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Found 8 results

  1. I'm a long-time lurker, and all of your posts have helped me greatly. As a first post, I wanted to share my resolution to what appears to be a common problem, as both the resolution and my interim workaround are different from what I'd seen in other posts. My IIci suffered from a seemingly common problem: it would not stay on. I would press the power button on the back, it would begin to boot for a split-second, emit part of the happy Mac bong, and then die. I have seen several recommended steps to resolve this problem in various posts: 1) replace the SMD capacitors and clean the b
  2. Troubleshooting an SE/30 motherboard with an oscope is almost impossible with how short the power/signal cable is (J12). Has anyone tried making a longer cable for troubleshooting? This is the cable that connects the motherboard to the analog board. thank you, Rick
  3. Hello all, new to the forums I have a Mac Classic II, which had its logic board recapped, bringing the computer to life. After doing so, I decided to recap the analog board. This killed the mac. All of this was done several years ago, and I recently decided I want this machine to work, rather than gather dust. After booting it up, I was greeted with a startup bong and a VERY bright horizontal line. After copious amounts of searching, this is generally attributed to the TEA2037A Horizontal/Vertical deflection IC. However, upon reopening the mac, I actually found that CF4 had
  4. I finally kicked out my Apple TechStep video today. This has been long in coming. Be sure to check out the text description beneath my video on YouTube because it contains a link to a SIT file containing Disk Copy images of the two included floppies, one of which has a pretty neat HyperCard stack.
  5. I've got a couple of Supermac spectrum/8 series 3 cards to fit into IIci. From my searches it appeared that this card provides QD acceleration, but it turns out to be almost twice as slow as builtin video on IIci. So much for acceleration, but at least it could give 1024x768 resolution. It turned out the video is blurred the same way on both cards connected to LCD monitor at all resolutions and all color settings, even in b/w. Tested on different monitors as well. It appears that timing of color components is shifted a bit so white area gets green fringe on one border and red on th
  6. Today I returned to my Quadra 950 projects and discovered an odd problem. I have two of these, both were working as of a month or so ago, and today they BOTH fail to recognize the keyboard or mouse which of course makes it hard to control boot up options never mind do anything useful. Tried the obvious: different keyboards, cords, etc. and verified that the keyboard, mouse, and cables I'm using work fine on a Mac IIsi. Strange that BOTH computers developed the same symptoms at the same time. Anybody else seen this kind of problem on vintage Macs? The older they get, the more electr
  7. Hi everyone, I'm new to the forums, but I was wondering if anyone could me troubleshoot my Mac Color Classic (stock, no upgrades like Mystic or Takky). I opened the computer and replaced the original 80MB HDD with a 2.1GB disk. Before, the screen worked and it showed the blinking disk icon, but now even though the computer turns on and makes the startup chime, the screen is entirely dark. I wouldn't be surprised if this was a cable I knocked loose or forgot to reconnect when I was removing the analogue board, but so far, I haven't been able to find anything out of place.
  8. Hi everyone So I have something that wouldn't really be considered unusual a very sick Macintosh Plus I have yet to see it boot or do anything else than try and kill it's self. I bought this Macintosh Plus off a Friend who had more money than sense and he bought it from Canada and had shipped here to Ireland, sadly he thought it would be a simple plug and play and he never heard of a step down converter. when he plugged straight in the Irish 250V socked it blow the crap out of it and he said it just popped. So 2 months later he offered it to me because he bought a UK one instead and I got
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