I have an LG 55 inch smart tv, 55UK5090PUA. The screen suddenly went from a solid picture to a dimly lit grey screen. There was no transition where it was intermittent - it just stopped displaying a picture, although when I pressed hot buttons to get to a streaming service, I could hear the sound.

After trying the reset/troubleshooting, I replaced the Main Board with the same replacement part (EBT65513202), plugged everything back in, with the same results. I guess now I have a back-up.

Does anyone have a suggestion on what I should check next (and how)? With the back off the TV, you can see the back lights on for sure, so I believe there is juice moving through the power board.

Thank You in advance,

Evan

⟐ Answered March 16, 2025 at 13:04 MST

I typically noticed during gaming and non animated shows. I've swapped HDMI cables, tried all available ports, done a factory reset, and used different video game consoles. Is there a fix or this tv shot? Thanks.

⟐ Answered April 16, 2022 at 17:51 MST

⟐ Answered January 30, 2024 at 7:36 MST

Issues started after watching TV for several hours. Has never happened before. Green, horizontal lines flicker frequently on the screen while playing and while pauses. Less frequently, the screen will flicker to black for less than a second and the sound will also pause. Then it will return to normal.

⟐ Commented February 04, 2025 at 16:27 MST

Hi
My LG 32NL575v TV's screen no longer works since a recent thunder storm.
The sound is OK but nothing from the screen, not even faint when checking with a flashlight.
I have the back off and there's no visible damage to any components. It could be the T-Con board and replacements are available. Just wondering if there's a way to test it before buying.
Any help appreciated.

⟐ Commented October 03, 2024 at 3:48 MST

I'm having an issue with my TV. To preface, I'm relatively tech savvy but not far enough when working with electronic components so I may need a little guidance.

This TV gets used from time to time and is never moved. One day I turned it on and I got no image and some vertical white lines.

Clicking the buttons on the remote gives me audio so things are happening but it's not showing me any of it.

I've taken off the back of the TV to look for anything obvious but I'm not even sure where to start here.

I was hoping you guys could have more insight than me.

I've included some images of what the turned on TV looks like as well as some of the elements on the back of the TV.

Thanks!!

Worth noting.

I turned the TV on with the back opened up.

This unit on the power supply chip is wayy hot and making a clicking noise after letting the TV run for a bit.

The TV also automatically turned off. Could be software related though (after 15m of no activity)

⟐ Commented October 23, 2022 at 10:05 MST

⟐ Answered July 05, 2022 at 3:58 MST

⟐ Commented June 05, 2024 at 10:43 MST

⟐ Answered November 03, 2023 at 15:55 MST

⟐ Answered January 07, 2026 at 22:52 MST

⟐ Answered April 01, 2025 at 7:39 MST

⟐ Answered March 23, 2024 at 8:16 MST

Hi,

Many thanks for the reply.

I have already tried [ressing cables in image 3 but there is no change. I hope I have pressed right cable.

Also I see the lights are symmetrical. Does it indicate fault somewhere else?

Regards

Girish

⟐ Edited by author November 04, 2023 at 0:57 MST

display

⟐ Answered September 02, 2023 at 6:21 MST

⟐ Commented August 04, 2025 at 19:40 MST

⟐ Edited by author May 16, 2025 at 11:55 MST

50" LG Smart TV

Software version: 05.50.04

⟐ Commented April 26, 2025 at 17:40 MST

⟐ Commented September 24, 2024 at 11:47 MST