u/Next-Patience1

Hey everyone!
My Sony KDL-50W829B TV had an issue where there was audio, but no picture at all.
I used AI to troubleshoot it, and after testing it with a different power adapter, the screen turned on! So the original power brick was definitely faulty.
However, now the screen just displays static / analog noise ("snow"). When I press the HOME / MENU button, the TV's internal menu doesn't show up over the static at all (audio is still working fine).
Based on this:
🌸The screen panel and backlight are alive and functioning (no dead glass/LEDs).
🌸Since the TV's own menu won't render over the static, it seems like a T-Con board, video scaler/mainboard, or internal ribbon cable issue.
Given that the display itself works, does this sound like a cheap/easy fix (like a T-Con swap or cable reseat), or is the mainboard fried? Is it worth taking to a technician at this point?
Thanks for any insights!

Hey everyone!
Our TV (Sony KDL-50W829B) just stopped working properly. There's audio, but the screen is completely black.
I used AI to troubleshoot it a bit and did the flashlight test on the screen, but couldn't see any faint image or menu in the background at all. Based on that, it seems like it's not just a dead backlight, but likely a faulty T-Con board or mainboard.
Do you think it's worth taking a 2014 model in for repair, or is it better to just cut my losses and look for a new one?
If you think it's fixable for a reasonable price, any reliable repair shop recommendations would be appreciated!
Thanks!

—Update:
EDIT / UPDATE:
I tested the TV with a different power adapter, and the screen actually turned on! So the original power brick was definitely part of the issue.
However, the screen now just shows static / analog noise ("snow"). When I press the HOME / MENU button, the TV's internal menu doesn't show up over the static at all (though audio is still fine).
So it looks like:
-The panel and backlight are alive and functional (no dead glass/LEDs).
-But since the menu won't render over the static, it seems like a T-Con board, video chip/mainboard, or internal ribbon cable issue.
Given that the panel itself works, does this sound like an easy/cheap fix (like a T-Con swap or cable reseat)?