Non-backlit screen, help?

I'm sort of getting tired of taking this 'Book apart and reassembling… I have the infamous missing backlight problem: the display has images but no illumination. I have replaced the inverter twice with the same results, am wondering what other sources might cause this problem. I am doubting that the bulb is bad (though not completely ruling out); there was no gradual dimming or pink tone to the display, just a sudden "lights out" event.
Any ideas?
Thanks.
Jan Georgen

I assume you've tried resetting the brightness by pressing the appropriate keys on the keyboard. It's therefore entirely possible that it is the bulb in the display. You might be better off buying a new LCD (with bulb in it) than trying to replace the one in your current screen. You can get them pretty cheap off eBay (the 12 inch Powerbook uses the same screen as the G3 and G4 iBooks)

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