Backlight on, sound on but no picture question

[tibimakai]

I have picked up nice TV with this issue and if I disconnect one of the ribbon cables after the T-con board, there is picture on one side of the screen. Reversing the ribbons, the screen shows some vertical white and black wide bands.
This symptom is a bad panel?
Intentionally did not mention the brand and model number.
With the last Sharp LED TV, I had problems after I have sold it for parts.
Norcal does a test which, sounds like my situation. Bad side doesn't look white, as in his situation though.
https://www.youtube.com/watch?v=GcBwTums_mI

[tom66]

Re: Backlight on, sound on but no picture question

Reversing the ribbons WILL make for a bad panel, do not do it!

[tibimakai]

Re: Backlight on, sound on but no picture question

I won't do it, norcal said, that the ribbons are mirrored, so it's impossible to switch them.
I'm watching this video which also could be my problem, I guess I will take it
apart to check it out.
https://www.youtube.com/watch?v=mpp14G-c9Yo
This TV is a 2012 3D, smart TV and still has these issues? It's a 46D series 6.

[tom66]

Re: Backlight on, sound on but no picture question

Newer LCD TVs have tons of panel failures, it's crazy how bad it's getting now.