Nintendo switch no TV output (diagnose done)

Hey folks,
I have a nintendo switch here which really grinds my gears. It doesn't switch to tv mode.
The console's display turns off and the dock's green light turns on (it charges), but no TV signal.

So far I checked for corrosion, changed USB port (was a bit loose), changed M92T36 and PI3USB. Checked the diode values of those parts. Checked the filter below the PI3USB. I can't find any problem with the device. There was no prior repair done. I was the first to open the console.

The device itself has no signs of hard drop or any damages at all. It looks almost brand new. They used an original docking station and the original charging cable. I really have no clue what else to check. Can anyone help me out from here?

 

Problem fixed.
Finaly found out what caused this shit.

So satisfying

 

The 6pin thing isn't a filter. The replaced part is smth different. The one above is a filter, which is fine.

 

Tbh. I didn't test it. I just replaced it from a known good board, after I got the tip from someone in another forum.

//e: I don't have a part number. I can check tomorrow if there is some kind of print on it and make a picture of it.