⟐ Commented 六月 28, 2026 at 2:28 GMT-7

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 六月 27, 2026 at 20:55 GMT-7

I want to check if it is possible to remove some material in the for the custom made earbuds without interfering with battery or functions by the case itself.

⟐ Answer edited 六月 27, 2026 at 12:29 GMT-7

⟐ Commented 六月 27, 2026 at 10:57 GMT-7

⟐ Answered 六月 27, 2026 at 8:56 GMT-7

⟐ Commented 六月 27, 2026 at 8:13 GMT-7

I got the mic head off easilly with 2 screws.

The problem starts with getting the circuit out. It is held in with a frame and the frame is held in with something else i cant find. The circuit is held to the fram with 2 (3?) Screws that are placed perpendicular to the shell so its unreachable with any normal screw drivers.

The reason for the teardown is the usb C port at the back has unattached from the circuit/soldiering and i want to re reattach it.

⟐ Answer accepted 六月 27, 2026 at 7:40 GMT-7

I have tried to factory reset by pressing vol+ and play button but that doesn't fix the problem

Aux is working fine

⟐ Commented 六月 27, 2026 at 7:10 GMT-7

Recently I have this problem with Philips LED Smart TV where the 3 quarters of the screen went weird starting from the left side with top portion image is flipped and the color goes dark and not display properly with reddish tint unlike the right side. You can see the ghosting effect too and a portion of vertical lines that appears at the leftmost side. What causes this and which part is the faulty one?

⟐ Commented 六月 27, 2026 at 6:48 GMT-7

This is what screen looks like

⟐ Commented 六月 27, 2026 at 6:32 GMT-7

My right headphone has stopped working. It doesn't play sound but I think it's some kinde of trouble with the cable because when I bend it right over the remote the sound comes back.

Has someone experienced the same problem and have any good advice?

⟐ Answered 六月 26, 2026 at 23:41 GMT-7

OL means ‘over load’ but it isn’t even connected to anything

i suspect it is faulty but wanted to find out if anyone else has experienced this and maybe it’s simple

⟐ Commented 六月 26, 2026 at 21:02 GMT-7

Any solutions to fixing it? I do own WD-40 contact cleaner which works well on my meta quest 2 joysticks, but skeptical of using it on my headphones because it seized up my switch pro controller joysticks, making them very hard to move and not fluid anymore.

⟐ Edited by author 六月 26, 2026 at 11:05 GMT-7

French->English translation:

Title: Why is there no sound coming from my TV?

Description: Suddenly, there is no sound.

⟐ Commented 六月 26, 2026 at 8:50 GMT-7

⟐ Answered 六月 26, 2026 at 7:28 GMT-7

⟐ Answered 六月 26, 2026 at 5:03 GMT-7

⟐ Answered 六月 26, 2026 at 3:45 GMT-7