Greetings listers,

I've got a PowerBook G3 (original Kanga) that I can't get up and running.
I've tried asking at the Apple support site, but haven't gotten much help
yet so thought I'd try here.  For those of you regulars at the Apple site,
sorry for putting you through this again.  Here goes:
 

Here's what's happened, and what I've done: When I first got it it wouldn't
power up - nothing, no chime at all. I could hear power though (a slight
hissing through the speakers) when connecting the adapter. I reset by
pushing and holding the reset actuator several times. Finally got the green
sleep light to come on (steady, no blinking).

After a few more (maybe a dozen) resets I got a chime (YES!) and screen with
the flashing floppy and ? It would then power on to the flashing floppy
using the keyboard power button.

I inserted an OS 8 (and 7.5, and 9.1) cd figuring I'd wipe the drive and
start fresh. Every attempt ended with a dialog box stating this OS will not
run on this machine check your manual. These were all genuine Apple generic
cd's, not machine specific cd's.

I decided to open it up and check connections (and make sure there was a
hard drive). Everything seemed fine until I removed the cage holding the HD.
I then noticed that the Power Management Board seemed loose - not really
snapped in. I thought I had it figured out.

I snapped the PMB in, took the HD out and (with a another machine) repaired
and wiped it clean and then reassembled everything carefully and tried
again. But I'm back to where I started. It won't start up.

I've removed the RAM card and tried but no change. I've tried without the
keyboard connected. I've tried w/o the PRAM battery connected. I've tried
all kinds of combinations of these things. I've tried different power
adapters. I've checked and rechecked all connections inside (keyboard, HD,
etc.).

The results are the same: Connecting the power adapter immediately results
in a slight hissing from the speakers. The keyboard power button does
nothing. After resetting I can get as far as a steady green sleep light but
that's all. I haven't heard a chime or seen a flashing floppy in dozens and
dozens and dozens of attempts.

I have since replaced the pram battery and the only difference is that now
the green light will stay on even after the main battery and the power
adapter have been removed.  I've taken this as a good sign (tho I don't know
why. Desperate I guess) So I'm stymied. Any one have any ideas?



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