On 16 Sep 07 at group /sci/electronics/repair in article
(Bjarne) wrote:

I have a BOSS HC-2 hand clapper that is broken

The problem is that it makes crackling noise when I touch the pcb.
Since the audio connecters are wired to the pcb it crackles whenever
the cord is touched.

I have almost zero experience in repairing stuff but I want to learn,
and since it's not a very expensive item, I think it makes sense to
practice on it. Taking it appart it looked to me as at least of the
capacitors had leaked? Could that generate crackling noise?

I took this pictu

http://www.bgst.dk/pcb.jpg

What do I do?

I think, that's some glue (sometimes waxe) to fix parts and not caused
by leaked capacitors. It's not a perfect but cheap/common method to
prevent failures from vibrating parts or changing values/adjustments in
some high-frequency application.

I don't think, that that's your problem. Look for could solder points,
bad (corroded) contacts, broken copper, cracks on the pcb...


Saludos Wolfgang


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