Don't tell me you're going to give up that easily. Do you know where it's s=
horted? If not, then it's pretty easy to find out using a welder. Just conn=
ect it to the power supply end of the cable and you will know immediately w=
here it's shorted. Be sure and do this outside because of the smoke!

If it's shorted at or very close to the connector then there is still hope.=
 =A0Keep looking around. =A0Somebody HAS to have one.

Cheers,
Robert
----------------------------------------
> Date: Tue, 4 Mar 2014 16:48:01 -0500
> From: cdenk@windstream.net
> To: piclist@mit.edu
> Subject: Re: [EE] Heat sinking a 3.3 VDC switching regulator
>
> Topic is dead :( :( Here's what I have tried:
> 1: Removed the heat sink and glued it back on with heavily reinforced
> with ground glass to give it a high density which I would think
> increases heat transfer. The old glue didn't look that good of contact:
> No power
> 2: Had a 3.3 volt auto power plug with 5' cable, connected it to the old
> GPS cable, using 2 layers of heat shrink overall with RTV inside
> everywhere. Had been reluctant to go this way due to harsh physical
> environment. The one vehicle has 3 outlets under front of passenger's
> seat. Aren't these little vehicles wonderful when trying to find a spot
> to mount something extra. :( No power. Took connection apart. While
> working on things, the old cable shorted internally making it scrap, and
> without that the GPS is usable only with (2) "AA" batteries. The unit
> end of the cable has a very special locking connector with pogo sticks.
> I don't see any way to open that up and slice a new cable. A couple of
> months ago, I did an exhaustive search for the auto adapter, some
> appeared in stock but when talking to the supplier, they haven't seen
> one for a couple of years. Not good when driving.
>
> The Old Lowrance Expedition C has color, earth and water contours, even
> the smallest streams, and roads with names, and find an address anywhere
> in the USA. It fits in a shirt pocket we have used it for driving and
> hiking. We did have the aviation version when we flew with the full FAA
> navigation database. Going to miss it. Need to find a replacement
> (without the aviation features)
>
> Thanks everyone for your input. :)
>
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