Panasonic Viera tc-p46g15 blinks 4 times

Hi everyone :)

First post on this forum !

I found an old Panasonic Viera tc-p46g15 in my parent’s basement, apparently it has been here for a while, so I’m trying to make it great again !

When I plug it, I hear the clicking noise, and then the red power button blinks 4 times, repeatedly. And I don’t find what it means on the Internet, probably because I don’t know where to look ! So here I am, bothering the community !

According to this link, it may be a power SOS from the P board, which I have no idea what it means :p : https://archive.org/details/Panasonic_TC...

I also found this in case it blinked 5 times, but mine is 4 times so it’s probably different : LED-5-Blinks.pdf

I someone could help me a bit with this, it would be awesome ! :)

Thank you for reading this and have a nice day !

Matthieu