DX-21

“I don’t have a way to listen to this but the screen works when plugged in. Return accepted if it does not work for you. I can provide more pics if requested! It is scratched a bit and plastic has some cracks.” Click here to visit listing on eBay

“For sale is this Yamaha DX-21 Synthesizer.

The synthesizer is in good condition for its age and works with no issues.”
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“Yamaha DX-21 digital synthesizer in good condition. Keyboard has been tested and all basic features & sounds are working properly. Synth dates to the mid to late ’80s. No dead keys. All buttons/switches/controls are functioning. Pitch bend and modulator wheels both work well. Display is clear and working. I did not test any of the more advanced features (memory/etc) but I guarantee those features to work properly. Slider controls operate smoothly with no distortion. Keys are all responsive-no sticky keys. Cosmetically, instrument looks good overall but does have some surface wear. There are some scattered spots of minor surface rust on top cabinet panel. The rust spots are no bigger than an 1/8″ in dia and the rust is very superficial. Rear panel of synth is fully intact. The large Yamaha logo on rear panel has some faint blue paint overspray on it. Power cord is intact and in good condition.” Click here to visit listing on eBay

“YAMAHA DX21 CLASSIC SYNTHESISER

PLAYS FINE MAY BENEFIT FROM A SERVICE AS MEMORY BATTERY UNCHECKED AND MODULATION WHEEL NOT SPRINGING BACK TO CENTER ALSO 2 SLIDER KNOB CAPS ARE MISSING ” Click here to visit listing on eBay

“This particular unit is in good condition for its age, all buttons and programs work perfectly. This unit has been freshly cleaned and serviced and is operating without any faults. This unit also runs on 240V AC so for those in Australia, it’s plug in and go!” Click here to visit listing on eBay

“For sale i’ve got a Yamaha DX21 FM synthesizer.. It will need the factory patches reloaded onto it as it has a garbled screen and will only make sound when the factory reset procedure loads up the Init sound patch. I have replaced the old battery with a new slotted removable battery holder for easy change. All notes respond on keyboard. Cosmetically it’s got some scratches and scuffs but not too bad. Comes with the owner’s manual.”
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“Yamaha DX-21 FM Digital Keyboard Synthesizer 61Key Black Good Condition. No original box or paperwork. We used this for several years and eventually upgraded to a newer model. This one works well but has minor imperfections. The internal battery may also need to be replaced.”
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“Product Specifications: Yamaha DX21 Digital Programmable Algorithm Synthesizer

Accessories: Not Included

Description: Unit has been tested to verify functionality. If not stated you will only receive what is seen in the photos.

Appearance:

Unit is in pre-owned/used condition with some cosmetic damage, including one missing key.”
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“Condition

Unit Powers ON.

All keys work some are harder to press than others.

Right plastic bracket has been broken off and currently held on by tape. PARTS

Pitch and Modulation wheels work but is bent , Modulation wheel spring is not functioning if it had one .

No other tests were conducted.

Item shows some signs of use, wear and scuffs.

Unit sold AS IS.”
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“Yamaha DX21 Digital Programmable Algorithm Synthesizer WORKS. Unit is in very good condition for it’s age some scratches here and there and is missing a screw in the back but otherwise it’s in good working condition.” Click here to visit listing on eBay

“For sale is a nice Yamaha DX21 FM synth. The unit is clean and tested to be in good working condition. The unit comes modified with a backlit LCD screen, but is otherwise all original. Please expect light wear due to age, but the unit is in good condition with no obvious signs damage.” Click here to visit listing on eBay

“Good condition, some wear and tear on the exterior including a missing handle for the data entry slider and some scratches on the keys, see photos. Item has been tested on headphone output only but all keys, buttons, and sliders work!” Click here to visit listing on eBay

“Yamaha DX21 Synth in lovely condition with custom case. It has been kept safe in its case for many years. There are no blemishes on the top, sides, front or rear and only minor stand marks underneath. I doubt that there are many classic synths of this age in as good a condition as this instrument.”
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“Working well considering it’s age, pitch bend wheel is a bit wonky but works fine. Has had new fader caps on volume/balance/data entry sliders. D# in the second octave can be a little sticky, probably easy to sort by opening up and cleaning the key bed, I’m not familiar enough with the DX21 to take it apart myself.” Click here to visit listing on eBay

“Yamaha DX21 FM Synthesizer TESTED AND WORKING

Everything works, it is very good condition

A bump underneath the keyboard is a sign of wear but this is only cosmetic everything internally works well

It has some patches I programmed in it pretty much all of the top presets are all my own patches

I would keep it but I want to go to a different type of synthesis and I don’t want to have more than one synthesizer at one time”
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“Operation has been checked” Click here to visit listing on eBay

“Yamaha DX21 in working condition with soft case. Crack on side panel.” Click here to visit listing on eBay

“Yamaha DX 21 keyboard.

Great shape permanent AC cable” Click here to visit listing on eBay

“Yamaha DX21 Synthesizer Vintage.

Screen may be damaged, not tested further. ”
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” Yamaha DX21 keyboard (Programmable FM synthesiser).

I’ve owned this keyboard for about 30 years but in reality haven’t really used it for the last 25! However, it’s been carefully stored and so is in great condition apart from a few minor scratches and 1 of the slider knobs is missing (as shown in photo – however slider still works fine). The only other known issue is that when it is first switched on, the lowest key occasionally needs to be pressed a couple of times to get it to respond before then working OK. All other keys are 100% reliable. I’ve also checked that I can change sound settings and then swiich off and later back on again without the settings being lost (i.e. an indicator that the internal battery is still OK?).

The keyboard also comes with the original music stand attachment and a basic floor stand (although the latter is not particularly stable – could use a few improvements!). In addition, there is a photocopied version of the owner’s manual.”
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“Yamaha DX21 Synthesizer NEW battery great condition!.”
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“Yamaha DX21 synthesizer. It powers on but I got no sound out of it through headphones. There are no cracks or anything in case. It may just need a good cleaning. ” Click here to visit listing on eBay

“Yamaha DX21 synthesizer. It powers on but I got no sound out of it through headphones. There are no cracks or anything in case. It may just need a good cleaning. ”
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“Working perfectly, just a slight scuff on the top as pictured and one slider knob missing, both of which as purely cosmetic. Otherwise, great condition for a 30+ year old synth.” Click here to visit listing on eBay

“UNIT IS IN USED CONDITION SOLD AS SPARES / REPAIRS DUE TO FAULTS DETECTED DURING TESTING. THE KEYBOARD POWERS ON WHEN PLUGGED IN. NO BACKLIGHT ON THE DISPLAY HOWEVER THE DISPLAY DOES TURN ON. NO WRITING APPEARS ON THE DISPLAY, JUST A SERIES OF FULL PIXEL SQUARES. I HAVE TAKEN A PHOTO OF THE DISPLAY WHEN POWERED ON. NO MENUS OR OTHER FUNCTIONS POSSIBLE. THE UNIT DOES NOT MAKE A SOUND EITHER. UNSURE OF UNDERLYING ISSUE. KEYBOARD ONLY POWERING ON AND NO FURTHER FUNCTIONALITY POSSIBLE. DURING PHYSICAL INSPECTION I ALSO NOTICED THE FIRST 3/4 KEYS ON THE LEFT SIDE ARE VERY STIFF AND A LITTLE BIT SKEWED. THE REST OF THE KEYS FEEL FINE AND BEHAVE AS YOU WOULD EXPECT. SPARES / REPAIRS. COSMETICALLY THE UNIT IS IN USED CONDITION WITH QUITE A LOT OF SIGNS OF USE / WEAR. CONSULT PHOTOS FOR EXACT ITEM YOU WILL RECEIVE. SPARES / REPAIRS”

“Up for buy it now or best offer is a Vintage YAMAHA DX21 61-Keyboard Synthesizer. Turns on but keys don’t make any sound. Great for parts or repair.” Click here to visit listing on eBay

“Yamaha DX21 FM synthesizer.
good condition. All keys work, a few near the high end could use leveling.
One slider cap missing. LCD pretty sharp as these go. Believe the stock sounds are loaded.
Sounds like old Fm synthesis :-)” Click here to visit listing on eBay

“Comes as seen
Powers on and Display reads well
all keys working
Voices and functions are working good
Pitch and modulation wheels working good
has some normal age and some scratches but mostly in nice shape
no broken or damaged keys
no case” Click here to visit listing on eBay

“Yamaha DX21 Synthesizer Keyboard. Screen has some bleeding but is functional. Sounds good. Tested and functional. Overall in good cosmetic condition as seen in photos.” Click here to visit listing on eBay

“Yamaha DX21 61-Key near mint condition in custom hard case fully working. Appears to have been well stored, auction purchase, history is unknown.” Click here to visit listing on eBay

“Yamaha DX21 61 Key FM Digital Synthesizer Keyboard.

Slider tabs for volume and balance missing

Pitch wheel binds

Bottom right of case cracked see pics” Click here to visit listing on eBay

” I am selling my old Yamaha DX21. This is an FM Synth, a member of the DX7 tribe released in 1985-ish. So, if you’re looking for that sort of 80’s sound, this would be a good way to get it.

Everything works well. It does need a cleaning. Hasnt been used in a long time. There are some scuffs and dust build up. Nothing that effects the playing or sound. There’s a couple of areas where there are small amounts of glitter nail polish. My friend sold this to me and his little girl used to play it. I’m sure it can be easily removed. I tried to show them in the pics.” Click here to visit listing on eBay

“YAMAHA DX-21 Vintage FM Synthesizer Made in JAPAN – 1984. SERVICED. Works and Sounds Great ” Click here to visit listing on eBay

“The Yamaha DX21 is a digital controlled bi-timbral programmable analog synthesizer with a four operator synth voice generator which was released in 1985. It uses sine wave-based frequency modulation synthesis.” Click here to visit listing on eBay

“Yamaha DX21 Synth good condition.” Click here to visit listing on eBay