iFixit - Answers With Device "Television"

LG Television: LG TV - powers on, but black screen after LG logo, backlight is on

Tue, 18 Nov 2025 14:28:15 -0700

Hi guys,

A few days ago my TV screen suddenly went black and I don't quite know what to do.

Basically, if I turn it on the LG logo will appear for about a second or so and then the screen goes black. although backlight stays on. The only button on the remote that does anything is the on/off one.

Called up 2 tv repair shops and both told me almost straight away that it sounds like the panel is dead and I need to basically replace the whole screen (a $3,000 repair), which I don't quite believe.

When I took the TV off the wall and tried turning it on again a few days later - it worked fine for maybe 10 seconds and then the screen went black again.

Maybe there is a loose connection somewhere or something.

Any ideas? I hope there's something I could try before I throw it away.

The model is LG 70" UH635T, I could find it in the list so had to choose a random LG model when posting this question

Thanks!

⟐ Commented Kasım 18, 2025 at 14:28 GMT-7

LG Television: My LG TV 55lv5500 suddenly turn black with no sound or picture.

Sat, 04 Jun 2022 17:04:27 -0700

My TV turn black with no sound or picture. The power light is on. I openness the back cover and it seems all capacitor are in working order. Do I need to replace the BU board or power supply

⟐ Commented Haziran 04, 2022 at 17:04 GMT-7

Sony Bravia 40" LCD TV: My red standby led blinks twice when I try to turn on my tv.

Wed, 06 Dec 2023 19:29:14 -0700

The standby led (red) blinks 2x

⟐ Commented Aralık 06, 2023 at 19:29 GMT-7

Sony Bravia 40" LCD TV: No red light - no power at all.

Sun, 23 Oct 2022 17:03:34 -0700

Suddenly our TV won't turn on. The red light that is normally on when the TV is off is also not on.

⟐ Commented Ekim 23, 2022 at 17:03 GMT-7

Vizio Television: My tv went black but has sound what’s wrong

Sat, 23 Aug 2025 21:42:25 -0700

I was watching tv and my tv went

Black I can still hear my cable playing

⟐ Answered Ağustos 23, 2025 at 21:42 GMT-7

Samsung 60" LED TV UN60FH6003FXZA: Why does the sound keep cutting out?

Fri, 02 Aug 2024 09:15:31 -0700

Watching tv,any channel and/or movie,sound cuts out constantly for 3to5second intervals

⟐ Commented Ağustos 02, 2024 at 9:15 GMT-7

Samsung LA40R81BD 40in LCD TV: picture on screen looks like a negative picture

Sat, 17 Feb 2024 13:28:10 -0700

picture on screen looks like a negative picture of a photograph

is this repearable

=== ===

⟐ Commented Şubat 17, 2024 at 13:28 GMT-7

Panasonic Viera: Sound but no picture.

Fri, 16 Dec 2022 09:42:46 -0700

My Panasonic Viera tv suddenly has sound but no picture.

⟐ Answered Aralık 16, 2022 at 9:42 GMT-7

Samsung Television: Why does accessibility shortcuts keep poping up

Thu, 25 Dec 2025 18:19:36 -0700

Accessibility shortcuts keep popping up on my 70in tv i powered it off and it turns back on the same

⟐ Commented Aralık 25, 2025 at 18:19 GMT-7

Samsung Television: Red standby light blinks once, TV won't turn on, Samsung LED TV

Sat, 30 Nov 2024 08:46:10 -0700

Hi there,

I have a Samsung 55" LED Smart TV, model number UN55H6350AF. The TV when plugged in, will have the standby red light on solid. When I try to turn the power on, the red light will flash once, then stay solid again. The TV will do nothing, I hear no sound like the TV is even trying to power on, nothing.

My friend took the TV to a local repair shop, and the guy figures the issue is with the LED strips and quoted a insane price to repair the TV. This TV is just two years old! I was hoping someone may have some insight to this issue so I can look for parts to repair the issue.

Thanks for your time and knowledge!

Ryan

I added to your diagram to show as to what I measured, hopefully this will help you :)

Thanks,

Ryan

⟐ Commented Kasım 30, 2024 at 8:46 GMT-7

Sanyo dp50747 Plasma TV: powers up no picture or sound

Thu, 04 Oct 2018 06:36:04 -0700

powers up green light comes on and screen has a low glow but no picture or sound

⟐ Commented Ekim 04, 2018 at 6:36 GMT-7

Sony Bravia TV 55'' ultra 4k: YouTube giving an error 'please check your network connection'

Sat, 24 Jun 2023 09:16:51 -0700

Hi I just connected my Sony TV to the Internet three days ago. YouTube was working fine the first day. And now it is not working. It keeps giving me the error message 'please check your network connection' everytime I try to get on that app. I checked my Internet connection, I am able to get on Netflix without any problems. I also switched off everything unplugged and replugged the wires, and still unable to get in YouTube app on TV.

By the way, YouTube works fine on the other laptops and phones.

I did do photo plus sharing from my phone to TV end of the first day. Could that have to do with any of this error?

I'm posting for the first time, don't know how this site works, I hope I get notified.

⟐ Commented Haziran 24, 2023 at 9:16 GMT-7

LG Television: Left side is too dark. How to fix it?

Wed, 27 Mar 2024 22:29:18 -0700

Hello,

I got a LG 42LG5000 TV in 02/2009. In 02/2011 (just after the TV's warranty expired), when I opened the TV to watch something, I saw that the left side of TV was much more darker than the right side.

As manufacturer and repairers say "left LCD panel is gone, replacement price is much more then TV's price, so throw the TV to trash" but I'm not convinced actually because of the following;

Till a month ago, when I shake the TV or wait a little bit, the left side was coming back to normal but in last month, it doesn't.

I'm attaching the pictures. So you can see the problem and may give some advice to me.

http://www.zpnd.com/tv/DSCF7073.JPG

http://www.zpnd.com/tv/IMG_0753.JPG

http://www.zpnd.com/tv/IMG_0754.JPG

Thank you.

⟐ Commented Mart 27, 2024 at 22:29 GMT-7

LG Television: Unable to support USB device

Mon, 25 Nov 2024 20:23:21 -0700

My TV unable to support USB device

⟐ Commented Kasım 25, 2024 at 20:23 GMT-7

LG Television: TV takes hours to turn on

Thu, 18 Mar 2021 09:29:50 -0700

My 42inc LG HDTV 1080 is taking hours to tun on, sometimes it only takes 20 minutes but today I been trying since noon time

⟐ Commented Mart 18, 2021 at 9:29 GMT-7

Vizio Television: horizontal line across screen.

Sun, 19 Mar 2023 18:30:35 -0700

Vizio E5001 HDTV. Picture has horizontal line across screen. Lower screen appears to be slightly out of focus. Narrow strip across top of screen looks to be bottom of picture.

Is this an adjustment problem of hardware issue?

⟐ Commented Mart 19, 2023 at 18:30 GMT-7

LG Television: LG 47LB5900-UV TV display is flashing / flickering on and off

Mon, 06 Oct 2025 07:20:25 -0700

I have a LG TV 47LB5900-UV, which is about 1.5 years old and the screen suddenly started flickering on an off. I was watching TV on it and suddenly the display just went off, the flashed on then back off. At this point the display is primarily off, but flashes on for half a second, then back off. This is happening with the initial screen, on screen menu, and with any input. I opened the back and reseated the internal cables between the 3 boards, but the issue remains. The connectors on each cable are somewhat recessed, so I am not sure of a good way to clean them.

The TV doesn't seem to be completely powering on and off, just the screen is flashing on/off. Whatever is would normally be displayed is just flashing on briefly until I turn the TV off.

Please advise how to test and further isolate to which component should be replaced.

Tcon? Power board? Main board? Cable?

⟐ Commented Ekim 06, 2025 at 7:20 GMT-7

Vizio Television: My Vizio smart tv won't show up in the Vizio smartcast app device list

Tue, 30 Apr 2024 13:18:00 -0700

Hi, me and my bf's family have a Vizio smart tv in our living room. I have no idea if it is an e, m, or p series.. Whatever that means.. And it did not come with a tablet that it apparently can come with? We bought ours at walmart. It has smartcasting that I am aware of but the problem is.. I can download Vizio smartcast app on my phone but our Vizio smart tv won't show up in the device listing... I've seen several walk throughs of people demonstrating how to smartcast to your smart tv wirelessly and I followed the steps exactly to the t.. But my problem is.. None of the walk throughs help people when it comes to the smartcast displaying "no device found", when clearly both my phone and tv are wirelessly connected to the same wifi!! So the main question is.. How do I help my vizio smartcast app find my Vizio model D60-D3 smart tv??? I have searched website after website on how to troubleshoot this elusive problem but to avail.. No solution.. So I beg you, please help me to the best of your abilities because the Vizio smart tv we have can stream youtube from my phone just fine.. But trying to stream movies from terrarium tv off my phone to the Vizio smart tv is like pulling teeth! It should not be this difficult to figure out!! I'm in my late twenties for god sake! I should not be having this much trouble..

⟐ Commented Nisan 30, 2024 at 13:18 GMT-7

LG Television: The audio in my lg tv stopped working for some reason.

Fri, 16 Jan 2026 02:53:00 -0700

Hi,

I have had my LG smart tv for about three years now. The sound for it recently stopped working yesterday feb 20th. I looked online for several solutions to solve the issue but nothing seems to work. Model number. 42LB5600-UZ.AUSDLJM.

Can anyone help me solve this issue if you had it at one point with the same brand?

Thank you

⟐ Commented Ocak 16, 2026 at 2:53 GMT-7

Hisense Television: Why won't my television power on

Thu, 27 Jul 2023 15:09:12 -0700

My Hisensense 5020DUS blacked out botht sound and picture without warning. When attempting to power the unit on by either the remote or power button. the red indicator light blinks 6 times and the blinking light disappears and the screen remains dark with no sound.

⟐ Commented Temmuz 27, 2023 at 15:09 GMT-7