⟐ Commented July 08, 2026 at 21:44 MST

My tv was working perfect last night but when I turned it on this morning the screen was black, I couldn’t see anything. I can hear all the noises he tv makes. Someone please HELP me!

⟐ Commented July 06, 2026 at 9:38 MST

I have a 2022 TCL 75 inch 5 series LCD TV model 75S555 with a display problem that would manifest itself in different ways. Sometimes only the left half of the display was totally black, and other times it would flicker with white lines throughout. During a little troubleshooting I found that the ribbon cable from the TConn board (I think that's what it is. It is centrally mounted and has 1 ribbon cable leading from another board and 2 larger ribbon cables leading toward the bottom of the TV) had some corrosion on 4 or 5 of the pins. I cleaned the corrosion from the ribbon cable and I cleaned the connector as well as possible with contact cleaner. During testing I found that the problem then affected the whole screen. When disconnecting the ribbon cable in question I found that the right half of the screen functioned normally and when I reconnected the cable it would take out the whole screen. The faulty cable led to a board with several permanent ribbon cables which seem to lead to the actual LCD panels, and it also had a "jumper" ribbon cable connecting it to another nearly identical board. When disconnecting the "jumper" I found that the right 3/4 of the display worked normally. So the problem is definitely the board which serves the left-most quarter of the screen. I'm afraid the the LCD panel itself is trashed, but my question is whether this sounds like something that can be repaired. I will attach some photos of the components in question, and thank you all for your time.

Edit 3/17/24

@oldturkey03 advice, I masked off the smaller groups of wires one at a time until the rest of the screen functioned fine. In my case it was the third small group of contacts from the center. Unfortunately I did not take a picture of the tape placement while the ribbon cable end was detached, and I'm scared to touch it again, but I will attach a photo to the original question showing the installed cable and which set of pins I taped off. Hopefully this might help someone else in the future.

⟐ Commented June 27, 2026 at 20:55 MST

⟐ Commented June 26, 2026 at 1:40 MST

I’ve been having this issue with my TCL 55” C70 tv for a few days. There are very thin black horizontal lines coming from the top right part of the panel. They are not static, but intermittent. They appear and disappear at regular intervals and follow a regular pattern.

While the lines are solid black on the right, they tend to become lighter (greyish) to the center of the display. They are not even visible on the left.

Also, sometimes there are only a few lines at the top right, sometimes there are more lines coming down towards the bottom, as you can see in this video: https://www.dropbox.com/s/0bu8alax9nburx...

In the video it appears like a darkening (backlight) problem, but it’s actually specific lines of black pixels. You can see this from a close-up photo (zoom at 100%), black lines on an image that should be consistent blue: https://www.dropbox.com/s/we3hwj8q3x68a4...

Any advice about what’s causing this problem? Any solutions?
Thank you everyone

⟐ Commented June 26, 2026 at 0:15 MST

⟐ Answer edited June 15, 2026 at 20:27 MST

⟐ Answered June 14, 2026 at 21:45 MST

⟐ Answered June 12, 2026 at 3:04 MST

But the last time it didn't start again, it got to showing the four animated circles and got stuck there.

As soon as I plug it in, Android starts without the remote.

I tried plugging it in with the joystick pressed to start the recovery process, but it gave 'no command'.

So I searched and found a firmware, put it on a FAT32 stick, and the firmware installation completed, but at the end, 'error!'

They told me it's because the firmware must match the product code exactly, so I opened the lid and found the product code.

Need it for the model "08-RT41V02-MA200WA."

TCL replied, "Unfortunately, there are no official sources from which I can download the required file."

Where find it?

⟐ Commented June 08, 2026 at 0:35 MST

Sound is unaffected. Can't be the hdmi as it happens even when no cord is plugged in and the no signal screen comes up. Power supply is plugged into a surge protector.

Any thoughts?

⟐ Commented June 07, 2026 at 14:42 MST

⟐ Answered May 29, 2026 at 0:54 MST

⟐ Answered May 17, 2026 at 15:19 MST

⟐ Answered May 15, 2026 at 7:58 MST

My TV Power board also blew up. Model no TCL 55P6US , I see the part no is 08-L141W44-PW200AG . But I can't find anything available.

Do you know where I can get it?

See the serial number attached, there is a burned mark on the capacitor, I have swap it with new capacitor, but still unable to fix it :)

Any help will be appreciated.

⟐ Commented May 05, 2026 at 5:24 MST