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Nintendo 101 schematic

Discussion in 'Electronic Repair' started by oldfogie, Sep 11, 2005.

  1. oldfogie

    oldfogie Guest

    Schematic needed for Nintendo 101. This is the top load version of the
    original NES. The schematic may be the same for both, so would like to
    obtain either.
    Unit does not work, the 5 volt regulator gets very hot so seems to be a
    short or low resistance somewhere.
    It has a double sided board, and hard to trace the path from the regulator.
     
  2. James Sweet

    James Sweet Guest

    Schematics are probably not available to anyone but an authorized service
    center. 5v will go to the power pin of each IC, that's normally the
    upper-left corner. Check for shorted capacitors, particularly if any
    tantalum units are used, a schematic will not be very helpful, there's no
    getting around having to remove parts and test them.
     
  3. Hey there:

    I don't know if this helps you or not, since this is for the original
    NES, but a schematic can be purchased here:

    http://www.electronix.com/catalog/product_info.php/cPath/1_25/products_id/701

    I am assuming that these schematics are simply reverse-engineered, and I
    cannot vouch for their quality. I have purchased other things (mostly
    VCR and microwave parts) from this company, however, and I've not had
    any trouble.

    Just curious: what kind of symptoms are you having with the system?
    Are you seeing a power indicator at all?

    Hope it helps,
    -Darrick
     
  4. Guest

    Quite a few people have made hardware and software emulators of the NES
    line. I'm sure that there are schematics floating around somewhere. Try
    the emulator community if you haven't found anything yet.

    In the meantime, have you checked the cartridge socket for bent pins?
     
  5. oldfogie

    oldfogie Guest

    Thanks for replies, sorry I'm late getting back, been tied up on other
    things.
    Guess I'm going to have to forget about repairing this, with the double
    sided board would just about HAVE to have one of the expensive soldering
    stations such as Pace, that sucks the solder out after it's melted.
    I'll probably just put it back on ebay and sell as is, maybe get some of the
    money back I paid for it. I was taking a chance that it would be something
    simple to fix, such as problems with the AC adapter, or the TV connection
    adapter (forget proper name for it), but luck wasn't with me! I replaced the
    5 volt reg. but no help.
    Hey there:

    I don't know if this helps you or not, since this is for the original
    NES, but a schematic can be purchased here:

    http://www.electronix.com/catalog/product_info.php/cPath/1_25/products_id/701

    I am assuming that these schematics are simply reverse-engineered, and I
    cannot vouch for their quality. I have purchased other things (mostly
    VCR and microwave parts) from this company, however, and I've not had
    any trouble.

    Just curious: what kind of symptoms are you having with the system?
    Are you seeing a power indicator at all?

    Hope it helps,
    -Darrick
     
  6. SMT soldering/desoldering doesn't necessarily have to be an expensive
    proposition. If you have nothing to lose, consider CHIP-QUIK; I was
    able to repair a surface-mounted CF socket on my digital camera with it.

    Sorry to hear about your troubles, though. I understand that the
    top-loading model NES is rather hard to come by, with a commensurately
    higher resale value. I'm also told that the cartridge connector is by
    far much more reliable than that of the original, front-loading model.

    Good luck,
    -Darrick
     
  7. Guest

    If you don't have an expensive desolderer, and you are removing a dead
    ic, an easy and cheap way to remove old chips is to simply cut all of
    the leads off. Then you can remove the package and take the leads out
    one at a time. Then you can use a braid to remove the solder from all
    of the through holes.
     
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