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1spot noise?

Started by DWBH, December 20, 2008, 10:18:08 AM

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DWBH

I have a 1spot which I use to power my pedals (i use a daisy chain).
The problem is, when I plug in the DC jacks on my pedals, I start hearing some noise coming through my amp. As soon as I touch with the male on the female jack (the one on the pedal), that noise starts. And it's not from the daisy chain. If I do it with only the 1spot alone, it's the same. I've tried it on two amps (both in the same room).
Now, stupid question: my guitar (telecaster) isn't grounded properly, I'm afraid. Can this be the cause to the noise?

R.G.

R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

DWBH

#2
Some sort of hum... I guess. It's difficult to say.  :-\

R.G.

We very occasionally run into something like this. There are a couple of possibilities.

1. It is possible that you have a defective 1Spot. Our defect rate has been low, but it does happen sometimes.

2. Sometimes there are quirks in the AC power wiring which make a slight hum. Again, it doesn't happen all that often, but it can happen.

To separate out issues, I suggest you take your setup to another building and try it. That would eliminate (or confirm) number two.
We have actually found out how to make this completely disappear in all the cases where we can reproduce it, but the changes would require changing or removing certain parts that are effectively required by safety and EMI regulations. It is reasonably rare, but this can happen sometimes.

If the hum persists with both amps (good insight on your part to try with more than one amp!) in another building, then to eliminate number one, you might try taking your 1Spot to your dealer's showroom and reproducing it for the dealer, and also trying to reproduce it with another, new 1Spot. If yours is defective and within warranty, the dealer will probably help you with a refund or a replacement.

If none of these help , please contact service@visualsound.net for more help.
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

DWBH

Thanks R.G.
I'll try it out next week at rehearsal.
I've bought it online, so I don't know how should I do it if the unit is in fact defective.

R.G.

That is the problem with buying on line, all right.  :icon_frown:

If you're in the USA, you can contact your dealer or service@visualsound.net; outside the USA, dealers are the path for service.
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

hday

If you've got a good local guitar shop that carries these, pick one up and try compare it to the one you have. If it's the same problem, then return it. If it's better, return the broken one and tell them it didn't work. Sort of a dick thing to do, but they're not losing money.

In my town, there are a few good guitar shops and two mainstream guitar shops that don't treat their customers very nicely and I don't feel bad about doing that sort of thing there. One of those places happens to rhyme with Sitar Genter...  :icon_rolleyes:

DWBH

I bought it on Banzai (in Germany) [I'm in Portugal].
I'll see how it works out.

stumper1

QuoteSort of a dick thing to do..

Sort of?
Deric®