[SOLVED] Display won't turn on, is the panel dead ?

[Vaisync]

Hey guys,
I've taken out my old ultrawide monitor from storage cause I had some free time and I wanted to finally end the saga.

Back then when it went off, I remember I was getting a new table top for my desk, and I turned off the display and unplugged the power cable from the display.
When I plugged the display back in the display won't turn on at all - but it does have the LED light on ( I assume it gets power ).
Tried the same power adapter and HDMI cable on a different monitor and everything works.

Today I took off the back panel to see if there's any board damage of some sort. To my surprise - nothing. (not that I can see).
I've attached some pictures if there's maybe some people with more knowledge than me.

LG 29UM65

Any help will be appreciated,
Cheers.

 

[cdrkf]

The fact the LED is on suggests power is getting to the control board, however it may not be reaching the panel (or more specifically the back-light).

Do you have a multi-meter? You could potentially test to see if voltage is getting to the panel connectors (the panel looks like it takes a DC power input from an external adapter? In which case it should be safe enough, be very careful if it's a mains connection though).

The failure you have described doesn't sound like the panel to me - more likely a blown cap. You may want to take the control board out completely - there will invariably be components on the other side of it - as you say nothing obvious has failed on the rear side of the board.