Sorry to hijack this thread a bit, but I have a Mac XL which seems to have a bit of an identity crisis. The front panel matches that of a Lisa 2, but the set of ports on the back include a parallel port, akin to a Lisa 1 (also, the unit came with an original-style Lisa mouse). The internal 20MB hard drive connects to this parallel port via a ribbon cable which sticks out of the back cover. The backside of the front panel has the word "PROTOTYPE" molded into the plastic, as well as some shoddily-cut plastic here and there. Might this mean anything? Thanks in advance. -Adam
-- Adam Vaughn Collector of old computers, video game systems, radios and other electronic equipment... Visit my page at http://www.electronixandmore.com/adam/index.html > > If a lisa 2 had all it's internal boards (IO, Mother, CPU and RAM) > > dated 1982, would it be a fair guess that this was a Lisa 1 that has > > been upgraded to a Lisa 2? I have also noticed that at the back the > > drive cage some small modifications (cut away some of the metal) have > > been made to make room for cables leading from the lisa to the 'Lisa > > Lite adaptor' board. This 'lite adaptor' board is also the only board > > in the machine dated 1993. > It's my understanding that all Lisa's have some board dates of 1982, and > this alone does not indicate a Lisa1 conversion. > Other Lisa 1 clues to look for may be: > 1. An original Lisa mouse (with funky clip connector), later Lisa2's used > the mac mouse with thumbscrews. > 2. Early SN# or AppleNet# > 3. A gold and ceramic package CPU > 4. A resistor (R47?) on the IO board > > > This machine has a 1.2 Amp power supply, that will stay on for a > > short time, then power down. Some times it won't start at all, and > > lets out a little 'cheep cheep!' noise (like a bird) when you hit the > > power button. Has anyone had this problem before? > > If it is the power-supply that is dying, can a more reliable 1.8 amp > > power supply be used to replace a dying 1.2 amp version without any > > modification? > Using the 1.8 P/S works well and is a popular and common upgrade for all > Lisa's. It's a plug and play replacement for the 1.2amp unit. > > > Also, when going through it's self diagnostics, it gets an error 57 > > in the IO board. I have read from the 'Do it yourself' guide from Sun > > Rem that this is a 'Disk controller' problem and may also have > > something to do with the Lisa Lite card. Any ideas what I should > > check first? > If the I/O card was swapped from an other unit, check the Floppy controller > ROM ver. You may have the 800K ROM for a 400K drive or vice-versa. > > Hope this helps, > Rick > > > -- > LisaList is sponsored by <http://lowendmac.com/> and... > > Shop buy.com and save. <http://lowendmac.com/ad/buy.com.html> > > Support Low End Mac <http://lowendmac.com/lists/support.html> > > LisaList info: <http://lowendmac.com/lists/lisa.html> > --> AOL users, remove "mailto:"; > Send list messages to: <mailto:lisalist@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/lisalist%40mail.maclaunch.com/> > > iPod Accessories for Less > at 1-800-iPOD.COM > Fast Delivery, Low Price, Good Deal > www.1800ipod.com -- LisaList is sponsored by <http://lowendmac.com/> and... Shop buy.com and save. <http://lowendmac.com/ad/buy.com.html> Support Low End Mac <http://lowendmac.com/lists/support.html> LisaList info: <http://lowendmac.com/lists/lisa.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:lisalist@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/lisalist%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
