Jump to content

Forums

  1. Important Information

    1. The 68kMLA Forum Rules   (9944 visits to this link)

      To quote vintage Apple manuals: "Read Me First!"

  2. Community Connections

    1. General 68kMLA News & Stuff

      What's going down in the barracks.

      3972
      posts
    2. Conquests

      Discuss your latest vintage Mac finds!

      39271
      posts
    3. Trading Post

      Feel free to trade all of your Mac goodies here with all honest intentions. The website provider assumes NO liability, so buyer beware! Please see this topic for more information.

      52500
      posts
  3. Projects & Hosted Forums

    1. RetroChallenge

      What can you do given only one month and strictly "retro" hardware? Find out with RetroChallenge!
      http://retrochallenge.org/

      1484
      posts
    2. 68kMLA Wiki

      The creation and maintenance of the 68kMLA's information repository.
      http://68kmla.org/wiki/

      483
      posts
  4. 68k Model Forums

    1. Compact Mac

      Macintosh, 512k, SE, etc.

      45236
      posts
    2. Mac II, Quadra & Centris

      Just think, having a Quadra 950 in 1992 would be like having a Mac Pro today… except with more slots, more expandability, and on-board SCSI!

      12884
      posts
    3. 68k LC & Performa

      Ah, the consumer computers!

      7888
      posts
    4. 68k PowerBook

      From the Portable to the 190cs.

      9739
      posts
  5. PowerPC Model Forums

    1. NuBus Power Mac, LC & Performa

      The NuBus architecture gets a new brain!

      2636
      posts
    2. PCI Power Mac & Performa

      The PPC comes of age and adopts the industry standard expansion slot.

      5858
      posts
    3. G3/G4/G5 Power Mac, iMac & eMac

      From the Beige G3 to the quad-core G5, via various iMacs!

      13689
      posts
    4. PPC PowerBook & iBook

      All that power in a laptop? Never…

      8952
      posts
  6. Everything Else…

    1. Apple I, ][, /// & Lisa

      Not really 68k Macs, but certainly Vintage!

      7317
      posts
    2. Newton

      The best PDA ever finally gets its own forum!

      1063
      posts
    3. Software

      Includes system stuff, productivity, emulation, design, and games for pre-OS X Macs!

      17352
      posts
    4. Hacks & Development

      Yes, it's back! Hardware hacks/modifications and software development for Mac OS.

      18360
      posts
    5. Peripherals

      Anything you can hook up to your Mac or stuff into it as an interface!

      14439
      posts
  • Posts

    • Fantastic! I have two more SE analog boards to recap in the next couple of days. Thank you very much for the tip!
    • I have found that a drop of isopropyl alcohol removes hot glue incredibly easily. (The glue even stays in one piece!) When I am desoldering these analog board capacitors, I remove the glue with alcohol first, and they pop right out with minimal effort.
    • Apologies if this is mentioned elsewhere.
      Am I correct in thinking that you can put an LC II motherboard in an LC I case (& vice versa) but you can’t do that with an LC III?
    • Before I put everything back together, I cleaned the Analog Board shield. I forgot to get a "clean" photo of it, sorry about that! But rest assured that it is very clean now.     All that's left is the Logic Board.     Since the battery blew up, the original battery holder was absolutely toast. Luckily, it didn't seem to do much damage around it! The orange stuff that you see I believe is some kind of adhesive, not fallout from the battery. But the through-holes for the battery were a total mess.     To burn through all of the corrosion, I used a bunch of liquid flux, a ton of heat (750°F on the iron), and repetition to clean out the holes. I would flux, heat, solder, desolder wick. I did that 3 or 4 times when finally, the corrosion and rust was all burned out, and I could see through the hole.   But then, disaster! When I pushed the battery holder through, soldered it, and then reheated the joint to full seat the battery holder, the pad popped right off! I had to abuse it pretty hard to get solder to flow, so while I was disappointed, I wasn't surprised.     Fortunately, the adjacent terminal is electrically connected. So I just bent the leg over and soldered it down to that. Not pretty, but it will work.     Board is done! I'm not going to install a PRAM battery, because it isn't needed to boot this machine, and due to the pandemic, I'm not sure when I can deliver this machine back to my friend, and I do not want to ship it. Sadly, it will most likely sit in my garage for a few months.     Reassembled!     Does it work? Here's what it did with a floppy disk boot!     But there are three issues that I need to sort out:   1. The floppy drive squeaks! It's absolutely the drive motor or mechanism. It changes speed constantly. Very weird. It didn't do this before. The drive does read and write, though. 2. It won't boot from the hard drive, which is no surprise. But what is surprising is the sound! Check it out! 3. There's no beep when the system is first powered on. Perhaps the sound is damaged on the logic board?   I could use a bit of help on these so if you have ideas, please let me know. Especially about the sound.
×