Why is my Mac 128k behaving this way?

Discussion in 'Apple Collectors' started by macpokerstars, Jul 21, 2012.

  1. macpokerstars macrumors member

    Joined:
    Sep 29, 2010
    #1
    Hi,

    I have a Mac 128k and it's makes weird noises. And every time it makes that noise, the screen shakes and shrinks.

    I have posted a video on youtube:

    http://www.youtube.com/watch?v=3ghlltnzEnM

    You should put the video in full screen because it's small.
    Listen closely to the sounds and look at the edge of the screen; it slightly shrinks every time.

    Then when I start a program like notepad, it crashes and eventually gives me the "bomb alert" and prompts me to restart.

    What is wrong?

    Note: it's an 110V version, and I had plugged it into 220V and messed the power circuit. I had it repaired though, so on theory it shouldn't have any incidence, right?

    Thanks a lot for your help

    Regards
     
  2. roadbloc macrumors G3

    roadbloc

    Joined:
    Aug 24, 2009
    Location:
    UK
  3. macEfan macrumors 65816

    macEfan

    Joined:
    Apr 7, 2005
    Location:
    Forbidden, you do not have access to that server
    #3
    Sounds like an analog/power board issue. When you run programs it requires more energy and the power board is struggling to provide enough current. Thus it's like a voltage drop and the screen begins to shake.
     
  4. MacTech68 macrumors 68000

    MacTech68

    Joined:
    Mar 16, 2008
    Location:
    Australia, Perth
    #4
    Could be that it needs a voltage adjustment. If you've not taken the back off yourself before, you may not find it too easy.

    68kmla.org/files/classicmac2.pdf
     
  5. macpokerstars thread starter macrumors member

    Joined:
    Sep 29, 2010
    #5
    Hi everyone,
    thanks a lot for your responses.

    @MacTech68: is this something that I can fix by myself, by opening up the Mac? Or do you think a pro should take care of it?

    Thanks again

    Regards
     
  6. MacTech68 macrumors 68000

    MacTech68

    Joined:
    Mar 16, 2008
    Location:
    Australia, Perth
    #6
    Experience tells me that if you're asking, you're better off getting somebody else to handle it for you.

    Sincerely :)
     
  7. G51989 macrumors 68030

    G51989

    Joined:
    Feb 25, 2012
    Location:
    NYC NY/Pittsburgh PA
    #7
    If you have to ask, don't try it yourself.

    Apple can't help you out with this issue, try to find a PC shop with some older employees, they might be able to help you out.
     

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