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Short somewhere on output board

2012-12-02 by kgslug2

OK, so I now have a working PSU, onto the next problem! There appears to be a dead short (0 Ohms) between -15v and analogue ground (the black and blue wires in the power loom). Having unplugged the digital board I have traced the problem to the output board. Now I need to work out where on this board the problem could be.

Does anybody happen to know of any component that is likely to fail short across these two rails? I suspect a tantalum capacitor, cut there are quite a few of them...

I also note that there are quite a few kludges on my board - capacitors wired in series and piggybacked onto resistors. Is this normal?

Thanks
Kevin

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