TCL 75" 5 series TV (S555) with one quarter of screen dead.

Hello guys. I'm sorry that I don't know all the terminology, but I have a problem that I hope won't be too involved. Also, this this TV was in a factory where it almost definitely has been sprayed with water.

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.