TV

1 Answer

My tv sound is working but there is no picture can u please help thanks


With the tv on place a bright flashlight against the screen. Look for moving image around the flashlight. This show an image is getting to the screen but you need a back light to see it.

For an LCD tv you need to replace the back light inverter board.
Since you did not give a make and model I can not help locate the board. You can do it.

Mar 04, 2011 | Televison & Video

1 Answer

47inch toshiba lcd tv (HL167) black picture, but


Best to replace both at the same time . Yes they are easy if you can find the parts.

Dec 15, 2009 | Toshiba REGZA 47HL167 TV

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