I dont think it would get anywhere near that. I was just quoting worse case , racetrack style :)
As you can see from the other above posts generally on cruising they are pretty good.
These links "may" be helpful
https://at-manuals.com/manuals/a340-a341-a343/
https://www.google.com/search?rlz=1C1CHWA_en-GBAU831AU831&q=A341+Transmission+manual&tbm=isch&source=univ&sa=X&ved=2ahUKEwiJ8eWz4vDmAhUc6nMBHZSpAkkQsAR6BAgFEAE
At a guess the ribbon cable has gone open on one of the wires where it goes into the screen. Saw a "fix" on an US site some time back where you removed and reworked the joints.
Also may have to search Ebay etc for a replacement screen if that doesn't work.