Earlier A500s and A2000s have red Power and Caps Lock LEDs and Green Floppy (and HD for the A2000) LEDs.
The later ones have Green Power and Caps Lock LEDs and Amber Floppy (and HD for the A2000) LEDs.
It really sounds strange that your A500+ has the top combination, but maybe someone has put an old keyboard in there.
Anyways, my brother used to have a very early A500, this one had a 'C=' key instead of the Left 'Amiga' key. I've never seen one like this since.
-Paul
