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GregorHouse

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  1. GregorHouse

    Tunnel Vision On Monochrome Active Matrix Powerbooks

    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
  2. GregorHouse

    Tunnel Vision On Monochrome Active Matrix Powerbooks

    Hope it works, let us know
  3. GregorHouse

    Macintosh Portable - Hard Drive freezing at startup

    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?
  4. GregorHouse

    Macintosh Portable - Hard Drive freezing at startup

    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.
  5. 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, so I began using Micronet Utility. I couldn't format either, so I began to look for bad sectors and it resulted it had a LOT of them. So I was reassigning bad sectors with Micronet, but it was getting late so I turned it off and went to sleep. The surprise was next morning when the hard drive is somehow freezing the computer right after the boot chime. It just gets to the gray background with the mouse at top left corner. Sometimes enters in a chime loop. It won't even boot from floppy or from an external hard drive, unless I set the external drive to SCSI 0. This way I can boot the computer, but the internal drive won't show up on Micronet because SCSI 0 is being used by the external drive. I'm 100% sure it's the hard drive causing the problem because I have another Portable M5126 and: 1. M5120 works fine with M5126 hard drive 2. M5126 also freezes the same way with the M5120 hard drive I know I can look for another Portable Drive or buy a SCSI2SD, but I though I could get this drive running again, and it bothers me. Also my plan was to fix it and resale, so I don't want spend a lot on it. If anyone can give me some advice I'll appreciate it. Thank you very much!
  6. GregorHouse

    New SE and Miniscribe deep-dive

    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
  7. GregorHouse

    MiniScribe 20MB Apple 20SC HD

    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.
  8. GregorHouse

    MiniScribe 20MB Apple 20SC HD

    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?
  9. GregorHouse

    New SE and Miniscribe deep-dive

    Yes I did. Doesn't matter, I found it elsewhere. Thanks!
  10. GregorHouse

    MiniScribe 20MB Apple 20SC HD

    Nevermind, I think I got it
  11. GregorHouse

    MiniScribe 20MB Apple 20SC HD

    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. GregorHouse

    New SE and Miniscribe deep-dive

    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
  13. GregorHouse

    MiniScribe 20MB Apple 20SC HD

    It's odd, I've tried low formatting with FWB hard disk toolkit, it gives me an error (not specified). Quick format works fine and no bad sectors found, and once mounted it works just fine, I can write and run apps from there, and everything works normally. It's just when the drive initializes, which is when it's switched on or prepared for being formatted when the odd clicking appears. For some reason quick formatting and driver update works OK, but low formatting or Apple's SC Utility fails during the clicking part. The stepper motor works fine, because the drives behave normally once it's mounted and because my old drive does exactly the same clicking noise. Of course that one won't do anything else, as it has bad plates, but the initializing sounds are the same.
  14. GregorHouse

    New SE and Miniscribe deep-dive

    I didn't want to hoard this thread with an extended explanation, so I wrote a new one. If someone could give me any tips I'd appreciate, thanks!
  15. GregorHouse

    MiniScribe 20MB Apple 20SC HD

    Good afternoon (for me), I decided to write this thread apart from the other one about this device because I don't want to divert the attention from the main thread. So to put you in situation, I have a Macintosh Plus with an Apple 20SC HD that originally came with a 20MB MiniScribe drive. I love the sound of that hard drive and I'm looking to get it back. The original drive has mechanical problems and stopped working many years ago, but I thought the logic board was working. This drives are surprisingly expensive nowadays, so I found this one on Ebay and thought that maybe I could swap the boards and get a working device. I think this one was for an Apple II. https://www.ebay.com/itm/Miniscribe-Apple-20mb-Disco-Duro-Modelo-8425-Usado-Garantía/202583301784?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Thing is it's not working. When I switch it on it initiates normally and then the stepper motor starts to make a click-click noise, like forwards-backwards movement for a minute or so and then stops. It took for ever to format it using Silverlining, but eventually I was able to write and execute applications from the drive, so it kinda works. Only it takes more time than normal to initiate due to this click-click thing and it won't mount automatically, I have to do it with Silverlining, so I can't boot from it. Question one will be asking for help or tips on how to troubleshoot the unit as I have it now. I scanned for bad sectors with Silverlining and it said it had 1 error, providing no further information. I'll try with Norton Utilities when I get home and see if it does any better. Question two will be if is it possible to rewire the Apple II drive board to SCSI. Looking at both boards doesn't seem to have much in common, just a couple chips are the same, so I don't know if that would be possible. Of course I tested the unit when I got it and it didn't make that noise, so I assume I have a bad board. The (I think so) Apple II device board that came with the device: The SCSI board from my first device: The click-click noise: IMG_6275.MOV
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