strange problem with the electrical system of my home

[Maylord.war]

Thanks for the reply

Dmitri the Trim pot connection are good. I tested another condition, if i put the single piezo without the trim pot the problem is present but the Rim note is activate when i hit pretty much hard, instead with trimpot turned up at some koHm the hit is a little hard for generate Rim note, but at the same time is present.

The stereo jack are 3.5mm

http://www.elettronicalatini.it/images/ ... -404_3.JPG

Dmitri the electrical crosstalk is possible only from hardware problem?

thanks a lot

[dmitri]

Dmitri the electrical crosstalk is possible only from hardware problem?

Most likely. Btw, are you sure you are using 4851 and not 4051 MUXers?

[Maylord.war]

Yes Dmitri, i use all 74HC4851

I don't know if the electrical crosstalk is caused from my input - jack - piezo or only from PCB.

I have replaced the Capacitor but i have the same problem.

[dmitri]

I'm out of ideas.

[kupooglop]

Have you tried a mono jack? Since you only have one zone with one piezo, you don't need the stereo jack. I understand you bought a lot of stereo jacks at a low price. Just a suggestion. Another suggestion is to wire up a 10K-ohm resistor & switch to the open ring. That way it would be wired like 2-zone cymbal. kind of.

[Maylord.war]

DIY approach is a pad or some other hard surface of the trap? Secondly, you say you are using a stereo jack. What is the connection of the ring? It is a open it?

Hi, thanks for your interesting, yes the Ring is open. Only the tip is connected to sleeve with piezo