Dell Monitor Problem?

[Bonebreaker777]

Take it apart and examine the components, look for easily identifiable malfunctioning or blown parts.I recently repaired a screen,parts (or multiple of them because singular capacitors weren't available at the time) costed me £4 plus 1h of work (40-45min taking apart, 10-15min back together) and it is working wonderfully.

[prdp]

OK, so I've just disassembled it - pretty easy thanks to youtu.be/3R3SJ1P7ROc - and, unfortunately, there's no obvious melted capacitor

All I can see is maybe some small "burned" areas. Here's some pictures of it : imgur.com/a/fzZxJ#0

I also have a doubt on the third picture part (inverter right ?) because it is more or less where I heard the strange noise.

How can I find the problem ?

Thanks.