Re: Quality problem with RXTXv6.1 circuit board
- --- In email@example.com, "kb9yig" <raparks@...> wrote:
> I have received three reports from RXTXv6.1 kit builders concerningI suggest candling the board before assembly. Hold the board up to
> one or more shorts between circuit board pads and the surrounding
> ground plane.
the light and view the bottom of the board, looking for dark spots
shorting between the ground plane and the pads. Test suspect spots
with an ohmmeter.
I once had a batch of 550 small boards that had such a problem. I
couldn't complain too much since 50 of the 500 were free, but I did
have to find a way to weed out the bad boards (ended up being between
10 and 20 of the total). The problem was that the bad boards were
just shy of being fully etched in the bad spots. Once I figured out
that the shorts could be seen this way, I was able to identify all of
the bad boards. If the RXTX boards have a similar problem, it should
be possible to see the shorts.