----- Original Message ----- From: "Jeremy Derr" <[EMAIL PROTECTED]> To: "G-Books" <[EMAIL PROTECTED]> Sent: Tuesday, March 18, 2003 5:08 PM Subject: Re: Pismo and open firmware trick
> On Tuesday, March 18, 2003, at 03:26PM, Joe Ellis <[EMAIL PROTECTED]> wrote: > > >Had the problem prior to the upgrade. And yes, I'm pressing the keys > >immediately, both from a restart and from a full off condition. > > > >In researching this problem; I got a PDF of the Apple troubleshooting and > >disassembly guide and from what I can discern from it, the sleep state is > >controlled from an IC chip called PMU99 and I suspect this IC is my problem; > >however, the book is not clear on where this particular IC chip is mounted. > >It could be on the Power Manager circuit card, the sound and power control > >card or the main logic board. I've eliminated the Power Manager board > >because I was able to try a replacement card to no avail. That leaves the > >sound card or the logic board. > > PMU99 is the Power Management Unit; i'd be very surprised if it was on anything other than the Power Manager card. your problem may lie elsewhere, but i'm almost certain that this is where the PMU99 IC is. > Well, I've replaced the Power Manager card with no change in symptoms. Replaced (Reinstalled both OS X and OS 9) with no change in symptoms. Any one know of a test I can run on the main logic board other than a swap out? Joe Ellis -- G-Books is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Check our web site for refurbished PowerBooks | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-Books list info: <http://lowendmac.com/lists/g-books.html> --> 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/g-books%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
