test-drb August 1998

test-drb@ccmp.vtda.org

166 participants
848 discussions

Mac Portable problems (was Re: Mac Portable batt charger)

by sinasohn＠ricochet.net

At 12:08 PM 8/20/98 -0700, you wrote: >I have the same problem with my Mac Portable but >I havent had much time to tinker with it. > >Have you replaced the 9 volt battery? I'm wondering >if that might have something to do with it in some >strange, phases-of-the-moon way. First off, check the MacPort FAQ at <http://www.bford.demon.co.uk/mac/portablefaq.txt>. The hard drive is a proprietary connector, but you can build an adapter or purchase one ready-made (see the FAQ). The Mac Port needs power to boot. That power has to come from either the 6v LA battery or the 9v. The 9v needs to be in good shape though. To use the 9v, remove the cover to the big battery compartment (the cover trips a switch when it's in place). --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

26 years, 4 months

Mac Portable problems (was Re: Mac Portable batt charger)

by Marion.Bates＠Dartmouth.EDU

--- "Dellett, Anthony" wrote: Hmmm... Check out this URL... You can replace the internal HD40SC with any 3.5" drive ya want. Tony http://www.micromac.com/products/portable_scsi.html --- end of quote --- Wow! After I tinker with these old ones a little more, I might just go with that. Thanks! -- MB

26 years, 4 months

Mac Portable problems (was Re: Mac Portable batt charger)

by roblwill＠usaor.net

Is the mail Lead-Acid battery any good? If the battery is discharged or shot, the computer won't power up at all. This may be your problem. I believe it is a 6V battery. If I'm correct, then one out of a power wheels thing should work to find out if it's a battery, or a bad computer. -- -Jason (roblwill(a)usaor.net) ICQ#-1730318 ---------- > From: Marion Bates <Marion.Bates(a)Dartmouth.EDU> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Mac Portable problems (was Re: Mac Portable batt charger) > Date: Thursday, August 20, 1998 3:19 PM > > I checked the backup battery and it read 8.7 volts or something, which I > figured was adequate...maybe not? > > > -- MB

26 years, 4 months

Mac Portable problems (was Re: Mac Portable batt charger)

by tomowad＠earthlink.net

>If there's no repair possible, then is there any other kind of hard drive >that will work in a Portable? Or does someone have a spare they'd sell/trade? Well, the Paul Kelbaugh <kelbaugh(a)aol.com> I mentioned earliear has adapters to make your Portable work with ordinairy SCSI hard drives. $30, IIRC. Tom Owad -- Sysop of Caesarville Online Client software at: <http://home.earthlink.net/~tomowad/>

26 years, 4 months

Mac Portable problems (was Re: Mac Portable batt charger)

by Anthony.Dellett＠Staples.com

Hmmm... Check out this URL... You can replace the internal HD40SC with any 3.5" drive ya want. Tony http://www.micromac.com/products/portable_scsi.html -----Original Message----- From: Marion.Bates(a)Dartmouth.EDU [mailto:Marion.Bates@Dartmouth.EDU] Sent: Thursday, August 20, 1998 3:19 PM To: Discussion re-collecting of classic computers Subject: Re: Mac Portable problems (was Re: Mac Portable batt charger) --- "Tony Dellett" wrote: I have the same problem with my Mac Portable but I havent had much time to tinker with it. Have you replaced the 9 volt battery? I'm wondering if that might have something to do with it in some strange, phases-of-the-moon way. --- end of quote --- I checked the backup battery and it read 8.7 volts or something, which I figured was adequate...maybe not? -- MB

26 years, 4 months

Minor Tektronix success story.

by jeff.kaneko＠ifrsys.com

Not that I know of. TSC went under some years ago; we all assumed that it took the source to its grave. Rumour has it that some former employees of TSC *may* possess some sources, but they have not stepped foreward. FWIW: A co-worker of mine was approached some years ago with an offer to sell the FLEX sources. My co-worker wasn't interested, and the guy went away. Don't know who he was. For all we know, it ended up in the dumpster. :-/ Jeff At 02:33 PM 8/20/98 -0500, you wrote: > >< For years, it was *THE* disk operating system if you had a 6800/6802 bas >< system. Originally written in the late 70's, it powered the majority o >< the SS-50 computers until the 6809 came out. Then came FLEX/09, StarDOS >< UniFLEX, OS/9. . . . > >Are sources available? >

26 years, 4 months

Mac Portable problems (was Re: Mac Portable batt charger)

by Anthony.Dellett＠Staples.com

Hmmm... Seems that if a Mac Portable battery is dead, you cant power the machine even with the AC adaptor. I'm certain this has something to do with my problem. It also seems that if the Mac Portable battery ever gets discharged below 5.4v it becomes a doorstop. Tony

26 years, 4 months

Mac Portable problems (was Re: Mac Portable batt charger)

by Anthony.Dellett＠Staples.com

I have no idea if it makes any difference or not. My guess is that the 9V powers some parameter ram or something. It just makes me wonder that all three Mac portables you have all contain dead HDs ? Tony -----Original Message----- From: Marion.Bates(a)Dartmouth.EDU [mailto:Marion.Bates@Dartmouth.EDU] Sent: Thursday, August 20, 1998 3:19 PM To: Discussion re-collecting of classic computers Subject: Re: Mac Portable problems (was Re: Mac Portable batt charger) --- "Tony Dellett" wrote: I have the same problem with my Mac Portable but I havent had much time to tinker with it. Have you replaced the 9 volt battery? I'm wondering if that might have something to do with it in some strange, phases-of-the-moon way. --- end of quote --- I checked the backup battery and it read 8.7 volts or something, which I figured was adequate...maybe not? -- MB

26 years, 4 months

Mac Portable problems (was Re: Mac Portable batt charger)

by Marion.Bates＠Dartmouth.EDU

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26 years, 4 months

Mac Portable problems (was Re: Mac Portable batt charger)

by workapulo＠my-dejanews.com

I have the same problem with my Mac Portable but I havent had much time to tinker with it. Have you replaced the 9 volt battery? I'm wondering if that might have something to do with it in some strange, phases-of-the-moon way. Tony (this is my hit the home email from work route, dont reply to this email address) -- On 20 Aug 98 14:56:48 EDT Marion Bates wrote: >--- Tom Owad wrote: >>Can someone tell me what the output of the Mac Portable battery charger >>should >>be? (What I should read across the charger contacts?) When I plug it in >>using a >>known-good AC adapter, then place the battery on it, there's no LED glow. > >It's most likely the same as the Mac Portable's power adapter, which is >7.5vdc, 1.5A. >--- end of quote --- > >Thanks for the info. Actually, according to Apple Service Source docs (found 'em after I posted the question) the charger puts out about a volt less. The power adapter itself is fine, but the external charger seems to be fried. > >I have a more pressing problem now. Basically, the computer has a grand mal seizure whenever the internal hard drive is connected. > >I've got three semi-functional Portables, and am hoping to wind up with at least one that works. But they all seem to have bad hard disks (Apple 40SC internal) -- if the drive is connected at power-up, it makes a tick-tick-tick noise, the screen flashes, and it repeatedly plays interrupted Death Chimes until I turn it off. The drive never actually spins up. > >I'm not familiar with that hard drive model. Since there's no separate power cable, I assume it's some sort of funky low-power-combined-with-SCSI thing. So, anyone got any ideas about what to do with them (besides drop-kick 'em into a swimming pool)? Is there some goofy reset I can do, or a bad fuse somewhere to replace? > >If there's no repair possible, then is there any other kind of hard drive that will work in a Portable? Or does someone have a spare they'd sell/trade? > >-- MB > > -----== Sent via Deja News, The Discussion Network ==----- http://www.dejanews.com/ Easy access to 50,000+ discussion forums

26 years, 4 months

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test-drb August 1998