Sounds like another suspiciously dead 2400. This happened to me, or similiar
anyway. I was still under warranty and Apple replaced the board, cpu, etc
Free, relatively no questions asked. The computer just up and died. This has
happened to quite a few people on the list.
I thought mine was related to system 8.6. But since I've gotten it back
(three or four day turnaround) it's been fine and running quite a bit
cooler.
Hope this helps.
-
----------
>From: Marc Sira <[EMAIL PROTECTED]>
>To: Multiple recipients of DuoList <[EMAIL PROTECTED]>
>Subject: [Duo] Dead 2400
>Date: Tue, Aug 3, 1999, 5:51 PM
>
> As of last weekend, my 2400 appears to be in serious straits. The sleep LED is
> lit steady green as per the manual - hitting the reset switch produces a
> typical power-on >click< from the speaker, then nothing - no chime, no boot.
> Since this PB replaced my Duo 2300 as my primary computer and I can't
currently
> afford a new one, losing it is really a setback to me. I'd appreciate any
advice
> or similar experiences anyone on this list could offer. A more detailed
account
> follows:
>
> When the problem first appeared (after failing to wake from sleep, something
> it's done a few times in the year and a half I've had it, but not often), I
> tried the usual tricks to reset the PRAM and power manager without success.
The
> green LED wasn't lit then, actually, but was after I opened the machine and
> disconnected the backup battery long enough to clear it out. This didn't work
> the first time either, but with persistence I was eventually able to get it to
> boot a few more times, though it would seem to randomly freeze and require
> another press of the reset button to reboot (this appeared to happen when
> processor cycling set in, and the machine did run stably for a few hours more
> when I'd disabled that feature, though not long enough to really conclude
> anything). The machine would lose the current time and its PRAM settings even
> when it did reboot, so at that time I figured the problem was probably a dying
> backup battery, but subsequent measurements of the battery show that it
remains
> well above its rated voltage when under load. Also, the backup battery isn't
> nearly as important in a Powerbook as a desktop Mac, and I'd thought the
> machine should theoretically be able to do without it most of the time. I've
> even tried connecting a DC voltage supply at 4.0V and 4.5V in lieu of the
> battery without success, so I don't think that's it anyway. I'm unable to
> actually replace the battery with a new one and make certain, for reasons I'll
> get into below.
>
> I did take the PB to a local Apple dealer for a look, but they apparently
> didn't find anything in the service manual, and they were unable to get parts
> for it (ie. the backup battery) in Canada. The company recommendation at this
> point is to ship the machine to a dealer in the US, which I'd obviously prefer
> not to do if possible. Before then I'd at least like to explore the
> possibility that it's (a) fairly minor and fixable, or (b) a complete
> write-off (gulp). I've had a line of Duos, and I really wouldn't expect
> catastrophic failure in a Powerbook after 18 months.
>
> As an interesting corollary, someone posted last night on the Mac portables
> newsgroup regarding a 3400 that appears to be in the same situation. I've
tried
> all the things that person lists, other than replacing the backup battery
> (which didn't work in their case, as per my suspicions).
>
> If anyone on this list is able to sell Apple parts and would be able to ship
me
> a battery or other parts, please email me. Also, if someone has a relatively
> inexpensive Duo 250 or 280 that could use a good home, let me know. Even if I
> do get this thing fixed, I need a better backup, and I've still got a lot of
Duo
> paraphernalia around here.
>
> ----------
> Duo/2400 List, The friendliest place on the Net!
> A listserv for users and fans of Mac subportables.
> FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml>
> Be sure to visit Mac2400! <http://www.sineware.com/mac2400>
>
> Dr. Bott LLC | Get a LapBottom with new �GRIPPIER� gripper pads!
> | http://www.drbott.com/prod/lapbot.html $23.00
>
> Midwest Mac Parts <http://www.midwestmac.com> | After-market parts
> for Macs. Fix your ticking dock for $59 w/ trade-in of PS. 888-356-1104
>
> PowerBook Guy is | Click here!
> Everything PowerBook! | http://www.powerbookguy.com
>
>
>
----------
Duo/2400 List, The friendliest place on the Net!
A listserv for users and fans of Mac subportables.
FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml>
Be sure to visit Mac2400! <http://www.sineware.com/mac2400>
Dr. Bott LLC | Get a LapBottom with new �GRIPPIER� gripper pads!
| http://www.drbott.com/prod/lapbot.html $23.00
Midwest Mac Parts <http://www.midwestmac.com> | After-market parts
for Macs. Fix your ticking dock for $59 w/ trade-in of PS. 888-356-1104
PowerBook Guy is | Click here!
Everything PowerBook! | http://www.powerbookguy.com
