Re: Lisa won't stay off (was Lisa 2: Bad Disk Drive)
Le 12 nov. 05, à 00:33, James MacPhail a écrit : This was an aside to another problem, so it looks like it didn't get any attention: when I switch the Lisa off, it goes off then on immediately. I have seen a couple of causes for this problem, ones that come to mind are: 1) Damaged (broken) traces on the I/O Board due to corrosion from leaking batteries. After removing battery, and cleaning as much as I can the board, it's OK ! I also clean all socket. Great ! More over, I test second second board (Cage, CPU, IO, 2 RAM Card and one // card) and it's working also :happy:. This second board as a different ROM version (H/A8) athough the first one is D/A8. Is there any real differences ? Which one is better ? When started with the H/A8 board, the Lisa will only ask to boot on drive 2, although it let choose Drive 1 (which does'nt exist ?) and Drive 2. Both Profile start on MacOs. *but* despite all my effort, the diske drive remain not functionnal. It make some noise at startup, like if head are blocked... I will try again to dismantle it and grease everywhere again... May be somebody have a spare diske drive ? Or Macintosh drive may work ? Lisa is my best piece of old computers, far away from my other Apple pieces likes Apple II, macintosh 128 What a beautiful thing ! Jerome -- 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
Lisa won't stay off (was Lisa 2: Bad Disk Drive)
This was an aside to another problem, so it looks like it didn't get any attention: when I switch the Lisa off, it goes off then on immediately. I have seen a couple of causes for this problem, ones that come to mind are: 1) Damaged (broken) traces on the I/O Board due to corrosion from leaking batteries. If your I/O Board once had batteries on it, check the continuity of the traces in that area carefully. If it still has batteries on it, you should probably remove them and clean the circuit board in that area before battery leakage causes (more) damage. The battery is not required for startup or operation of the Lisa; it is only to keep the clock running and preserve some preference settings in RAM. Unlike a modern computer whose clock can run from the battery for years with no external power, the Lisa battery only lasts for a few hours when external power is interrupted. 2) Bad COPS, or perhaps poor contact with its socket. It may be enough to remove and re-insert the COPS to improve the connection. If not, replace the COPS with one from another I/O board... if it still doesn't work, then it probably isn't the COPS. 3) A couple of other parts on the I/O board can fail causing this sort of problem, so if the above don't help, let us know and we can start trouble-shooting. Good luck! 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 -- 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
