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  1. warmech

    LC Boot Issues

    Welp, it's the DFAC. It was getting a fairly close 8.11v (I would assume is within the DFAC's tolerance range), so I pulled both it and the 78L08, cleaned the area, added some fresh solder and reinstalled. Bupkis. I'm on the hunt for another LC/LCII board, so this will wind up being a moot...
  2. warmech

    LC Boot Issues

    Huh - so 8v is the expected output from the 78L08 for the DFAC? I may go test this in a minute...
  3. warmech

    LC Boot Issues

    After a recap, looks like my DFAC is dead as well; no audio through the speaker nor the headphone jack. PSU is outputting the correct voltages and works fine with another LC as well. Additionally, the hard disk I was using was just a dying hunk of junk. It's totally dead now, so it must have...
  4. warmech

    LC Video Sync Issue

    It took a minute of head-scratching, but it occurred to me that the LC probably wasn't actually the problem. I cracked open the monitor and had a go at the horizontal hold potentiometers; a teeny tiny little twist of HHOLD2 (it barely even turned) snapped the image into alignment. I'm sill a bit...
  5. warmech

    LC Video Sync Issue

    Alrighty, I'm stumped with this one. I've been using an Apple Multisync Display with an LC that I just recapped that, up until earlier today, was fine. All of a sudden, I get this: Having worked with arcade monitors before, I suspect this is a sync issue. The thing is, if I use a video...
  6. warmech

    LC Boot Issues

    Well, small update: all my 7.0.1 disks were acting screwy, so I imaged a new floppy of the first install disk and it booted to the installer. It kept complaining about not being able to install to itself (understandably) but I didn't notice that now I had the option to switch disks. I hit the...
  7. warmech

    LC Boot Issues

    I'm trying to get an LC to boot, but have run into some weirdness. It will not recognize the HD, even though it spins up and I can hear it clicking away, and the floppy will only read a 7.1 install disk. Any other boot or install disk is ejected - 6.0.8, 7.0.1, the Network Access Disk, etc...
  8. warmech

    Dead-ish Mac Classic II - Grey Screen with Thin Vertical Lines

    Alrighty - parts have been ordered: caps, diodes, and the opto IC for the analog board, and tantalum caps for the logic board. I assembled my Mouser cart as a project so anyone can order the same stuff in the future - https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=79cc59f895...
  9. warmech

    Dead-ish Mac Classic II - Grey Screen with Thin Vertical Lines

    Yeah, I was worried about that. I have a few 5v/12v switching power supplies for some of my arcade games that I could splice in and try. What exactly does the 12v drive on one of these boards?
  10. warmech

    Dead-ish Mac Classic II - Grey Screen with Thin Vertical Lines

    Hey everyone, I've been working on my Classic II and have hit a bit of a roadblock. I get a very, very quiet startup chime, but it only gives me the following display: I'm getting 5.00v even and 11.4v off the logic board connector, which seems in spec but may be too low. The thin lines have...
  11. warmech

    68040 Insertion Force

    Just replaced my LC040 with a proper 68040 and, good grief, getting the 040 back in the socket was  really difficult. Is it supposed to be that hard to set the CPU back in the socket? It's also not 100% flush with the socket (it's about half the thickness of a credit card between the bottom of...
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