I reset PRAM and NVRAM and PMU screen on ibook dark can't see

Hello. My g3 ibook screen was changing from darker to okay. I read the forums about reseting pram and nvram and pmu. So, I reset the PRAM and NVRAM, scren went completely dark. It still would chime and boot up. Witha flashlight you could see desktop. So, I reset PMU, now no chime and still desktop is dark. What happened? I don't have a cable yet to hook it up to an external monitor. I ordered one on eBay, should have this week. What did I do to the ibook? More importantly what can I do to make it work again.

Does adjusting the angle of the display make a difference? (A little forward or a little back?)
Here is the link to Apple's Knowledge Base article on troubleshooting portables that won't turn on or start up:
http://docs.info.apple.com/article.html?artnum=50959
Maybe something there will help.

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I reset PRAM and NVRAM and PMU screen on ibook dark can't see

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