IMac G4 Display Won't Stay Lit

Hello all. Several months ago my iMac G4 FP display began flickering intermittently, and eventually got more frequent over time. Then, eventually, the display would just go black at random times. I found that I could temporarily restore the display by putting the machine to sleep and then waking it back up; however, this annoying condition also became more frequent. Now, the screen is more or less black all the time. Whether I put it to sleep and wake it up, or shut it down and power it back up, the display becomes visible just briefly at the start and then blinks out completely. Shining a flashlight into the display I can see (barely) the desktop and icons and all -- and everything, including the boot-up process, appears to be functioning normally -- but without the flashlight I just can't see anything and the machine is pretty much unusable. I've tried restting the PRAM (no effect) but have not yet tried a PMU reset. Any ideas on what's happening here and what I can do about it? Should I try the PMU rest? I've heard it might be a backlight/inverter issue (or possibly a logic board problem), but I'm still seeking opinions. I appreciate any ideas/insights anyone can provide!

You should do the PMU reset.
http://support.apple.com/kb/HT1712
If that does not help, the most likely problem is either the CCFL (the lamp or lamps used for backlighting) or the inverter (which provides power to the CCFL). Since the problem occurred gradually, I don't think the problem is related to wiring or connections.

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IMac G4 Display Won't Stay Lit

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