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# 1   2013-08-13 16:45:58 No connection between the Open4 and the daughter board

Etienne.C
Administrator
Registered: 2012-12-04
Posts: 71

No connection between the Open4 and the daughter board

Sometimes, when we plug the daughter board to the Open4 base there is no connection between them.

This is due to short external connection pins (see in red below) on the first version of the daughter board.

If you have this connection issue, the work-around consist of adding a thin layer of solder on both sides of the external pins.

ftp://www.raisonance.com/pub/Support/FAQ/images/top-bottom-DB.jpg

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