Question Sharp tv still won't power after new main and power supply board

Sep 4, 2019
Hey first time posting on here but I'm sure it won't be the last.

I bought a broken Sharp tv that didn't power. I've replaced the main and power supply board with no change. Once plugged in, the power light will come on but when I hit the power button, the light will dim like it's running out of juice. Then it'll flash at me. I've yet to see the panel light up. By my novice deductions, I'm going to guess either tcon board or panel.... but idk. Please help me.

I have 70 bucks into this and havne't seen a change. So I'm hoping someone can give me some advice. I've fixed a lot of broken TV's in the past and I have a few failures with far more successes. I'd like for this not to be a failure, because it's a really nice tv.

Thanks in advance