No welcome screen, no desktop, no nothing… It will stay on after booting, displaying nothing else than what you can see in the pictures.
As I said before, it's the chassis, CRT, analog board and floppy drive from a 512k, with the logic board of a known-working Plus. I've read those « upgrades » were possible; am I right?
Edit: I know the CRT is working fine, and by the way the smiling Mac icon is perfectly well drawn, pixels are sharp and on focus, and one can see the usual grey pattern behind the floppy and the Mac icons, around the edges…