Hi,
I've been having problems with my Powerbook 800 DVI over the past few days, and I was hoping that you all might have some suggestions. The machine's out of warranty.
First off, my backlight on my screen started tweaking out last week: flickering and/or going off sporadically when the computer's moved or tapped, until put to sleep and reawakened, and the screen works again, though sometimes with the flicker/shut off. After reading around, it seems to be one of three things: the inverter, the motherboard, or the cable connecting the inverter to the motherboard.
Haven't figured that out yet, but I thought I would reset the power manager just to try to see if that would do anything. After doing so, the computer started back up. But when I left it on and came back into the room 30 minutes later, it had shut down, and I haven't been able to restart it. Sometimes the screen flickers for a fraction of a second and the disk drive sounds like it starts to spin, but not the hard drive. I've unplugged it and pulled the battery and ram and let it sit for a while (30m and longer), but still no go.
I've read about other people having similar problems, which seemed to fix themselves, but I was wondering if anyone has suggestions, ideas about what it could be if it doesn't come back up? Logic board? PMU?
I had a similar problem over a year ago, when a disk was stuck in the machine, and the Apple Care person (under warranty then) had me reset the power manager, and the computer died. Had to send it in then for repairs, possibly a logic board then, but I'm not sure now.
Thanks much!
Josh Yumibe
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