samsung tv un55nu7100 no picture backlight replacement

[@ConceptJunkie]

Upvoted for the content, but also because of your assistants, who did a great job. I'm going to attempt this repair today.

[@alphaomega1969]

After seeing you and your kid fixing or taking the tv apart, it encourages me to do it. Thanks in advance bro!

[@SOSfixElectronics]

You can do it!

[@Paunchline]

Although it has been a while since you posted this video, supported by the youthful but helpful narration, it has given me the confidence to attempt replacing the LED strips on an otherwise perfect flatscreen discarded at the community dumpster. So far, detaching the back panel is proving to be quite difficult.

[@k1ngdeebo]

Very cool guys open up a service .. for tvs not many places for TV repair these days ..

[@djdrocco]

Thanks, folks! This was more helpful than you know. I just scored this exact model "broken" TV for $30. I already suspected a bad backlight, since it powers up normally and produces sound, and that's exactly what the problem is. This video will help avoid making any big mistakes when I order the replacement backlight. Cheers!

[@SOSfixElectronics]

be careful removing the screen watch alot of videos before you do it

[@djdrocco]

Yes, thank you, you're definitely right. I've done a few screen replacements before, and haven't screwed anything up yet... but this will be the biggest one yet, and the only one I'm keeping for myself!

[@djdrocco]

The backlight replacement went well! I had to refer back to your video to see if you had to deal with a damaged edge of your fresnel lens. You did, but mine was way worse. I had to dig out burnt bits and sand it smooth. It was partially cracked from the heat, too, so I have a bright spot near the bottom of the TV. No big deal, really. Thanks again!

[@SOSfixElectronics]

@@djdrocco common issue the burned reflective plastiglass by the leds and i do the same cleaning it and shold works right. But not perfect. Sometimes may have a big cracks that time will needs a replacement glass

[@scorpius319]

@@SOSfixElectronics Thanks!!!

[@MohammedAneek]

Thanks a lot for you and all the other youtubers. I managed to watch these videos and fix my TV for just 1/10th of the repair cost.

[@Kaars]

Thank you, I successfully changed the back-lights of a TV like this.

[@mustafaaltayb7467]

This is really helpful thank u very much 👍🏻

[@goldberry51]

Thanks for the video :) got the job done :)

[@linksrepair8078]

sosfix thanks for the video,the strip backlight are easier to replace than the one you just replace,i`m in norway where are you living?(country).i like the way you`re teaching your son he will be a good technician when he grows up

[@SOSfixElectronics]

in florida

[@bobsoft]

I like to use an old credit card to slide along to pop off panels when my little guys are around.

[@kuzofreak9617]

Can I turn that glass panel behind the screen around? The one with the burn marks? I can't get the burn marks off and I think flipping it around will help refract the light?.

[@aneighbor8374]

Great informative video! I have the same tv but a 65" un65nu7100, when you plug it in, the "Samsung splash screen" shows, then the screen goes black for 4 or 5 seconds(off), then the screen lights up but black, no sound, no picture, and stays that way until i unplug it. Im not sure, but i feel that the leds are fine given the splash screen is clear and working fine, but im not a expert. Any suggestions would be greatly appreciated, as i like working on things, and dont really want to buy a new tv.

[@miguelangelperez3798]

The screen goes off because maybe some LED is burned, so to protect all the panel the system shutdown all the panel ... But it's produced by a LED damage in the panel .. did you find the solution?

[@Fraja96]

Hello, did you measure the volts on the LED power supply output, that 2 wires going on LED strips? I get 200 VDC from both on output, dunno if that's right, sounds a bit too much to me.

[@SOSfixElectronics]

the led output voltage should be marked on the power board

[@HK76931]

Hey did you have to remove those metal wires on the sides and top? I don't think you did and I can't see any purpose for them but saw them do it on the shopjimmy video.Just trying to figure out if I even need to waste my time pulling those

[@SOSfixElectronics]

the led strips. i didnt replace them

[@mrblobby8534]

Was wondering if your new installed backlights have lasted?

[@SOSfixElectronics]

yes

[@mrblobby8534]

@@SOSfixElectronics thank you for the reply.. hopefully my reflector is not melted ..

[@lucasrocha4329]

This acrylic always burnt when led's bar is damaged ?

[@mbt360]

I have same problem with same model 55 inch from where can buy the led?

[@SOSfixElectronics]

ebay amazon aliexpress

[@zheirrazane]

What is the compatible backlight model for samsung curve ua49nu7300gxxp

[@SOSfixElectronics]

take the tv apart the part number should be marked on the old led strip,

[@kegelaar]

I have a 15 cm 'shadow' over the screen from top to bottom cq 20 cm from the left. Do you know if this is fixible with the led strip replacement?

[@rolandomota1875]

Can you please share the link of where you got them

[@freak42024]

Hello sir. Do you have the website for the leds

[@SOSfixElectronics]

ebay amazon shopjimmy

[@teena192]

Hi! Was there only 2 total led strips?

[@SOSfixElectronics]

yes this model has only 2 led strips in the bottom

[@PilotVinProductionz]

​@@SOSfixElectronics just to confirm you only need 2 led strips for the 55nu7100?

[@stephenmohammed3970]

I have this same model tv.. samsung 55 led.. the tv cuts on and off with a flashing standby light.i hear a start up sound and see a blue screen when this happens.. when I disconnect the main board from the power board the backlight alluminates.. any suggestion what may be the problem?

[@SOSfixElectronics]

sounds like power board + backlight are good, your problem between mainboard and screen ( no tcon in this model) try to cover some traces on the flex cables thats going to the screen, see if you get some lines or even some picture, i think i faced some of these series with faulty sceen

[@yvebonye3775]

Bonjour j'ai le même téléviseur ou trouvé ces deux barres led merci

[@Amin_2k]

Be careful when doing this. i just attempted it and the glass broke in the process. be very careful with the glas panel and LCD panel. Its a 2 man job for sure, dont try it alone like i did. But besides that it did work, but now i have a broken lcd unfortunately

[@hakhoonkim6638]

Hi, can I know the LED strip size(cm)?

[@SOSfixElectronics]

sorry i dont know

[@buder5116]

well my LCD panel decided to crack time to trash that tv and never buy samsung again but the backlight replacement worked >_>

[@SOSfixElectronics]

sorry, the screen is very fragile

[@michaelproeber1953]

Backlight can go bad on any brand, it's a matter of if you keep the backlight in settings on 100%

[@BuenoMcgurski]

Wtf this looks tedious as hell, whats with the fast forward portion, I have no idea what is being done and why. I have lost interest in fixing my tv.