A few screenshots.
LisaList2
- April 17, 2024, 02:49:55 pm
- Welcome, Guest
News:
2022.06.03 added links to LisaList1 and LisaFAQ to the General Category
91
on: January 21, 2024, 01:09:57 am
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Started by ried - Last post by ried | ||
92
on: January 21, 2024, 12:44:10 am
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Started by ried - Last post by ried | ||
Over the last couple of years, I've picked up 5 Lisas and 8 ProFile hard drives. It's been a great learning experience, thanks to several members here and elsewhere.
One of my recent purchases is a ProFile hard drive that worked for the usual 10 minutes before its RIFA capacitor let loose the magic smoke. That was long enough to verify the drive's functionality, confirm that it was already in the LOS 3.1 format, and see that it contains dozens of documents from the late 1980s. Most from LisaWrite, but others as well. Interestingly, the documents were created by a college professor in Virginia. He was teaching courses about Artificial Intelligence and Machine Learning, as well as math. His course outlines are all on this particular ProFile drive - along with lots of significant personal and family-related documents. Truly amazing that this gentleman was teaching classes about AI and ML in the 1980s. It's a treasure trove of information. Google searches lead me to believe that he's still alive and kicking at 79 years young. I plan to reach out and offer to send him these documents, but I would like to retrieve and translate them into modern file formats so they are accessible to him. Questions:
Advice would be greatly appreciated. |
93
on: January 19, 2024, 09:58:54 pm
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Started by blusnowkitty - Last post by compu_85 | ||
From fri0701's post:
I've been working with LisaEm and BLU a bit over the last few days... Just found an AppleNet conflict with their system with one at CHM: https://www.computerhistory.org/collections/catalog/102638272 B08B831250030 00102092 83125 2/5 A3356088 00102092 3356 2/5 A6S0300 CHM I also noticed a huge overlap in the Applenets at the Texas plant on Nov 18 1983 and Oct 26 1984 (A friday..) The 1983 AppleNets range from 00107325 to at least 00107435 The 1984 AppleNets range from 00107203 to at least 00107772 So there's at least 110 AppleNets that are overlapped. Perhaps with some more work we can spot all these overlaps and remove them from the calculation? Perhaps plotting out the "address space" of each factory at each day would be a good place to start. PS: Something magic happened on June 6th, 1984 at the Texas factory. The system SNs and AppleNets aligned SN A4158122 AppleNet 00104122, 4158108 00104108, A4158066 00104066... -J |
94
on: January 19, 2024, 11:48:15 am
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Started by blusnowkitty - Last post by ried | ||
Here is a European Lisa 1 that was upgraded to Lisa 2 spec, for reference.
Model A6SB100P - Memory A6SB108. "Assembled in Ireland" B08B832640254 00106121 83264 Pictures: https://imgur.com/a/U4Zfs9R eBay listing: https://www.ebay.com/itm/156013277663 |
95
on: January 19, 2024, 02:57:49 am
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Started by blusnowkitty - Last post by compu_85 | ||
Here's something a bit interesting: A graph of the Lisas we've observed and their build date.
The green circle is the start of normal production. Yellow is the first observed 2/10, and red is the first observed 2/5 model A6S0300. |
96
on: January 18, 2024, 04:47:22 pm
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Started by Exteban - Last post by sigma7 | ||
I suppose the display will not turn on because the video card has some fault... Generally, Lisa board problems can be diagnosed to individual components, but it depends on the equipment and time you have available. I recommend you make a separate thread/topic regarding the display problem; let us know if the filament glows in the tube and examine the video board for obvious problems such as scorched areas or burned parts. Before removing the top cover, you make sure you are aware of the potentially fatal hazards of imploding vacuum tubes and high voltages and take suitable care. Since there is some confusion about the combination of parts in your Lisa, you may find connectors unplugged etc. from whomever was working on it. What kind of hard drive is in the drive cage? |
97
on: January 18, 2024, 04:03:19 pm
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Started by Exteban - Last post by Exteban | ||
Oooh, thank you very much. It is very useful information. According to what you have told me, the motherboard is 2/5. I have to disconnect the hard drive. If I leave it connected, it doesn't even turn on. I suppose the display will not turn on because the video card has some fault...
Do you know any procedure to repair it, or do I directly change the capacitors? |
98
on: January 18, 2024, 02:27:02 pm
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Started by Exteban - Last post by sigma7 | ||
On the I/O board I have seen that it has two tracks deliberately cut. It is normal? Should I fix them? 1) The board shown is a Lisa 2/5 I/O Board, not a 2/10 I/O Board. It will work in a 2/10 regardless, but you should check that your motherboard matches the chassis harness as these are not interchangeable between the 2/5 and 2/10. A 2/10 Motherboard does not have a back panel parallel port (it has only two DB-25s for serial ports). A 2/10 chassis harness has one 26 pin and one 20 pin ribbon cable in the drive cage. A 2/5 Motherboard has a back panel parallel port (making three DB-25s, including the two for serial ports). A 2/5 chassis harness has two 26 pin ribbon cables in the drive cage, and if it has a 3.5" floppy drive, a "Lite Adapter" board connecting the drive to one of the cables. 2) The cut under C34 was done at the factory by Apple; it is normal, so you should not bridge the cut. 3) The cut under C33 is the style of an Apple modification, but Apple did not add large capacitors to the rear of any boards AFAIK, so there is something odd about that, can you provide a picture of the entire topside of the board? 4) There are likely to be wires 'tacked' on the component side; Apple made some modifications in that manner too. 5) Aside from repairs, some boards may exist that have non-Apple modifications -- if there are any, they are rare. An exception is that there are numerous 512K memory boards that have been user upgraded to be 2MB boards. edit - added memory board exception |
99
on: January 18, 2024, 01:49:46 pm
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Started by Exteban - Last post by Exteban | ||
Hello. I have bought an Apple Lisa 2/10, which does not turn on the CRT, and with an external display it indicates error 57 (disk Drive). On the I/O board I have seen that it has two tracks deliberately cut. It is normal? Should I fix them? |
100
on: January 16, 2024, 07:59:30 pm
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Started by blusnowkitty - Last post by compu_85 | ||
BTW, I added columns for the Model No and Memory Option. Here's what I've noticed:
Model A6SB100 - Lisa 1. Memory A6SB104 must've been 1/2mb? A6SB108 is on a red sticker. Model A6SB100P - Euro Lisa 1? Memory A6SB108. Model A6S0200 - Lisa 2/10. Memory A6S0204. Model A6S0200P - Euro 2/10? Model A6S0300 - Lisa 2/5. Memory A6S0304. If our non-US members could chime in and let us know if their Model Numbers end in P I'd appreciate it! Thanks, -J |