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Hi, My Garmin GPS 12 will not power on ... regardless of whether I use batteries or the AC adapter that sends juice into its interface port. This suggests to me that a circuit that gets power into the Garmin from ANY power source is broken... or maybe a bad contact for the "on/off" button?? I'm wondering if I can have a diagram of the wiring schematics so that I might pop this thing open and try to remedy the broken circuit?

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  • billbelzer Jun 04, 2010

    Thanks for the info. I'll contact Gamrin to see if they can provide the requested diagram.

    bill b.



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Hello there:
You can request a diagram from garmin and i think they even have a downloadable pdf formatted diagram you will just have to contact them to be sure then if so find your model number Also normally what happens on these units that quit is that their is a small fuse in the inside of these units that blow out so if you think you can open it up and see if the fuse is indeed blown then all you will have to do is to replace it ok
now if it is still under warranty you can send it back to garmin or have a local authorized make the repairs for you under the warranty ok
I hope this is very helpful for you
Best regards Michael

Posted on Jun 04, 2010

  • Michael Thomas
    Michael Thomas Jun 06, 2010

    Thanks bill please keep me posted on how this is going if needed i have more information that i can provide ok
    once again best regards michael



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