Question about Garmin Nuvi 660 GPS Receiver

1 Answer

Won't turn on or off

I can get it on by pluging it in then unplug, then hit stay on. To turn it off have to do the same procedure. In other words it works fine but the main power switch does nothing.. it is one year old and just starting doing this.
Thanks

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  • weatherbydoo Jun 10, 2008

    i also have the same problem, unit will not turn off, unless connected to car charger.... i have had the unti about 3 months and it just started doing this. I have the garmin Nuvi 650

  • bcavan Jun 12, 2008

    My Nuvi 360 on/off button does not work. One year old.Another 360 I had the same problem.

  • Anonymous Dec 09, 2008

    I have the same problem with my Garmin 650

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1 Answer

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  • Garmin Master
  • 2,124 Answers

This is a common problem with the Nuvi series. The on/off switch is a surface mount switch that is mounted vertically off of the main PC board.

The problem is, that there is no support behind the switch, so when you press down the button, the solder leads of the switch are stressed and eventually break off the main PC board. This is a design flaw and could have been easily prevented by wedging a small piece of plastic between the rear of the switch and the SD card housing to give the switch support. Also, the solder pads for the mechanical connections of the switch could have been made bigger, allowing for more surface area and more solder application.

I have repaired many of these before and I'll be posting a step-by-step procedure on how to fix this and prevent it from happening again.

I must point out however, that in order to make this repair, you will need to have skills in dissassembly and soldering.

- Jim



Posted on Jun 19, 2008

  • 1 more comment 
  • SHARCNET-USA
    SHARCNET-USA Jun 20, 2008

    Also, please only attempt this procedure if your unit is out of warranty.



    - Jim

  • SHARCNET-USA
    SHARCNET-USA Jun 20, 2008

    Please contact me if you would like for me to repair this problem on your unit.



    - Jim

  • SHARCNET-USA
    SHARCNET-USA Aug 09, 2008

    Note to all Garmin Nuvi Users with a Defective On/Off Switch:

    1. In order to repair this problem, you need to have surface mount desoldering/soldering skills as well as the appropriate soldering tools and case dissassembly tools. Without these things, you take the risk of further damaging your Nuvi, possibly making it impossible to repair.

    2. Resoldering the switch is not going to resolve the issue long-term. In some cases, the switch can not be resoldered and additional rework must be performed.

    3. In order to fix this problem once and for all, the switch needs to be mechanically secured better to the main PCB using pre-tinned buswire. In addition, a custom-fit piece of plastic needs to be glued behind the switch to give it additional support.

    FAILURE TO DO THE ABOVE WILL RESULT IN THE ON/OFF SWITCH BREAKING AGAIN.... GUARANTEED!

    For a reasonable price, I will repair youf Nuvi on/off switch and put in the modications so it doesn't happen again. Repair takes 1 day, units are sent back the next day. Please contact me at KS3R at sharc dot net if interested. I have references.

    - Jim

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