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GregorHouse

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  1. Ok, i found out it's the chip responsible for ADB management. It'll be helpful to know what voltage should I read from the 5V ADB pin when the computer is shutted down, but the switch is ON. Right now I'm reading 0.18V, that goes up to 5V if I isolate the logic board to analog board connection.
  2. I'd need some help here with a Macintosh Color (ColoUr) Classic I bought a couple weeks ago. It was listed as not working, but when I got here a quick inspection at the logic board revealed a bad placed ROM chip, which had two pins out of the socket. Once placed properly it booted up, although without sound and a partially working screen, with artifacts and lines. I dishwashed both the analog and the logic board and that brung the sound back, but the screen was still affected. So I did a full recap of both boards and now it won't turn on. I did the analog first and, stupid me, I didn't test be
  3. Yes, be careful not to go too high, you don’t want quick expansing gasses inside the screen that may crack it. Also vinegar could appear. Bake for longer and if you have it add some dissecant, like silica bags or similar
  4. Well, it may be the case. Even I don't see it in the platter, the seal has turned into some kind of oil. By the way, should I do something on my working Portable drive to prevent it from happening?
  5. It sounds normal, it spins up like usual and doesn't make any strange sound. I'll have a look anyways, it's already broken.
  6. A few days ago I got a good deal on a non working M5120 Macintosh Portable. I recapped it and it works fine except for the floppy and the hard drive. I think the floppy drive may have dirty heads or something, because mechanically it seems to work, but can't read or initialize any disc. I had a strange issue with the hard drive. It was stuck at first, but after insisting on it a few times it finally started spinning and I even could recover the data from it. The owner rejected the data, so I went to wipe it. And here began my problems. Initializing it with Apple SC Utility failed,
  7. It's the most likely, I remember a thread or a manual in The Macintosh Repository explaining how to encapsule old software using Stuffit and then ZIP to avoid this problems
  8. Alright, I could test the drive using Micronet and found out one bad sector (9569), but using Micronet to reallocate it leads to the clicking noise and a couple of errors. I think I'm done here.
  9. Last night I tried a few things and none worked. With Silverlining or FWB at least I could get it mounted, but every formatting option with Micronet led me to an error. Low-level format seemed to work OK all the process until at the end it got stuck on the click-click sector. I'll give it another try this afternoon, but I have low expectations. When you say a firmware syscall do you mean Micronet?
  10. Yes I did. Doesn't matter, I found it elsewhere. Thanks!
  11. I'm struggling to find MicroNet utility. I found this one https://www.macintoshrepository.org/23912-micronet but it's not the right one or I don't understand how to use it
  12. I can't get it to work, what am I missing? The Mac doesn't look at it as an application at all, it tries to fins an application to open it as a document
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