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Hisense LED LCD TV, Model 50H5C NO Video No Sound

Hi my tv has no picture and no tone. When I opened the TV I see that TV has no backlight and using the flashlight test I can see the Hisense logo appearing when I turn the tv on and one more thing there is a red light on the mainboard when the tv is on.

Posted by G Morina on


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Your LED backlights are bad and need replacing, it's something you can do yourself but look at some youtube vids before attempting to do it, the panel is extremely fragile on this model set, be careful handling it or it will break then the TV is junk and the money spent on lamp strips is waisted. Also match the old strips to the pictures of new ones as this model uses 2 styles of strips, best place to buy them is

Posted on Sep 13, 2021


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I have a Hisense television with no backlight, no light in front when checked with flashlight.

Hi Henry, since the tv is not turning on to check for any video in the background then it gets a bit more complicated to pinpoint where the failure might be.
This TV has a power supply and main board combined in one board. Replacing the whole circuit board might fix it but it could also be defective LED's strips.

Let me know if you require further assistance.

Hisense 58R6E no sound no picture?

This model had a lot of backlight issues with the lamp strips being bad, order a new set and install them and it will work again, but be careful handling the panel, it's VERY fragile

LCD tv Hisense model 50K23DG. No picture, No sound, No backlight. Voltage all look good. When I press power, the red light flashes 6 times. I am suspect its an LED failure.

Hello Kenpappas, for what you describe, it would seem like a backlighting problem
questions if you can have a bad led ?, if many times a Led, is the one that proboca the failure
The correct solution from my point of view is, replace, all the Leds
As it is not practical to replace each led in the strips
It is more practical and simple, replace the full strips of leds
I send you a video, in which they show, the procedure of replacing the LED strips on a Hisense TV
I hope you can solve the problem
Greetings Franco Dosil

Hola Kenpappas, por lo que describes pareceria problema de retroiluminacion
preguntas si puedes tener un led mal?, si muchas veces un Led, es el que proboca la falla
La solucion correcta desde mi punto de vista es, reemplazar, todos los Leds
Como no es practico reemplazar cada led en las tiras
resulta mas practico y sencillo, reemplazar las tiras completas de leds
Te envio un video, en el cual muestran, el procedimiento de reemplazo de las tiras de Leds en un televisor Hisense
Espero que puedas resolver el problema
Saludos Franco Dosil

Tv has sound but no picture

Check the backlight circuitry

I have a hisense tv Model # LTDN42V77US I have sound but no picture. When I check for backlight, I can see some for only a couple of seconds, then they go out. Is that my problem? (backlight)

It is a common problem for the Hisense TV, the problem is defective back lights ASSY, you need to find the burned, or shorted LED diodes on the defective strips & replaced it (them).

My hisense led LCD TV has no picture but has good sound . Did flashlight test. It has no backlighting. If i replace the main board would that likely solve the problem? Model is 50K20DG.

Don't waste any money on this poor quality TV. The backlight is not working and can't be easily replaced without a new LCD panel, which is too expensive a repair. Stick to reputable brands/manufacturers when buying TVs.

On my Hisense 50K23DG LED TV, I have sound but no picture.

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Black screen but i do have sound

HelloCheck the backlight inverter board. If it has damged, most common fault to LCD TVs, there will be no backlight to the LCD screen, and will look black. Your tV has sound output without picture. This means that all other boards ar functioning well. Check the backlight inverter section and CCFL tubes used in backlight assembly. OK.
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