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DistributorPermalink Reply by Dany Thivierge on April 25, 2012 at 9:50am

Could it be simply the way you power your RX? 

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Permalink Reply by Taylor Collins on April 25, 2012 at 12:40pm

The receiver is running off a BEC from the copter.  The radio will not function (with.. or without the USB connected) unless the 3 cell LiPo is also connected....

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Permalink Reply by Taylor Collins on April 28, 2012 at 12:18pm

It turns out that it was the lack of a solder jumper on the tiny SJ1 bridge....  one dab of solder, and now the board is powered... with or without the USB connection.

Thanks for the help!

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3D RoboticsPermalink Reply by Chris Anderson on April 28, 2012 at 12:39pm

Taylor: your board should have arrived with a removable jumper already in place on the SJ1 pins. Wasn't that the case?  If not, when did you get it? Some of the earliest boards didn't have those, but the last thousand or so should have all come like that.

Whoops, sorry. I see you've got an APM1 board.  Never mind!

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Permalink Reply by Taylor Collins on April 29, 2012 at 5:52am

Chris,

Thanks for your concern.  I bought this Quad Arducopter "second hand" from a fellow on the Runryder forum. It was new, never flown... but previously owned....

-Taylor

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