I recently had a client request I replace the stock GH3 action in her Yamaha CVP-305 with a Yamaha Natural Wood action, and I had an opportunity to do some experimenting.
The Yamaha GH3 keyboard action can be replaced with the NW-GH3 action, the GH3X action, or the NWX action. All four of the actions below seem to be interchangeable, with the features as listed:
Her favorite action was the NW-GH3. Although there’s some subjectivity, we mutually agreed that the natural wood actions were lighter than the plastic equivalents (which is a bit counter-intuitive initially), and that the escapement added perceived weight.
In other words, we found that the NW-GH3 action was the lightest action, perceptibly, and the GH3X was the heaviest.
I recently had a customer report their P105 was producing no sound, although occasionally, it emitted a scratchy noise. Attached to this post is a picture of the burned out chip I found inside the unit. The solution was a replacement DM board (Yamaha #ZJ2570000).
The Yamaha HQ100 is a so-called “gray-market” upright. A gray market piano is one that’s authentically manufactured by Yamaha, but is not intended for sale in a specific geographic region or country. Instead, it’s sold as “gray market” — a market that exists outside of the official distribution channels and is not authorized by the manufacturer. In this case, the HQ100 is the Japanese version of the Yamaha MX100II, with a few small modifications.
Like all Yamaha Disklavier uprights, Dampp-Chasers cannot be installed inside the cabinet. There isn’t any room. Instead, a backside system is installed between the support posts behind the piano. The back is then ensconced in a light fabric to keep the humidity-controlled air inside.
However, the HQ100 has one significant oddity: There are only two support posts. The double bucket system usually installed just doesn’t fit. So in this case, after communicating with Dampp-Chaser, I opted to install a full-size bucket on the rear of the system. A thin layer of foam or neoprene needs to be pasted to the sound-board side of the bucket, and a full-size baffle needs to be installed, but otherwise the system is installed like a typical back-side system. The dehumidifier brackets did require some bending to get them to fit properly.
For the Velcro, I used two feet of two inch wide Velcro, with the male side backed with a strip of neoprene. The picture is below:
As a professional piano tuner, I’ve had the privilege for several years of working at some the most beautiful music venues. Cadenza is nestled right in the heart of Freeport at 5 Depot St, and this venue attracts music lovers who come to enjoy live performances and the beauty of its Yamaha C7 grand piano.
From classical concerts to jazz nights, the musicians who grace its stage are some of the most talented and passionate. The piano itself is a magnificent instrument, and has been a centerpiece of the venue for many years. They take wonderful care of it. I have spent many hours tuning and caring for this beautiful instrument, and it’s well-loved by the performers who play on it.
Whether you are a music lover or simply appreciate the finer things in life, this venue and its piano are not to be missed. I highly recommend taking the time to visit and experience the magic of live music and the beauty of this magnificent instrument.
I’ve recently started recommending customers with worn-out floppy disk drives upgrade them to so-called “Floppy Disk Emulators.” There are a couple of these on the market, but it looks like the easiest to use and most reliable is the Nalbantov USB Floppy Disk Emulator. I use these regularly in Yamaha Disklaviers, but they can also be installed in keyboards. I install these quite regularly.
There are several reasons why you might want to replace an old floppy disk drive with a USB floppy disk emulator, including:
Increased reliability: USB floppy disk emulators are more reliable than traditional floppy disk drives, as they have no moving parts and are less susceptible to mechanical failure. Most customers reach out to me after their floppy disk drive has failed.
Compatibility: USB floppy disk emulators are compatible with modern computers, which may not have floppy disk drives built-in or may no longer support floppy disks.
Speed: USB floppy disk emulators transfer data faster than traditional floppy disk drives, making it easier and quicker to transfer large amounts of data.
Convenience: USB floppy disk emulators can be easily connected and disconnected, making it easier to transfer data between different computers or to store data.
Cost-effectiveness: USB floppy disk emulators are often more cost-effective than purchasing a new floppy disk drive or repairing an old one.
I’ve found some floppy disk drives now cost more than the replacement USB emulators, especially if they’ve had minimal use. And hardly anybody knows how to actually repair a floppy drive—that’s a nearly lost art.
After the Nalbantov is installed, you can use a single USB stick to represent up to 1000 floppy disks. Because it’s a floppy disk emulator, the Disklavier actually believes you’re inserting a different floppy disk. As you switch between virtual “disks” by pressing the arrows, you’ll see the display on the Disklavier behave as though you’ve inserted a new disk. Of course, if you have more than 1000 floppy disks, you can invest in another USB stick, although I haven’t run into this particular situation yet!
The USB stick that comes with the Nalbantov is a standard, full-size USB stick. This protrudes rather far, and I’ve now run into multiple circumstances where the drive has been damaged by an incautious pianist. See my post on the Best USB Stick for Nalbantovs. Hint: It’s the SanDisk Ultra Fit.
Some customers opt to install the Nalbantov unit themselves. Depending on the design, this is quite doable, although I don’t recommend attempting it with most Yamaha MX100II Disklaviers (see below).
With some generations of Disklavier (most notably some MX100II uprights), the floppy disk drives are mounted behind a shaped plastic piece. In these cases, you’ll need to cut away the old plastic facing (a pair of flush-cut nippers is helpful here), install the new drive, and put some kind of buffer around it. I’ve experimented with a few different choices for something functional and attractive. Purchasing neoprene strips is a cheap solution.
I have a 3D model in STL format of a floppy bezel that’s sized to fit around a Nalbantov. You can 3D print this yourself, or I can mail you one. I adhere it to the replacement Nalbantov with a little bit of hot glue, and then slide the whole assembly in.
For backing up your current Disklavier floppy disks to a format that can be stored on your USB stick, see my article on Backing up Disklavier Floppy Disks. They can then be moved onto a virtual “disk” with Nalbantov’s proprietary tool.
One or more keys play at full volume even though I’m hardly pressing them!
Keyboards use very sensitive contacts to determine how fast you’re pressing the key (or the velocity). A keyboard with dirty contacts (such as the one pictured below) will misjudge velocity, and will cause the key to play at incorrect or, often, persistently loud volume. In the case of the picture below, that wood chip would cause a perpetually quiet key—if it moved to the depression directly above it, then it would cause a perpetually loud key. Cleaning is sometimes an effective option.
They can also simply wear out. If you play your keyboard for hours a day, the rubber itself will eventually degrade, as will the graphite pads on the button. In that case, they’ll need to be completely replaced, which is typically possible for keyboards that are less than ten years old, but becomes progressively more difficult with age. Replacement is usually the best option.
In desperate times, if contacts just aren’t available, you can swap contact strips from the ends of the keyboards to replace keys you play more typically. There are products like Oak Tree Vintage’s Key Contact Repair Kit, but I view these as an absolute last resort. Direct rubber contact strip repair is a desperate measure.
One or more keys don’t play at all.
A common cause of silent keys are bad or damaged rubber key contacts. See above. They should be cleaned or replaced.
Another common cause of silent keys is a damaged or corroded key contact printed circuit board (PCB). These PCBs are, for late-model keyboards, typically available—particularly for Yamaha and Roland. They can also sometimes be repaired: In the case of the image below, some cleanup and a wire jumper fixed the problem.
My keyboard doesn’t turn on!
There are many common reasons for this. The most common, in order, are damaged power cords or adapters, a blown fuse, a damaged power inlet (see below), or a damaged power switch. It can also be a sign of an electronics failure somewhere else in the keyboard.
Start by replacing the cord. That’s something fairly inexpensive you can do yourself. Try to find a direct manufacturer replacement. If you require any assistance in this, you can contact me, or you can reach out to a local piano store. In the case of a power cord with an adapter, both the voltage and the polarity have to be correct.
Somebody broke off the power inlet on the back of the keyboard.
This is a common problem. Nearly every pedal inlet for nearly every keyboard is available. I replace them regularly, particularly in schools where the cord might get forcefully pushed or pulled! Depending on the way that it was broken, there might be some collateral damage. For instance, a Roland I repaired recently had the fuse assembly ripped off when the power inlet, acting as a battering ram, scraped the electronics off the rest of the inlet circuit board. However, there’s nothing particularly complicated on there, and their story ends happily!
I’ve got a Yamaha Clavinova and some keys are sticking.
This is a very common issue in Yamaha Clavinovas from the early 2000s. Unfortunately, the tails of the keys would crack, resulting in sluggish behavior. Then they would fully break, causing a sticking key. More than once, I’ve gotten a call after a rowdy child will walk up to the keyboard and spontaneously break a dozen or so keys—it’s not their fault. These keys can be replaced.
I typically don’t recommend doing them one-by-one unless you’re going to be replacing them yourself. It’s much better to replace the entire keyboard assembly or to replace all the keys. This is an expensive repair, but it’s much less expensive than a brand new Clavinova, and if the rest of the electronics are in good shape, it’s worth considering.
I’ve got a Roland RD-xxx and one or more keys are staying down. They seem loose.
Roland RD keyboards from the 2000s and earlier used plastic hammers that crack and break. Unfortunately, Roland no longer manufactures these hammers. If you have such a keyboard, you’re at the mercy of used parts dealers and eBay. I maintain a small stockpile for customers, but this condition is usually terminal.
This is a very distressing situation for me, so if you have any further information that might assist in fabricating these or are aware of a stockpile of these, please contact me. Currently, single replacements sell up to $100 on eBay.
I’ve got a Yamaha, and it makes a clacking sound when I let go of or hit a key.
Yamaha Clavinovas and portable keyboards have a strike felt and a rest felt. In nearly all cases, rest felts will wear out within a decade. This causes keys will make a clacking sound when released. With heavier use, strike felts can also wear out. Both felts are relatively easy to replace. Both lead to a noisy keyboard.
Some of my customers choose to upgrade their older Disklavier’s floppy drive to a Nalbantov USB drive, and want to know how to copy songs from their old Disklavier floppy disks so they can put them on USB. Some of them just want to be able to backup their disks so they can make new ones later. And some are interested in writing altogether new songs to their floppies so they can finally listen to something new!
This post is intended to help you read from, write to, or replace Yamaha Disklavier floppy disks.
If you want your floppy disks files saved on a more modern media, you can also mail your floppy disks to me (please reach out to me at [email protected] or through my Contact page).
If you’re adding new music to a floppy disk and have an older Disklaviers (including the popular MX100B), you’ll need to make sure the files are in Yamaha’s proprietary eSEQ format. Using the tools below, you can convert MIDI files to eSEQ so that it will speak your Disklavier’s native language!
Obtaining eSEQ Files from your Disks
Original Yamaha floppy disks are the best source of these files. However, floppy disks often don’t age well, and are very susceptible to sunlight and magnetic fields. (This is one more reason to back them up!)
Disklavier floppy disks cannot be natively read by your computer, which makes them difficult to backup. They use a very primitive form of copy protection.
Once you download DKVUTILS.ZIP from my site or theirs, you’ll need to extract it. The program that converts MIDI files to eSEQ files is MID2ESEQ.EXE. This program runs only on Windows, and does not seem to run with emulators. Reach out to me and I can assist with conversion.
You can also source files from Yamaha’s website, although this is the most expensive option. Many of their MIDI files have multiple instruments (or even limited piano), and are more designed for their keyboards and other MIDI devices. However, they do have an entire category of Piano Solos, and these are what you’ll want to search for when selecting files. When you download these, you get their associated MIDI files, which are comfortably sized for floppy disk purposes.
MIDI files that have only one track are called Type 0 files. MIDI files with multiple parts are Type 1. Sometimes, the piano will be spread between two tracks. In that case, you’ll find the resulting eSEQ has only half the notes it should. You can convert Type 1 to Type 0 files using the tool gn1to0.exe that’s also stored on my MEGA drive. This is a slightly cumbersome tool, but will either run on Windows or on Linux/Mac using Wine.
I am honored to be able to offer what I believe to be the most comprehensive list of piano teachers in the state, and will respond quickly to any updates you have for me. Some of these piano teachers are difficult to find elsewhere, and all are excellent.