[SPARCbook] Reviving a Dead SparcBook 3GS - stuck booting

[blc at ou.edu]

I am not sure about the normal digits, and while i am not an expert i
will offer my iterpretaion of your problems.  It sounds to me as though
there is a high probability that the prom has been damaged.  If this is
true, and you can not boot, the only meathod i know is to find a
replacement.  Another possible explination is that the frame buffer is
malfunctioning.  I have heard tales of wires becomeing lose in the case,
which whould probably be worth checking.  Unfortunatly if it is not that
and my theory is correct, i dont know how to fix it with out price
replacement.  One possible check would be to use another sparcbook with
your hard drive and either assure or eliminate the possibility of that
as a problem.  Best of luck
Brian
"Barry A. Dobyns" wrote:
> 
> --snip--
> >From: <blc at ou.edu>
> > a couple questions.  Can you do a stop-A pefore it locks up and does the
> > screen ever display anything (and if so what)?
> 
> Pressing Pause-A or Pause-R before it gets to 001 and hangs has no effect as well
> 
> The main screen stays dark - no splash screen, no display of any sort whatsoever.
> 
> The small status display works, however, and I can see the "battery charge" indication
> (and I've tried with the battery in, and out, and fully charged 100% and fully discharged 00%)
> 
> After I remove the battery and AC power, and then either put a battery in, connect AC or both,
> I get the behavior I mentioned before -
> The status display shows "0D0" for less than a second, then
> I can hear the hard disk spin up when the LCD status displays 007 (I've also tried with the HDD out)
> then it hangs forever with the status display showing 001.
> 
> What is the normal sequence of digits in the status display during boot?
> Is 001 some sort of diagnostic indicator that should tell me what's failed?
> 
> -b
> (sad owner of a dead SparcBook)
> 
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