Hi. Am new in this.

My name is Marko.

I turned to you because you are a really great TV Service Provider.

A have Sharp AQUOS model: LC-60LE635E
And my tv not start on.
today i replaced the power board with a working one. The problem still remains.
if you could help me i would be very grateful
i think it’s a flaw on the main board
here’s my video
https://youtu.be/juAvTriU-ms

Update my blink error light
A have 2 long and 5 short blink.
Look videohttps://youtu.be/WgiJ3UZ_D2g
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I found that I have a fault on the T-Con board
I bought a new T-Con board from Aliexpress

I get a new china T-Con board. I install it and get to the next problem. See my pictures and video.
Do you think the T-Con board is to blame? Will I have to buy the original T-Con board ??
Thanks.