CROSSTALK CYMBAL SOUND WHEN STRIKING BASS DRUM ON DTXTREME

As a 40 year guitarist and repair technician I had to laugh at this until I thought about my younger days of starting out. What I see here is that you made a momentary trigger out of a stomp box that apparently had problems, that you think you can build an electronic bass drum to play it with. Is this correct? See, the amp only gives a bass drum sound ONLY if a bass drum sound goes through it. Amps only provide audio power to the input signal. Where to get you bass drum sound is what you need to find. I believe you are thinking of a sample. A sample is an actual recorded sound of a bass drum that you could actually trigger by stepping on that button. You could find this on most cheaper casio, yamaha, emerson, radioshack, keyboards or drumpads or any of those amateur toys. Most of them allow a trigger pedal to be plugged into it and operational. Now, after you find something with a bass drum sample that you can trigger with your pedal, that device should allow you to plug it into an amp to amplify it. I hope I didn't confuse you much and had a close perspective of what you tried to describe. Please let me know if I can help further.

Most likely he crosstalk setting to high

Verify the sound in headphones directly from the unit. The cymbal MAY be panned to one side or the other and will require higher frequency response than some of the piano notes.

Check your cables are fully plugged in.

If you leave an input open they MAY cross couple... try plugging a set of headphones into the cymbal input jack... this will ground the cymbal input... then see if you still get the cymbal sound... IF you STILL get the sound, then the multiplexor that scans the input has a problem and you need to take it for repair. Repair on the surface mount boards is not a DIY without proper tools and skills. If the grounding stops the cross coupling, then you MAY have a problem with the cymbal or its cable.

It sounds like the sensor is bad in the unit... If you have only had it a few weeks, exercise your warraaanty for replacement. Repairing the piezo sensor is NOT really a DIY project.

First thing to check is if the vibrations of the bass drum amplified MIGHT be triggering the cymbal pickup. Damp the cymbal pad with your hand and see if it still does it. If not, then shield the drumset from the amplified output.

If this does not prevent the problem look for a grounding problem of the triggers.

I'm not familiar with this kind of keyboard, but it is almost certainly that you have 2 parts (2 instruments) layered together. In this case a bass and a cymbal. This is a feature, not a malfunction of every multitimbral keyboard. Multitimbral means you can play more than one instrument at the same time. This is good as you can create some nice fat sounds, but put the wrong instruments together and you'll have the problem you're experiencing. My suggestion is that you read what the manual says about layering or mixing parts. There you should find instructions on how to turn one of the instruments off. You can also try to google the words "how to parts layer (or sound layer, or combine sounds) on the Yamaha S80". Good luck.

Listen to the output with headphones to check for noise.

OFTEN the output of a drum machine is CORRUPTED by an inadequate sound system. The waveforms generated by a drum machine tax the sound systems. A bass drum output can drive the speaker cone such that it goes beyond the linear range that the speaker and amplifier can handle and this appears as "noise". The noise may sound like a buzz or totally break up.

Turn the volume down and see if EXACTLY the same noise appears at low levels. If not, then saturation of the amp and speaker is likely. Continued use while it is doing that will often destroy the speaker.

well i am not sure what r u talking about,but as i met the same problem,i assume that you mean you lack one cable...What you should do is:
1.Connect the cable to the cymbal.Then connect it the ending of the cable with bass drum(not with the device)
2.Connect the bass drum with the device,as there will be 2 cables in the bass drum.Then plug it into the device & you will be ok.