> -----Original Message----- > From: PowerBooks [mailto:[EMAIL PROTECTED] Behalf Of > Christoph Pistor > Sent: Tuesday, September 30, 2003 4:36 PM > To: PowerBooks > Subject: Re: Alert: PB5300 REA ends Tuesday! > > > Dear list, > > I swapped the HD in my PB180c and now I can start up! However, it only > works when the PB is connected via SCSI to a Zip drive which in turn is > connected to my Performa 6400. If I disconnect the SCSI cable, I can > only start from a floppy. Using Disk First aid or the utility does not > let me see my internal disk. However, when running with the SCSI cable > attached I am sure its starting from the internal disk. What could be > the problem? > > It seems that I isolated my problem to be caused by the SCSI connector. > I must have blown something pulling the cord off while the machine was > on. The internal drive starts fine as long as something terminated (like > a Zip drive is attached). It just does not start up when there is > nothing inside the connector. Does anybody know how the internal SCSI > termination of a PB180c works, or where I can find stuff about it? Could > it be just a fuse of some sort? Does the PB provide active termination > internally? > > Thanks for any suggestions. > > Christoph
Yes indeed there is a fuse on the motherboard to supply terminator power, chances are that it has blown and you are getting no 5V term power, unfortunately I do not have the SCSI pin-out to hand, if you have the pin-out then check for 5V between term-power & ground, if it is absent then you will have to pull the book apart to find the fuse, it is probably a 1A surface-mount. Ben. -- 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
