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  1. CompuNurd

    100+ Compacts, 20+ PowerBooks,1 Lisa 2, and 2x NeXT Cubes

    What ever happened to these? Did you sell them all locally, or is someone keeping the hoard for 20+ years?
  2. CompuNurd

    Vertical sweep failure repair

    But I have a few good ones I could compare to, I just don't know where I should be probing voltages.
  3. CompuNurd

    Macintosh IIcx PSU Problems

    I did replace the axials with the rest of the capacitors. I will double check polarity and orientation on the weekend.
  4. CompuNurd

    Vertical sweep failure repair

    I don't even know where I am supposed to be checking voltages at :-/
  5. CompuNurd

    Vertical sweep failure repair

    How would I test that?
  6. CompuNurd

    Vertical sweep failure repair

    I got a free Mac Classic some time ago, and on my quest to clean the garage, I have decided to fix it up to add to the collection. I glanced at the board for bad solder joints, but didn't find anything. Just to be sure, I freshened the solder on the connector to the deflector coil, still no...
  7. CompuNurd

    More than I use.

    Where'd you get a cube?
  8. CompuNurd

    Macintosh IIcx PSU Problems

    Only the motherboard was recapped.
  9. CompuNurd

    Macintosh IIcx PSU Problems

    Before I get the Q700, does anyone have an idea as to what is wrong with the IIcx?
  10. CompuNurd

    Macintosh IIcx PSU Problems

    Let's take a better look at this: I read what unity said in the forum above, and it looks like I put the cap polarity in the same as the others. I reverted it, same result. If you take all load off, such as floppy and hard drive, it stays on if you are holding the power button. Once you plug...
  11. CompuNurd

    The Gift of Macs!

    The Apple II came with the monitor and I did get output from the monitor. I didn't really test them too much, I just wanted to make sure they fired up. I wasn't too familiar with the Commodore stuff, and I am used to the floppy drives being powered from the computer. The size and way it works...
  12. CompuNurd

    The Gift of Macs!

    It turns out there is no printer with the Commodore, rather the 5.25" floppy drive which weighs a lot and is about the length of a keyboard! Remember, this is a floppy drive!
  13. CompuNurd

    Lisa tear-down video

    Did he ever say where he got it?
  14. CompuNurd

    The Gift of Macs!

    I called my electronics surplus shop and was saddened to see that most of the systems I wanted were bought by someone else, however it gets better. These systems were in boxes wrapped in the garage waiting for me! Here's how the story goes: When my parents were looking for something to get...
  15. CompuNurd

    What Caps to Recap Classic II?

    The Mac would probably not get used too often, maybe a few times a month. I like to keep the Macs in working order before I put them on the collection shelf, in case I do want to use one or get parts from it. From what you said, I think general purpose or low-ESR would do the job fine. Probably...
  16. CompuNurd

    What Caps to Recap Classic II?

    I want to do an entire analog board recap for my Mac Classic II. For the PSU part (there is a big group of caps, and you can see a green stain around the board where they are) I would be using low-ESR. For the rest, which should be the CRT circuitry, I would be using high frequency. The problem...
  17. CompuNurd

    Possible dead ROM chip?

    I cleaned a few bad looking chips with acetone and a Q-tip, then I freshened up some solder joints and I now have a good board again!
  18. CompuNurd

    Possible dead ROM chip?

    https://68kmla.org/forums/index.php?/topic/23962-cleaning-cap-goop-from-logic-boards/?hl=cap+goo "you can do this in a bucket with a tooth brush" I assumed he meant to put the actual board in a bucket. Around 3:30 he talks about ammonia and a degreaser, with some water in a tub to submerge...
  19. CompuNurd

    Possible dead ROM chip?

    I don't think washing is the issue, I soak all the boards in ammonia, acetone, and water in a pan for 5 minutes before scrubbing with a toothbrush, then repeating 1-2 times before rinsing with the sprayer in the sink. I shoot it with a compressor until there is no water, and I try to shoot under...
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