Yamaha DX21

” 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 Project Machine

“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”

Yamaha DX21

“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

Yamaha DX21

“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

” 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 DX21

“PHYSICAL CONDITION: Excellent – There are a few minor scuffs around the device, however, each knob and button is perfectly intact. Overall, everything is in excellent physical condition. WORKING CONDITION: Very Good – Works nicely. Each key is responsive and all the parameters are fully functional. However, the volume knob can be a bit scratchy sometimes. Otherwise, the working condition is very good. Please click on “Item Description” for more details and photos.” Click here to visit listing on eBay

Yamaha DX21

“YAMAHA DX21 VINTAGE SYNTHESISER 1980s – GREAT CONDITION + CARRY CASE.

Some slight speckled markings, which are visible up close, but overall in lovely condition and working perfectly. Happy to email a link to my own patches as well, if that would be useful. ”
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Yamaha DX21

“You’re bidding on this Yamaha DX21, Digital, Programmable Algorithm Synthesizer. It was dropped at some point on the left end resulting in the damage shown in pics 9-11. The 2nd from the left black key also sticks but other than that everything appears to be in working order with no dead or other sticking keys.” Click here to visit listing on eBay

Yamaha DX21

“You’re bidding on this Yamaha DX21, Digital, Programmable Algorithm Synthesizer. Pic 8 shows an odd plug on the end of the power cord but other than that it’s in nice overall condition looking to have been well cared for. Everything appears to be in working order with no dead or sticking keys. Ready to go to work for you. ” Click here to visit listing on eBay

Yamaha DX21

“Yamaha DX21 keyboard synthesizer working. I have a Motif and no longer need this . It has been sitting in the closet for a few years so when I fired it up I had to reload the patches from the onboard memory. Worked like a charm. Probably needs the onboard battery replaced. Lots of videos on you tube showing how to do it. LCD screen starting to “bleed” around the edges, doesn’t effect it’s usability at all. You can find back-light replacements on Ebay for under $30. Classic Yamaha sounds. I will include a printed users manual with it.” Click here to visit listing on eBay

Yamaha DX21

“UNIT IS IN USED CONDITION. TESTED & WORKING. NICE HIGH QUALITY DIGITAL SYNTHESIZER. THE BALANCE SLIDER IS MISSING BUT FUNCTION WORKS FINE WITHOUT. DISPLAY WORKS FINE NICE AND BRIGHT. COSMETICALLY A FEW RUBS / MARKS / SIGNS OF USE & WEAR. NOTHING TOO MAJOR. CONSULT PHOTOS FOR EXACT ITEM YOU WILL RECEIVE. TESTED & WORKING. USED CONDITION” Click here to visit listing on eBay

Yamaha DX21

“Yamaha DX21 Synthesizer Keyboard with New White on Blue Backlit Display with printout of manual.

Updated with new display.

Sounds great and all buttons, wheels, and functions work good.

I am not familiar with this synth so I tested everything I could figure out.

A little dusty from sitting on a keyboard stand in aq smoke-free studio.”
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Yamaha DX21

“Classic keyboard in working order with a couple of faults;

– White key (D) marked with black tape on the right makes no sound.
– White key (D) marked with black tape on the left works but has dropped.
– The LCD display is not perfect but is still completely legible.”
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Yamaha DX21

“You’re bidding on this vintage Yamaha, DX-21, Digital Programmable Algorithm Synthesizer. It’s in nice overall cosmetic condition looking to have been well cared for. I tested it with a set of headphones and it appears to be fully functional with no dead keys. Ready to go to work for you. ”
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Yamaha DX21

“Yamaha DX21 MIDI Digital Programmable Polyphonic FM Synthesizer. Condition is “Used”.

LCD screen has developed a black border, but is still readable enough (can be easily replaced with OLED, e.g. from synth-parts.com).

Low buy price to account for flawed display.

Great Vintage synth, at an accessible price.” Click here to visit listing on eBay