One thing bad about the Apple Disk // drive spinning is sometimes the 3470 chip on the circuit board gets blown and that bad chip will erase any disk put into the drive. I would take the drive apart and check the circuit board for any damaged chips. The 74ls125 chip sometimes is damaged and youcan tell as the top surface of it sometimes melts. If that 74ls125 chip is damaged I suspect the 3470 chip is bad also. Another thing to check is the read head as sometimes they get dirty. I once had grape jelly on the floppy disk that put jelly on the read head where it dried into a thick film. Cleaning that read head repaired that drive. I havent looked for the 3470 chip recently but they were around 4.00 back in 1995 I have lots of circuit boards for the // drive and spare chips(3470,74ls125 and all others)
-----Original Message----- From: Apple2list [mailto:[EMAIL PROTECTED] On Behalf Of Ian Nixon Sent: Thursday, January 05, 2006 7:37 PM To: Apple2list Subject: Re: Apple IIe On Jan 5, 2006, at 6:40 PM, Antonio Rodríguez wrote: > Are you completely sure the disk you are trying to boot from is good? > A IIe trying to boot from a broken disk would do just what you are > telling us: spin it and then sit forever trying to get something read > from it. Well, I'm not quite sure, but I'll be sure once PacMan comes :-D > The only strange thing is the "disk in use" not lighting, but that > may be well because of a loose cable inside the disk drive itself, it > all the remainder works without problem. You can also open the IIe > (with the power off, of course ;-) ) and verify that the drive's > ribbon is correctly attached to the "Drive 1" connector on the Disk ][ > controller. Check carefully that it is correctly aligned (not one pin > off to the side), and that it is plugged all the way in. Will try when the TV is free (Mom's currently watching something O:-) ) > Btw: is your IIe an enhanced one? You can tell by looking at teh > startup screen: the unenhanced model says "Apple IIe", where the > enhanced one says "Apple //e" (mind the slashes). It *says* //e, but I've heard from another person that the enhanced model has a keypad and the "Enhanced" light is not next to the " ~ " key (Bottom left...) ... > And, how much memory do you have? Look if there is a card in the "aux" > slot (the one that isn't aligned with the others), and if there is > one, look for an inscription. Then tell us. You know how interested > I'm in your IIe and why ;-) . 64k. -- Ian -- Apple2list is sponsored by <http://lowendmac.com/> and... / Buy books, CDs, videos, and more from Amazon.com \ / <http://www.amazon.com/exec/obidos/redirect-home/lowendmac> \ Support Low End Mac <http://lowendmac.com/lists/support.html> Apple2list info: <http://lowendmac.com/lists/apple2.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:apple2list@mail.maclaunch.com> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/apple2list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com -- Apple2list is sponsored by <http://lowendmac.com/> and... / Buy books, CDs, videos, and more from Amazon.com \ / <http://www.amazon.com/exec/obidos/redirect-home/lowendmac> \ Support Low End Mac <http://lowendmac.com/lists/support.html> Apple2list info: <http://lowendmac.com/lists/apple2.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:apple2list@mail.maclaunch.com> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/apple2list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
