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fri0701

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  1. fri0701

    Classic II Rev. 2 Schematics

    I found those online while looking for the schematic, but that one's for the first revision: 820-0401-B.
  2. fri0701

    Classic II Rev. 2 Schematics

    Does anyone know where I can find schematics for the second revision Classic II motherboard? Part number is 820-0326-B. Thanks!
  3. fri0701

    IIcx Chimes of Death

    I should also mention that the soft power key from the keyboard does work to turn on the computer.
  4. Hi everyone, I decided it's time to finally fix my broken IIcx! (but I've run into some roadblocks) Originally, the computer wouldn't turn on at all - it would click if I held down the power button, but that was about it. I replaced all surface-mount and axial capacitors on the motherboard, and now the computer will turn on, but it plays the dreaded Chimes of Death. Despite this, the hard drive sounds like it's seeking, but the screen is blank. I'm using a known good video card, so I think I can rule that out as an issue. The chimes play even when no video card or RAM is installed. There is no ROM SIMM installed, and both jumpers W1 and W3 are fully populated. If I remove jumper W1, the death chimes do not play on startup. I've heard from some places that the IIcx *requires* a battery to boot, but I don't have one to put in at the moment. Can anyone confirm this? I'm a little stumped where to go from here. Has anyone else encountered a similar issue? Thanks in advance!
  5. Hi everyone, I just backed up an Apple III-formated ProFile drive (10MB) to my modern Mac using ADTPro. Does anyone know of a utility program that exists that can read the .po disk image and save each file on the disk as a separate file on my modern machine? I thought of using Ciderpress (which I've had success with in the past for Apple II disks), but it doesn't seem to play nice with this image. Thanks!
  6. fri0701

    A Bit Of A Rarity

    From a 2013 thread about one of the other two Twiggy Macs: @OldMacGuy - Sounds like a good first step will be to find someone (ideally) local with a Lisa 1, who should be able to read and back up your disk over a serial connection to a modern computer. I'd recommend pursuing a backup now before continuing to test your drive with that disk, so you don't lose any data or corrupt the disk during your testing! As for the drive itself, there's been some good discussion about Twiggy servicing over at LisaList2 lately. Perhaps you'll find that useful at a starting point: https://lisalist2.com/index.php/topic,80.0.html If the controller board on the drive is identical to the one used in a Lisa, I wonder if the whole drive could be hooked up to a Lisa 1 and "exercised" by BLU, which would give you an indication as to whether or not it's working properly. Obviously, you'd have to make *absolutely* sure everything was identical before attempting this...
  7. fri0701

    A Bit Of A Rarity

    That is surprising! Your keyboard has the same groove in the same place as the first Twiggy Mac's keyboard.
  8. fri0701

    A Bit Of A Rarity

    @OldMacGuy Your keyboard seems to have the same pull-out drawer as one of the other surviving Twiggy Macs. Is there anything inside? Thanks for the additional pictures! I'm grateful you're taking the time to thoroughly photograph and document this machine.
  9. fri0701

    A Bit Of A Rarity

    Or the Computer History Museum! I bet they'd love to display one of these.
  10. fri0701

    A Bit Of A Rarity

    Amazing find! I hope you post more details about it soon, including some more photos!
  11. fri0701

    ADTPro Lisa Profile Transfer

    Hi Sunder, Here's a link to my code: https://github.com/tfrikker/lisa_utils Hopefully you find it useful for debugging purposes! Feel free to PM/post here if you need my help with anything, or if you test it on any of your disks! I'm curious to hear how it goes.
  12. fri0701

    Lisa Error 45

    Here's a link to the table of startup error codes: https://lisafaq.sunder.net/single.html#lisafaq-hw-rom_error_codes Looks like a Bus error (not entirely sure what that entails, but maybe a poke around the Lisa boot ROM source would get you somewhere?)
  13. fri0701

    ADTPro Lisa Profile Transfer

    Hi Sunder, I read over the BLU image format (http://sigmasevensystems.com/blumanual.html) and the DC42 format (https://wiki.68kmla.org/DiskCopy_4.2_format_specification), and I decided I'd try to write my own version of blu-to-dc42 from scratch. I got a version working that produces bootable ProFile images from my raw BLU dumps! It only supports 5MB ProFiles at the moment. Once I clean up my code a bit, I'd be happy to send you a link if you're interested in taking a look.
  14. fri0701

    ADTPro Lisa Profile Transfer

    I ended up using ZTerm, and it looks like it worked! I now have 3 Lisa ProFile disk images on my modern computer. I ran all 3 of these through the "blu-to-dc42" utility and I now have 3 .dc42 images. None of these boot in LisaEm, however. My plan was then to set one of my dumped ProFile images on a virtual dual parallel port card and then boot from a fresh Lisa Office System install on the internal parallel port. However, when I boot from a LOS 3.1 ProFile image on the parallel port, no other ProFiles connected to dual parallel port cards show up. Do I need the ROM for that card to see drives at all? Thanks for all your help!
  15. fri0701

    ADTPro Lisa Profile Transfer

    Thanks, Sunder! This'll be very helpful. Is there a modern Mac utility/program for grabbing bytes from serial that you'd recommend? I have a DB15-DB9-USB cable setup I use with my Apple III for ADTPro that I'm hoping will also work for the BLU transfer.
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