Hi again,
Just a quick update again.
I open the Lynx and with a visor magnifier look at every single conection in the pins and in the board also in the all board components.
I don't see any dust, rusty, broken, damaged, burned... nothing.
All seems very clean and very NEW in look.
I left two more photos from my investigation.
Well, Lynx is dead and i have to buy another, that's the solved case.