Chosen Solution
@bdm4350uc this is sometimes caused by the flat cable connecting the TCON to the LCD panel coming loose. The area of missing video can be dark or completely white depending on the panel design. Since you do have some “signal” to the side it is also possible that this is a bad LED driver board (not yet DIY’er replaceable). I would try and get a replacement T-con board (I’d go for as inexpensive as possible)and keep fingers crossed that it’ll work
