Hi Dan, Jackie and others, As I understand it, a lack of backlighting may be due to a blown backlight bulb, but the problem may also lie in the inverter board. This is a fix I have never done, so I can't say much more. (The inverter board is positioned vertically along the side of the screen on side with the contrast and brightness controls.) I have a couple of extra 230 screens I would be willing to part out. Contact me off-list if you are interested. Good luck. Best wishes, Robert on 12/5/02 20:06, Duo/2400 List at DuoList at lists.themacintoshguy.com wrote: > Hi all! > I'm using a Duo 230 and the other day when I turned it on, the screen was > black, but you could hear it starting up. I've tried resetting the PRAM and > changing the contrast/brightness on the screen, but nothing change :( > Any idea's? > Thanks in advance, > Dan.