180c screen problem

[Mark Benson]

OK I managed to patch together a whole Powerbook 180c from 2 units. 
When I switch it on using the button at the back I get the gray screen 
and a bong and, after it's tested all the RAM it loads. The trouble is 
the grey screen stays up and I get no Mac OS on the screen at all. The 
brightness control works ok (which I believe is controlled by the 
computer not directly?) and the screen is working fine as an LCD should 
(so the backlight is OK, and the screen seems to be communicating with 
the rest of the 'Mac' part.

Upon attaching the Powerbook to a monitor via the external video port, 
i get exactly the same thing in glorious 17" VGA.

The hard disk (512MB IBM SCSI 2.5") has 7.5.3 on it, likely from a much 
later Powerbook. I can't get it to boot from a 7.6 CD (I don't know if 
it even recognises the CD drive!).

So is it the software? Or the Daughterboard? Or the LCD (doubtful!!) or 
am I being stupid?

BTW I am pretty new to this game and am bound to be subjecting everyone 
to a fair amount of torture as I have a 5300 PB waiting in the wings 
for some serious work...

--
Mark Benson
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