Re: Clock battery and floppy lubrication
Hi everyone out there ! The clock batteries are 4 convenient Accumulator cells with 1.2 Volts and approx 600mAh - you can replace the 4 serial-connected cells (total=4.8 V) with AAA Size NiCad or NiMH Types. When I purchased my Lisa II from Sun many years ago, it has a dead clock battery, or a broken clock. All I know is that the clock has never worked. But this would probably not the main fault. Normally the leakage from bad batteries causes corrosion of the boards, so you will have to test all connections of the Lisa Board near the batteries. If you're lucky then corrosion will only have destroyed the upper and or lower layer of the board but not the two layers between (known as layer 2 and 3) and you could fix that problem by some soldering. You should first check the two hf transistors nearby the quartz cristal; they are responible for continous sweeping and then the signal goes to an inverter chip which causes a perfect TTL signal. Check this output too with an Oscilloscope. That's all :-) greetings TOM from Bavaria, the center of europe, the country with the marvellous castles of Koenig Ludwig and the original Octoberfest in munich... ... and last but not least the country of Pope Benedict -- 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
Re: Clock battery and floppy lubrication
The clock has never worked. I know about the time issue. Not even setting it to times the Lisa clock can recognize worked, even after I got it. I get an error message that the time is not set (or something similar) every time I turn the computer on. I assume the batteries were dead or the clock doesn't work. [EMAIL PROTECTED] wrote: When I purchased my Lisa II from Sun many years ago, it has a dead clock battery, or a broken clock. All I know is that the clock has never worked. And it never will. These don't have a Y2K problem, they have a 1995 problem. So don't worry about the date. Do, however, worry about the batteries leaking. If you really want to replace them they are a 4 pack of NiCAD's - don't use anything else or you'll damage your I/O board. Instead of replacing them, I would highly recommend just removing them. You can either cut them off at the tabs (careful not to damage the board) or desolder them. (- also be careful). The Lisa will run fine with no batteries at all and you remove the risk of a leak damaging your I./O and motherboard. -- 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 - This message was sent using Endymion MailMan. http://www.endymion.com/products/mailman/ -- 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
Re: Clock battery and floppy lubrication
Hi, I think you have a problem with your COPS412 chip: The COPS421 handles the RTC (Real Time Clock) which has a span of 15 years. Consequently this was set for 1980 to 1995, which means that it'll be really interesting to set dates such as 1998. Talk about Y2K premonition! I wonder what Apple was thinking... But it's really interesting, that the clock is working until the year 2005 with OS 7.1.1, and even until 2040 if you are running Mac OS 7.5.5 with MacWorks II+ ( still available through John Woodall on Ebay (vintagemicros.com)). I had the same problem as you do. As I exchanged my COPS 421, the problem was gone. Helmut Post - Original Message - From: [EMAIL PROTECTED] To: LisaList lisalist@mail.maclaunch.com Sent: Thursday, May 12, 2005 12:11 AM Subject: Re: Clock battery and floppy lubrication The clock has never worked. I know about the time issue. Not even setting it to times the Lisa clock can recognize worked, even after I got it. I get an error message that the time is not set (or something similar) every time I turn the computer on. I assume the batteries were dead or the clock doesn't work. [EMAIL PROTECTED] wrote: When I purchased my Lisa II from Sun many years ago, it has a dead clock battery, or a broken clock. All I know is that the clock has never worked. And it never will. These don't have a Y2K problem, they have a 1995 problem. So don't worry about the date. Do, however, worry about the batteries leaking. If you really want to replace them they are a 4 pack of NiCAD's - don't use anything else or you'll damage your I/O board. Instead of replacing them, I would highly recommend just removing them. You can either cut them off at the tabs (careful not to damage the board) or desolder them. (- also be careful). The Lisa will run fine with no batteries at all and you remove the risk of a leak damaging your I./O and motherboard. -- 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 - This message was sent using Endymion MailMan. http://www.endymion.com/products/mailman/ -- 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
