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Repair guides and support for your Toshiba TV.

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dim light and No picture on the display

I have a Toshiba TV 55 inch And everything on it works completely fine and it’s just showing me a dim light and No picture on the display this is my TV model (55LF621U19) please help i bought a new Motherboard and Power board and ribbon cable But nothing is working help me

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Hey, you remember me up to know I can’t find a part anywhere and before you tell me eBay in those places again, they don’t have it

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@jaygamer1 that sure sounds like a failed backlight array. Turn your TV on and use a flashlight and shine the beam at an angle against the screen. Do that in a darkened room. See if you can make out shadows or shapes or even the Toshiba splash screen. If you do, then it is your backlight that has failed.

Your TV uses 8 Backlight strips and are available for a cost of around $USD60 Not a terribly complicated job but you do have to disassemble your complete panel. Let us know what you find out when you do this.

Update (04/03/24)

@jaygamer1 awesome. Since you have sound and the backlight, you can try a new T-con board (if it has a dedicated one) or a Tape-off. Something like shown on here

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It’s not the backlight all my back lights are working completely fine

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This TV models don’t have a T-con board And what is the tape-off plsss help

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It’s not the backlight all my back lights are working completely fine

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@jaygamer1 correct. That is why I suggested aTape-off. Give it a try and it does work probably 3/4 of the time

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This TV models don’t have a T-con board And what is the tape-off plsss help

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