I think I fried my circuit board

Started by blueherdim7, March 03, 2009, 08:28:03 PM

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blueherdim7

Well, I tried to add an input grounded battery power supply to my kay fuzz clone.  It worked perfectly before and now I can barely get any audible sound/fuzz from the engaged circuit.  The true bypass works fine.  I discovered that I had incorrectly connected the grounds to the board and input jack.  Can anyone give me an idea of what will most likely be destroyed? Will it be the caps/diodes/transistors...all of the above?

Thanks.

Jon
Pedals built=Kay Fuzz Clone...more to follow!

Mike Burgundy

Probably nothing is (even reversed voltage in that ckt would probably be ok - the trannies won't like it, but they'll live) - what exactly did you hook up wrong? What got connected to what?
Did you now a) wire correctly, b) wired back to how it was or c) leave the mistake in?

blueherdim7

Thanks Mike, Yep I put everything back to the way it was without a battery clip and still nothing.  After a little time with the DMM though I found a cap that was shorted.  Strange though because I took it out and it tested fine then, so I put it back in and I am back to where I started.  The trouble was I had the board ground and the power gound to the ring of the input.  Should have had the board ground to the sleeve and the power to the ring.  Not sure why this would cause me a headache.

Jon
Pedals built=Kay Fuzz Clone...more to follow!