Welcome to the Piano World Piano Forums
Over 2 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

SEARCH
the Forums & Piano World

This custom search works much better than the built in one and allows searching older posts.
(ad 125) Sweetwater - Digital Keyboards & Other Gear
Digital Pianos at Sweetwater
(ad) Pearl River
Pearl River Pianos
(ad) Pianoteq
Latest Pianoteq add-on instrument: U4 upright piano
(ad) P B Guide
Acoustic & Digital Piano Guide
PianoSupplies.com (150)
Piano Accessories Music Related Gifts Piano Tuning Equipment Piano Moving Equipment
We now offer Gift Certificates in our online store!
(ad) Estonia Piano
Estonia Piano
Quick Links to Useful Stuff
Our Classified Ads
Find Piano Professionals-

*Piano Dealers - Piano Stores
*Piano Tuners
*Piano Teachers
*Piano Movers
*Piano Restorations
*Piano Manufacturers
*Organs

Quick Links:
*Advertise On Piano World
*Free Piano Newsletter
*Online Piano Recitals
*Piano Recitals Index
*Piano Accessories
* Buying a Piano
*Buying A Acoustic Piano
*Buying a Digital Piano
*Pianos for Sale
*Sell Your Piano
*How Old is My Piano?
*Piano Books
*Piano Art, Pictures, & Posters
*Directory/Site Map
*Contest
*Links
*Virtual Piano
*Music Word Search
*Piano Screen Saver
*Piano Videos
*Virtual Piano Chords
Topic Options
#1773771 - 10/19/11 10:46 PM Right Speaker makes a buzzing noise
stamwick Offline
Junior Member

Registered: 11/18/10
Posts: 7
Hi, I have a Yamaha DGX 640.

Recently I have discovered that whenever I hit a low B-flat, the right speaker will make a buzzing noise when the note is sounded. The left speaker works perfectly fine, and hitting other notes do not reproduce this same problem. This is perplexing, and any advice would be greatly appreciated!

Top
(ads) Sweetwater / Roland
Yamaha Keyboards for Performance and Composition

Click Here


#1773776 - 10/19/11 10:54 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
Kawai James Offline
9000 Post Club Member

Registered: 09/06/07
Posts: 9196
Loc: Hamamatsu, Japan
Possibly the note is resonating with something inside the room or within the instrument's cabinet itself.

Does the issue happen when selecting a different instrument sound?
Does reducing the speaker volume improve things?

James
x
_________________________
Employed by Kawai Japan, however the opinions I express are my own.
Nord Electro 3 fan & occasional rare groove player.

"Richard, none of us could forget you have a CLP-990." - EssBrace, 2014

Top
#1773781 - 10/19/11 11:02 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
stamwick Offline
Junior Member

Registered: 11/18/10
Posts: 7
Thanks for the quick reply.

The issue happens when selecting virtually all piano sounds. Based on my observations, the other instruments (i.e. bass, organs) do not seem to have this problem.

When the speaker volume is significantly reduced, the buzzing sound is no longer there. However, my preference is to play in a louder volume, and whenever that particular note is hit, the buzzing sound becomes really apparent.

Top
#1773798 - 10/19/11 11:20 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
stamwick Offline
Junior Member

Registered: 11/18/10
Posts: 7
Ok I figured out the source of the vibration. Whenever the buzzing sound is heard, I press against the metal piece covering the right speaker, and the buzzing sound disappears. So now, for lack of a better way to resolve it, I have placed a weight on top of the right speaker, and it does reduce the buzzing to a huge extent.

If, however, there is a more ideal method to deal with this issue, please advise.. Thanks!

Top
#1773847 - 10/20/11 01:14 AM Re: Right Speaker makes a buzzing noise [Re: stamwick]
ChrisA Offline
3000 Post Club Member

Registered: 12/28/08
Posts: 3841
Loc: Redondo Beach, California
Originally Posted By: stamwick
...
If, however, there is a more ideal method to deal with this issue, please advise.. Thanks!


Silicone seal or some other kind of rubbery glue like hot melt glue. The hard part is making it look neat. Likely some disassembly required.

Top
#1773899 - 10/20/11 04:13 AM Re: Right Speaker makes a buzzing noise [Re: stamwick]
thurisaz Offline
Full Member

Registered: 09/29/11
Posts: 73
Loc: Finland
I'm glad to hear that you've found a simple solution. I've had a similar problem with my YDP-161 but haven't yet solved it. As in your case, my right speaker buzzes, but it does so in response to a D5. Oddly, the problem seems to come and go. I haven't figured out a pattern yet, though it seems to happen after I've been playing for a longer period. I've tried removing everything around the piano and even moving the piano itself to the middle of the room, but the problem persists. I got the dealer to replace the speaker and, when that didn't help, the keyboard, but it <i>still</i> happens.

So it's either a systemic problem with the 161s (which I think is unlikely, since I haven't found any other complaints online) or something particular to my setup. Next time it happens I'm planning to check the stand very carefully and also to move the piano into another room. If anyone has any other ideas, I'd be happy to hear them.
_________________________
Yamaha Arius YDP-161

Bach Prelude in C (BWV 846)
Petzold Minuet in G minor (BWV Anh 115)
Beethoven Moonlight Sonata, first movement
Working on: Alfred's Adult Piano Level 2, Satie Gymnopedie N. 1

Top
#1773918 - 10/20/11 05:37 AM Re: Right Speaker makes a buzzing noise [Re: stamwick]
Dave Horne Offline
5000 Post Club Member

Registered: 07/07/04
Posts: 5276
Loc: Vught, The Netherlands
Open it up and take a look, that's what I'd do.

I opened up my old GranTouch and rattle proofed it. I tied wires together and wedged foam anywhere a potential problem might occur.
_________________________
website

mp3\wav files

AvantGrand N3, CP5

Top
#1773981 - 10/20/11 08:32 AM Re: Right Speaker makes a buzzing noise [Re: stamwick]
MacMacMac Offline
3000 Post Club Member

Registered: 09/24/09
Posts: 3824
Loc: North Carolina
If it's in warranty, I'd call the maker and have them perform the necessary service.

Top
#1774164 - 10/20/11 03:04 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
thurisaz Offline
Full Member

Registered: 09/29/11
Posts: 73
Loc: Finland
It is still under warranty, but it's hard to get it fixed because the problem is intermittent. I called the dealer and the sent out a tech; the piano was fine when he visited, but he replaced the right speaker on my request. When that didn't help, I called the dealer again. They took my keyboard (but not the stand) and couldn't find anything wrong with it but, again, replaced it just based on my say-so.

Given that I've been through three speakers and two keyboards, I'm starting to think it's unlikely that it's a problem with the unit. On the other hand, given that the problem persists when I move the piano around the room, it's hard to believe that it's something resonating near the piano. To be honest, I'm a bit stumped...
_________________________
Yamaha Arius YDP-161

Bach Prelude in C (BWV 846)
Petzold Minuet in G minor (BWV Anh 115)
Beethoven Moonlight Sonata, first movement
Working on: Alfred's Adult Piano Level 2, Satie Gymnopedie N. 1

Top
#1774175 - 10/20/11 03:14 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
MacMacMac Offline
3000 Post Club Member

Registered: 09/24/09
Posts: 3824
Loc: North Carolina
Did you mention earlier that you can press on the speaker (grille?) area to stop the buzzing?

If so, I wouldn't have asked for a speaker replacement.

It's more likely that the vibration is either in the speaker grille cover, or in the mounting of the speaker to the cabinet (screws or other attachment), or is coming from some other component vibrating via sympathetic resonance.

Top
#1774185 - 10/20/11 03:33 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
thurisaz Offline
Full Member

Registered: 09/29/11
Posts: 73
Loc: Finland
No, it was the OP who managed to solve their problem by pressing on the grille. I haven't been able to make the buzzing stop by pressing anywhere, unfortunately.

Since the entire keyboard (including speakers) has been replaced, I think the buzzing must be coming from resonance in the cabinet (which wasn't replaced). I've looked over the cabinet and everything seems tight. The piano is behaving at the moment, but next time I have a problem I'm going to check the cabinet very carefully.
_________________________
Yamaha Arius YDP-161

Bach Prelude in C (BWV 846)
Petzold Minuet in G minor (BWV Anh 115)
Beethoven Moonlight Sonata, first movement
Working on: Alfred's Adult Piano Level 2, Satie Gymnopedie N. 1

Top
#1774751 - 10/21/11 04:37 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
thurisaz Offline
Full Member

Registered: 09/29/11
Posts: 73
Loc: Finland
My piano started buzzing tonight. For the first time ever, I was actually able to make it stop. (Previously, I've just waited and it would stop by itself.) I removed the screws attaching the keyboard to the cabinet and the buzzing stopped; I'm hoping this wasn't just a coincidence. I've added a bit of rubber between the mount (on the stand) and the underside of the keyboard and reattached the screws. Since the problem comes and goes, I'm not sure if I've actually fixed it or if it just went away again. I'll give it some time and then report back either way.
_________________________
Yamaha Arius YDP-161

Bach Prelude in C (BWV 846)
Petzold Minuet in G minor (BWV Anh 115)
Beethoven Moonlight Sonata, first movement
Working on: Alfred's Adult Piano Level 2, Satie Gymnopedie N. 1

Top
#1775648 - 10/23/11 11:55 AM Re: Right Speaker makes a buzzing noise [Re: stamwick]
rnaple Offline

Silver Supporter until April 24 2014


Registered: 12/23/10
Posts: 2106
Loc: Rocky Mountains
Is this buzzing a 60 hertz humm?
If so. I have had an intermittent 60 herts humm in a studio monitor. Found it was actually too much load for the source. When a stronger source fed the monitor, it stopped. This source is pre amp level. The monitor has an amp in it.
_________________________
Ron
Your brain is a sponge. Keep it wet. Mary Gae George
The focus of your personal practice is discipline. Not numbers. Scott Sonnon

Top
#1775769 - 10/23/11 04:09 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
thurisaz Offline
Full Member

Registered: 09/29/11
Posts: 73
Loc: Finland
No, it sounds more like some kind of vibration/rattle than a hum. It hasn't been a problem this weekend, though, so I'm hoping the added rubber actually fixed it, but I'll wait a bit longer before saying so for sure...
_________________________
Yamaha Arius YDP-161

Bach Prelude in C (BWV 846)
Petzold Minuet in G minor (BWV Anh 115)
Beethoven Moonlight Sonata, first movement
Working on: Alfred's Adult Piano Level 2, Satie Gymnopedie N. 1

Top
#1778162 - 10/27/11 01:09 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
thurisaz Offline
Full Member

Registered: 09/29/11
Posts: 73
Loc: Finland
Just an update: the problem hasn't recurred even though I've had some longer playing sessions, so I guess the rubber did the trick.
_________________________
Yamaha Arius YDP-161

Bach Prelude in C (BWV 846)
Petzold Minuet in G minor (BWV Anh 115)
Beethoven Moonlight Sonata, first movement
Working on: Alfred's Adult Piano Level 2, Satie Gymnopedie N. 1

Top
#1998404 - 12/12/12 02:25 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
Christopher C Offline
Junior Member

Registered: 12/12/12
Posts: 1
I had the same thing happening as well, and I found a solution that worked well.

The right speaker on my Yamaha YDP-223 would buzz whenever I played the D above middle C. It would buzz a bit less when I played the other Ds. I could also hear a faint buzzing if I struck the keyboard fairly hard near the center when the keyboard was powered off.

I opened up the piano (by removing the top 3 screws in the back and then pulling the top piece of wood forward to the keys). The buzzing was coming from a clear plastic enclosure around some electronics and a giant capacitor, just behind the right speaker. I've attached a picture where this is outlined in red (because it's clear it's otherwise a bit hard to make out in the picture). The clear plastic enclosure vibrated at about a D when touched.



I damped the plastic with ball of medical tape (another picture attached), and the problem went away completely.



Hope this helps!

Top
#1998418 - 12/12/12 02:53 PM Re: Right Speaker makes a buzzing noise [Re: stamwick]
spanishbuddha Offline
2000 Post Club Member

Registered: 11/08/09
Posts: 2361
Loc: UK
I had a buzz with my previous DP a Kawai CN33 that I could not track down. The noise eventually stopped when I moved it to another room. I have since discovered the cause of the buzz was a wall clock in the original room.

Top
#1998563 - 12/12/12 08:07 PM Re: Right Speaker makes a buzzing noise [Re: spanishbuddha]
xorbe Offline
500 Post Club Member

Registered: 07/31/12
Posts: 572
Loc: Mt View, CA
Originally Posted By: spanishbuddha
I had a buzz with my previous DP a Kawai CN33 that I could not track down. The noise eventually stopped when I moved it to another room. I have since discovered the cause of the buzz was a wall clock in the original room.

Like figuring out that the bad rattle in your car is actually the loose change in the ashtray, lol.

Top
#2010520 - 01/07/13 10:28 AM Re: Right Speaker makes a buzzing noise [Re: xorbe]
TonyTrout Offline
Junior Member

Registered: 01/06/13
Posts: 2
Loc: North Carolina
I'm a "newbie" here and I'm having almost the same problem as mine but mine involves the upper register of the keys (both the black and white keys) and when I hit either one of those notes, a buzzing sound will occur and there's virtually no sustain to them, either. I've sent the keyboard (it's a Yamaha YPG-640X 88 weighted-key DP) to the local music shop I bought it from but they can't seem to find any problem - but I know my ears when I hear a different sound than what I've been getting. It does it on all piano settings as well. cry

I'm un-sure of which step to take. I bought the keyboard back in 2011 and I'm not sure if it's still under warranty.

What would you professionals recommend?

Sincerely,
Tony Trout

Top

Moderator:  Piano World 
What's Hot!!
HOW TO POST PICTURES on the Piano Forums
-------------------
Sharing is Caring!
About the Buttons
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

The world's most popular piano web site.
-------------------
PIANO BOOKS
Interesting books about the piano, pianists, piano history, biographies, memoirs and more!
(ad) HAILUN Pianos
Hailun Pianos - Click for More
ad (Casio)
Celviano by Casio Rebate
Ad (Seiler/Knabe)
Knabe Pianos
Sheet Music
(PW is an affiliate)
Sheet Music Plus Featured Sale
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
(ad) Lindeblad Piano
Lindeblad Piano Restoration
New Topics - Multiple Forums
Rare Time Signatures
by caters
4 minutes 29 seconds ago
has anyone tried the Focal alpha 50s or 65s for monitoring?
by dire tonic
Today at 11:54 AM
2015 Concerto Competition "Theodor Leschetizky" NY
by Piano World
Today at 11:49 AM
Valletta International Piano Competition, Velletta, Malta
by Piano World
Today at 11:45 AM
Cleveland International Piano Competition
by Piano World
Today at 11:42 AM
Who's Online
157 registered (accordeur, Alan F, alfredo capurso, 42 invisible), 1624 Guests and 10 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
76376 Members
42 Forums
157890 Topics
2318847 Posts

Max Online: 15252 @ 03/21/10 11:39 PM
(ads by Google)

Visit our online store for gifts for music lovers

 
Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
 
Our Piano Related Classified Ads
|
Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World | Donate | Link to Us | Classifieds |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | Press Room |


copyright 1997 - 2014 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission