Roland V-drum Trigger Repair

Posted by Mitch @ on 1/25/2018 to News
When a head trigger, Roland or any other brand/build, isn’t performing like it “used to,” it is because one or both components have degraded and no longer deliver the triggering performance it used to.  These two components in a any head trigger system is a ceramic piezo (27mm or 35mm in diameter) and a foam cone (or other shaped foam energy transfer interface). 

These components break down with use (normal wear-n-tear) or damage. 

Just like an oil change in your vehicle that maintains engines performance, you have new engine oil and a new oil filter - they are done hand-in-hand, at the same time, because both the oil and the filter degrade and lose performance in tandem.  The same degrading process occurs with a ceramic piezo and a foam cone interface over time - they both lose their ability to maximize performance as they naturally break down and are ultimately damaged from a beating.

Just replacing the cone, like so many e-drummers do, is like changing the oil filter, but not changing the OIL.  That is just wrong!  Do them both at the same time while under the hood (removing your mesh head)!  Many just replace the cone and then a few months later, ask why their trigger performance got a short-term boost/improvement, but then started to fail again, even though they have a relatively new cone on top of the original piezo.

Do yourself a favor and complete the whole job the first time around!  If you just replace the cone, remember this short essay a few months down the road when your piezo waves the white flag.



Date: 3/6/2018
Repaired a Roland TD-10 kick drum that was intermittent and just unreliable as far as the signal. The piezo and cone replacement replicated perfectly the old worn parts and the resulting height was exactly as the original when reassembled. Not sure the original piezo had a problem, but for a few extra bucks why not replace it while you're there. The drum works and sounds like new. Thanks guys!
Date: 2/13/2021 2:02:03 PM
Daniel, how did you take the KD-10 apart to replace the components? I see nothing listed online with instructions of how to get it opened. Please advise. I have indentations where the pedal heads hit the pad, and I would like to change out the foam.
Chris Gove
Date: 3/26/2018
Fantastic stuff! Just replaced my piezo elements and what a fantastic improvement, my 12 year old PD-125 plays like new! The job was quick and easy thanks to the instructions Mitch sent. The parts were less expensive than Roland’s too. To sum it up, good stuff, great prices, fast shipping and fantastic customer support! You’d think I bought a drum kit not just a few parts. Thanks Mitch! I’ll be ordering more, want to redo the whole kit now!
Terry Hopper
Date: 9/26/2020
I have two Handsonic-15s with two missing notes each, plus a floppy pad that is no longer attached in some places. Other notes are gradually getting less responsive. The Roland authorized repair shop can't get parts, The parts division has been closed for six months now and nobody knows when they will reopen. Any info, or have any suggestions?
Date: 9/27/2020 8:46:40 AM
Hi Terry - The Handsonic is a little outside my specialty, but if any of the poor performing trigger zones use a small diameter piezo, I offer 20mm, 27mm, and 35mm piezo's. You will have to disassemble to look inside the zones not performing to lay eyes on what style of trigger is being used. Let me know if you find a piezo and measure its diameter.
Michael Skory
Date: 11/3/2020
I have a PDX6 dual trigger pad here on my bench. Th piezo is definitely pad. The bad one is 35mm. I have 27mm in stock. Should I use it? Question 2 How do I check the cushion plate mic?
Date: 11/4/2020 3:26:34 PM
Hi Michael - While a smaller diameter 27mm piezo will work in place of the 35mm piezo, you will experience less sensitivity in that pad after swapping for a 27mm piezo. You'll have to compensate by turning up the sensitivity in your module pad settings as well as hitting the pad harder to get the same response you would've gotten from a 35mm piezo. On Q2, not sure what a "cushion plate mic" is - sorry.
Date: 12/6/2020
When I open the case and press the piezo with my finger it sounds great and strong. However, when it's put back together one hit with the drumstick and it goes away entirely again. Do I need a new one or am I missing something? (Roland HD-1 V Drum)
John-David Giddens
Date: 5/22/2021
I have a Roland PD 105 that I bought used as a snare. Sometimes when I hit the rim sensor to create a rim shot it will trigger a snare sound. Please let me know what components I need to repair. Thanks!
Randy Iamurri
Date: 6/29/2022
Getting Radome snare hits without hitting the head ! Help what should I do ?
Date: 11/28/2022
Where can you purchase the piezo and foam parts for Vdrums?
Date: 4/13/2023
What is the best source for the parts? I do not see them listed on the Roland site.
Zdenko Sigi Martulas
Date: 4/19/2023
I have a Roland TD-20 V Drums. I would like to change the triggers to all pads, PD 105 2X, PD 125 2X, KICK 1X. Please let me know where I can order and buy them.
Zdenko Sigi Martulas
Date: 4/19/2023
I have a Roland TD-20 V Drums. I would like to change the triggers to all pads, PD 105 2X, PD 125 2X, KICK 1X. Please let me know where I can order and buy them.

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