My Clamshell iBook (original blue model) screen is black most of the time. Sometime is comes on for a short while and other times it flashes on and off. I have had the screen replaced by Apple a couple of years ago but do not have AppleCare
I have the original battery but it does the same with the AC Adapter/Charger plugged in and the battery fully charged. I am not about to send it back to Apple as they charged me $700 to fix it last the last time. It worked fine until the warranty ran out.
Thanking you all ahead of time for any help I receive.