🚀 go-pugleaf

I have come into posession of a Mac Portable, unfortunately it doesn't 
work. I had some luck booting it up when I first got it, getting as far as 
'Bienvenue a Macintosh' (it has french system software and an AZERTY 
keyboard), but after looking at the power system more carefully it appears 
that it was booting from the 9V PP3, which didn't have the juice to spin up 
the disc drive. When that PP3 ran down I got another, but that won't do it 
at all (it looks like Duracells have less ooomph than Panasonic)

Anyhow, I have renewed the lead acid batteries in the battery pack, and it 
still won't boot, it is getting less far than it did before, A random 
pattern appears on the screen, the floppy drive goes 'bong' and that is it. 

Any ideas where to look for problems? 

-- 
ap