Restoring an Apple II+ - Help w/ random jumper?

Discussion in 'Mac Basics and Help' started by Bartmaster1234, Jul 4, 2015.

  1. Bartmaster1234 macrumors newbie

    Bartmaster1234

    Joined:
    Feb 17, 2013
    Location:
    San Francisco, CA
    #1
    Hi,

    Apparently there is no forum for legacy Apple computers, so I'll just post it here.
    I have an Apple II+ I'm restoring, and I found this random jumper cable connecting the motherboard to a single pin on a ROM socket. (The wire in question is the seemingly randomly placed red wire.)

    Is this important? What is it's function? I want to clean under the mobo but I'm afraid to unplug it, lol.

    More pictures: http://imgur.com/0977Wlx, http://imgur.com/5UErEQG, http://imgur.com/3XQ2U5Z, http://imgur.com/adGejwB


    [​IMG]
     
  2. jruschme macrumors 6502

    jruschme

    Joined:
    Dec 20, 2011
    Location:
    Brick, NJ
    #2
    I believe that is what is called the "Shift Key Mod", a common mod of the period.
     
  3. mrichmon macrumors 6502a

    Joined:
    Jun 17, 2003
    #3
  4. redheeler macrumors 603

    redheeler

    Joined:
    Oct 17, 2014
    #4
    There is, actually. Apple Collectors
     

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