Question about Toshiba 46l5200u 46es 1080p/120hz Led Tv

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How do you change a backlight inverter board on a Toshiba 46L5200U TV?

TV has power but no picture. If you shine a flashlight at different angles you can barely see menu.

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Posted on Dec 02, 2014


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I have sound but no picture

If it's LED or LCD then it's backlights-- just shine flashlight on screen at an angle and see if you can see any movement or bring up menu display and with a flashlight you should be able to see it---as stated above---
Symptom: No picture on screen but LCD TV still has sound.
Solutions: The problem is cause by defective inverter. Replacing inverter will solve the problem---ou cannot see anything at all then it's T-Con board--

Feb 14, 2016 | JVC LT42X579 42-Inch 1080p LCD HDTV

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Why is my replacement LED Power Supply Board not functioning properly?

Power supply board is not the culprit - check out your inverter board which is responsible for the back lighting.

Feb 03, 2016 | Samsung Televison & Video

1 Answer

LG smart 47ln5700 the screen will go black i still have sound but no picture i could make out the picture in some angles need help on what parts i should replace(picture with flashlight on it)

Hi Angela,
The backlight system of your TV has failed. Mostly it is the inverter part inside the TV which makes necessary power for the backlights fails. The power/inverter board needs to be repaired or replaced.

May 26, 2015 | LG Televison & Video

1 Answer

TOSHIBA LED 46L5200U TV where picture stoped working and the volume is working

Check and replace its back-light inverter board. Contact any service technician. Gopakumar Gopalan Google

Feb 24, 2014 | Toshiba Televison & Video

1 Answer

Powers on, no display

Do you have sound? If so, dim the lights in the room and shine a bright flashlight on the screen and see if you have a faint picture. If you have a faint picture, you have a backlight problem. On most of those sets, the backlight inverter is combined with the power supply so that power supply/inverter board will more than likely be the culprit!

Dec 07, 2013 | Vizio E420VA 42 in. LCD HDTV

1 Answer

My Vizio 55XVT1A power on, has sound, but no picture. I changed new power board, main board, T-cond board, but it still same problem. What's wrong with it? Is it anything with inverter board? Than

If this is an LCD tv the backlight inverter is bad, a good way to check it is to shine a flashlight close to the screen and see if you can see a faint picture.
Let me know what you find

Feb 18, 2012 | Televison & Video

1 Answer

Picture does not always come on, sound always comes on, when TV is turned on; some times takes as many as 5 cycles to get picture to activate.

Sounds like inverter boards or backlight boards are defective, there two of them in most Toshibas
and the master board usually dies. If when the tv is on and has sound look closely with a
flashlight shined at the screen you may see movement of the picture, as the screen is most
likely working, just no lights behind it.

Oct 21, 2010 | Toshiba 32C100U 32 in. TV

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

1 Answer

We have purchased 4 Samsung flat screens and love the pictures. However, now one we have hardly viewed at our cabin is going black but the sound still plays. The picture comes back when it is turned off...

This could be bad caps on the power supply board, which feeds the inverter board. If the tv is not used very much capacitor acid tends to dry out and it loses the ability to charge and discharge like they should, kind of like a battery. Depending on the make and model of the set the whole power supply board may need replaced. In some cases though the inverter board can go bad, it lights the lamps behind the panel, its like a ballast for flouresent lights. When the picture goes out shine a flashlight at an angle into the panel and you may see video, if so the backlight is out.

Aug 30, 2009 | Samsung Televison & Video

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