Re: PowerBook 3400 Problems

[VidaVerde]

Just to wade in here - I had one died with very similar symptoms.  I 
did the OF stuff with no help.

I swapped bits one by one with another 3400 and it was the MB

Anyone know what OF commands there are available? I know:

reset all
reset nvram
but that was about it.

Ben


Have you tried the Open Firmware command ?
It produces a lengthy list of commands. I was hoping
for a command that would reset the Rom(s). Hard to
believe that a physical chip deteriorates over time.
I think this way because I have had no problems
charging either of two Li ion batteries.
(Yes, I forgot to mention that the keyboard can be
erratic, too.) Have you swapped cables (the HDD cable,
etc.)?
Best
George
--- "Volk (contractor)" <[EMAIL PROTECTED]>
wrote:
 George,

     No physical damage, 2 of the machines came to me
 in that condition and
 the one I was using just deteriorated over time.
 Roger

...(PMU) is a 68HC05
 > > microprocessor that operates
 > > with its own RAM and ROM. The PMU IC performs
 the
 > > following functions:
 > >  controls sleep and power on and off sequences
 > >  controls power to the other ICs
 > >  controls clock signals to the other ICs
 > >  supports the ADB
 > >  scans the keyboard
 > >  controls display brightness
 > >  monitors battery charge level
 > > >  controls battery charging
--
The VidaVerde Seed Collection
14 Southdown Avenue, Lewes
East Sussex, BN7  1EL
Excellent Vegetables
For the Kitchen Garden:
illustrated catalogue at
http://www.vidaverde.co.uk
--
PowerBooks is sponsored by <http://lowendmac.com/> and...
 Small Dog Electronics    http://www.smalldog.com   | Enter To Win A |
 -- Canon PowerShot Digital Cameras start at $299   |  Free iBook!   |
     Support Low End Mac <http://lowendmac.com/lists/support.html>

PowerBooks list info:   <http://lowendmac.com/lists/powerbooks.shtml>
 --> AOL users, remove "mailto:";
Send list messages to:  <mailto:[EMAIL PROTECTED]>
To unsubscribe, email:  <mailto:[EMAIL PROTECTED]>
For digest mode, email: <mailto:[EMAIL PROTECTED]>
Subscription questions: <mailto:[EMAIL PROTECTED]>
Archive: <http://www.mail-archive.com/powerbooks%40mail.maclaunch.com/>
Using a Mac? Free email & more at Applelinks! http://www.applelinks.com