For me, since it's become so specific, perhaps off list. Marshall H.
On Thursday, October 11, 2001, at 07:49 PM, James MacPhail wrote: > > Q: Would others prefer this to be off-list, or should it remain on-list? > > Hi Vince, > >> The board I have is a XL board I believe because the board # is 620-142 >> which according to sun remarketing manual says its an XL board. But >> that >> manual says it will work in my Lisa 2/10. There is no battery pack on >> this >> board. I'm gonna check the other suggestion now on the board to try >> and get >> it to fire up. > > I was under the impression that you had a Lisa 2, not a Lisa 2/10, but > it > may not matter... > > The Lisa 2 has an external parallel port connector (near the serial > ports > on the back), the Lisa 2/10 does not. The Lisa 2/10 has an interrupt > button, the Lisa 2 does not. Others may have different definitions of > course. > > Various re-configurations and name changes confuse the issue of what is > each kind of Lisa, however the prescence or abscence of a parallel port > on > the back panel of the motherboard is a reliable indicator. > > The Lisa 2 usually has the 1.2 Amp power supply, the 2/10 usually has > the > 1.8 Amp power supply, although both work in both machines, the extra > power > requirements of the 2/10 pretty much require the stronger power supply. > (These nameplate ratings are for the 120 volt version, the 240 volt > versions have different nameplate current ratings). > > As for I/O boards, I believe they are NOT completely interchangable, > perhaps someone else can comment on this. If you have a back panel > parallel > port, your I/O board should be 620-0117 (with the battery & switch, > battery > perhaps removed). If you do not have a back panel parallel port, your > I/O > board should be 620-142 (no battery). > >> Just to verify, U7F a 7417. No jumper wire where you where >> describing, but >> I may have a different board than what you thought. Jumping pin 12 to >> 14 >> causing pin 12 to go high doesnt fire it up. > > U7F is a 7417 on both I/O boards. The flying wire is only present on > 620-0117. > > It is possible I have the sense of the pin 12 voltage backwards. If it > is > 5V when the Lisa is off, try pulling it to ground to see if the power > supply starts up. > >> Ok, I checked U7F pin 12 and it does go to pin 120 on the edge >> connector. > > You could check that that pin goes through the motherboard and chassis > to > the power supply's edge connector, sorry I don't know what pin off-hand. > >> Is there any way to check votages out of the power supply connector to >> verify it is the power supply? > > Since you have already confirmed the 5V standby power is working, there > is > no simple test. This is a problem with switching power supplies. > Swapping > power supplies would be the easiest thing, but not everyone has a garage > full of Lisas (neither do I). > > HTH, > > James > > James MacPhail "Think not of engineering as art, > [EMAIL PROTECTED] but of art as engineering" > Sigma Seven Systems Ltd. > [EMAIL PROTECTED] <http://SigmaSevenSystems.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> > 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/lisalist%40mail.maclaunch.com/> > > Using a Macintosh? Get free email and more at Applelinks! > <http://www.applelinks.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> 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/lisalist%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
