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  1. Paralel

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    I guess this proves that Hosiden's methodology of creating LCD's at that time was just crap.
  2. Paralel

    Tunnel Vision On Monochrome Active Matrix Powerbooks

    Replacing the LC in the screen is impossible. The glass sandwich part of the screen can never be taken apart successfully.
  3. Paralel

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    The charge retention is why the moisture invasion from a bad seal for the Hosiden active matrix mono LCD's makes more sense than the competing theory for tunnel vision. The other theory has no mechanism to explain how the charge retention occurs. For the moisture invasion theory it is easily...
  4. Paralel

    LC 630 DOS + OS 8.1 = PC SETUP will not load

    So, it has something to do with the preferences folder? That is very odd.
  5. Paralel

    How to install software on Macintosh Plus?

    The full technical name is SCSI Target Disk Mode
  6. Paralel

    PPC hardware hack idea: 802.11g in an original AirPort slot.

    Huh, I wonder why the original airport card slot rejects it?
  7. Paralel

    PowerBook Ethernet PCMICA setup

    Just for reference: This is for Open Transport 1.3: https://macintoshgarden.org/apps/open-transport-13-gold-master This is for the Open Transport 1.3.1 update: https://macintoshgarden.org/apps/open-transport-131-update-open-transport-13-68k Since its a PowerPC system, I would imagine you...
  8. Paralel

    How to install software on Macintosh Plus?

    That's the main reason I BIN all my SIT files. Something strange does seem to happen to SIT files if they are moved around enough and aren't BINed or HQXed properly. I generally suggest BIN over HQX since HQX can really inflate the size.
  9. Paralel

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    I still find the seal-reflow theory unconvincing. If it was simply about seal-reflowing then multiple bakes shouldn't provoke further improvement, while longer bakes should provoke an improvement, but what has been seen so far is the inverse of that. Longer bakes beyond 4-5 hours are not useful...
  10. Paralel

    New theory on the cause of the infamous Tunnel Vision problem - Testers needed!

    You can bake it again, but be forewarned that doing do can stress the liquid crystals to the point where you start to get what's known as "pixel rot" or "liquid crystal rot". What happens is that the helical structure of some of the liquid crystals degrades due to heat stress. It will appear as...
  11. Paralel

    LC 630 DOS + OS 8.1 = PC SETUP will not load

    That is so strange. The big highlight of PC Setup 2.1.7 was supposed to be OS8 compatibility.
  12. Paralel

    68040 plastic case from Freescale to pin configuration?

    I would agree with making sure the mask matches one that was actually used for the part one is looking for. That info should be available on the NXP site. I would also say to not discount the XC parts. The Powerbook 550c used the XC68040FE33M and worked just fine. I've never been able to figure...
  13. Paralel

    PowerBook 3400c upgrades & Preventative Maintenance - A question or two.

    One of the reasons people saw it as a step backwards from the Blackbird.
  14. Paralel

    How to install software on Macintosh Plus?

    If the res fork is lost/damaged, can a DSK file still be used by restoring creator/type, or is it just crunked for good? If the DSK file has lost its res fork, WinImage should still be able to write it to physical media.
  15. Paralel

    How to install software on Macintosh Plus?

    Disc Copy only works with IMG files, not DSK. DSK is basically a raw snapshot of a disk image. One way to use a DSK with a mac is to write it to a physical disk using a program that can write DSK files. Disc Copy can work with IMG files, both uncompressed and compressed (depending on the version...
  16. Paralel

    Finally manged to acquire a Lisa 2

    Just as an FYI to anyone reading this, these instructions are very out of date compared to current CPR guidelines. I would not suggest using them IRL unless for some reason no one else knows what to do and you have no other reference. Less than perfect CPR is better than no CPR at all. I'm...
  17. Paralel

    How to install software on Macintosh Plus?

    If you're a Windows user, and using a recent version of Windows, the best way to get the software onto a disk is to use WinImage. It can open uncompressed IMG and DSK files and write them to a 1.4 MB floppy in a format that your PB 180 can understand, which will allow you to bring them over to...
  18. Paralel

    68040 plastic case from Freescale to pin configuration?

    This reference from NXP should tell you everything you need to know about the 68040 series as of Rev 2.3: https://www.nxp.com/docs/en/reference-manual/MC68040UM.pdf Unfortunately, I don't know of any more recent revision, as even Rev. 2.3 is quite old.
  19. Paralel

    Looking for information on this Macintosh Portable PDS card

    Huh, never heard of one of these before.
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