Zapping the PRAM SHOULD reset the Power Manager as
well... But I wouldn't wager on it...  

To be sure, unplug your Powerbook from the AC, then,
take out the battery.  Hold the reset button on the
back next to the Ethernet/Modem slot in for anywhere
from 1-2 minutes (no exageration)  then let it go. 
Leave the battery out of the machine, but plug the AC
Adapter back in.  Now push the Power Button and try to
start it up.  (I usually zap the PRAM through about 6
chimes at this point too.) It should chime and boot as
normal.  Once it boots up, put the battery back in. 
This should take care of reseting the Power Manager
for you. 

Beyond the Power Board, though... I wouldn't overlook
somethign as simple as a PRAM battery.  They cause all
kinds of wierd unexplainable power oddities when they
get weak...  If you haven't replaced the PRAM in your
3400, don't delay... go get your self a new one and
put it in.  You won't be sorry.  You can pick them up
for under $15 and if you've ever put a RAM card in
your 3400, you can change the PRAM battery too...

Cheers,
Sionnach 


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