I don't know if it is the same on a 3400 but the symptoms exactly match the dead PRAM battery in my 5300. Replacement of the PRAM battery cured the problem.

Tom ([EMAIL PROTECTED])


Can a dying/dead PRAM battery do this??


On Monday, March 29, 2004, at 05:19 PM, Fabian Fang wrote:


There may be a problem with the Power Manager. Try to reset the Power Managing Unit in accordance with the following Apple Article, and see what happens.

<http://docs.info.apple.com/article.html?artnum=58416>


On Monday, March 29, 2004, at 10:19AM, Matt Jordan <[EMAIL PROTECTED]> wrote:


I have a PowerBook 3400c/240 that has difficulties waking up from sleep.
Usually I will let it charge up with a known-good battery at home over the
night and take it to class with me.

Two things happen - EITHER:

1.)  I will get to class and notice that the Power LED is no longer
blinking indicating that the laptop isn't on anymore.  It will not start
up from the battery at this point.

2.)  The LED will continue to blink but when I press a key to wake it up,
the HD spins up and everything seems like it is working but there is no
video.  When I shut it down, it does not start again.

When I plug it back into the power adapter it boots perfectly (sometimes
without pressing the power key).  I can remove the power cable while it is
running and it switches over to the battery and will continue to run from
battery power for hours.

What is wrong?

Thanks a lot!

Matt

 - Eric.
--

Eric Strobel ([EMAIL PROTECTED])

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