“Up for sale is a Yamaha DX7 Synthesizer. Overall, the instrument is in very nice cosmetic shape, with a few scratches along the sides, top and bottom as shown in the photos. The worst looking part is the back right corner, shown in the 12th picture. A few keys also have small scratches; they did not photograph well but I took pictures of the affected keys.
Functionally, the unit is as it should be except that the internal battery will need to be changed soon (I am not great with a soldering iron, so I think that is best left to the next owner!) and the mod wheel does not seem responsive. I suspect that either I messed up something in the settings or that the battery could be affecting it, as the mod wheel has worked every other time I have used this synth. All patches sound correct (except for the “BC” patches, which I believe require an external breath controller), and the membrane buttons are in nice shape. The sliders are also functional, although the volume slider goes from really quiet to really loud without a whole lot in-between.” Click here to search for synths on eBay
“This auction is for the item shown.
“This item is in the cosmetic condition shown – one corner is damaged. It is in good working order, but the volume slide is scratchy when adjusting the volume. The sale includes ONLY what is shown.” 
“For the old school Synth heads here’s Yamaha dx7 keyboard. All key and functions work as they should. Item will be shipped securely.” 
“YAMAHA DX7 IIFD Vintage FM Synthesizer. Made in JAPAN- 1987. Condition is Used. 2 broken keys.
“This DX7 come with 5 cartridges and original leather case!!
“The only flaw I can see with this unit is that there are some scratches under the volume slider, and it needs an internal battery. Everything else is super clean.” 
“Excellent Shape, with Very Clean Front Panel. This is one of the cleanest Front panels I have ever seen on a DX7!
“Up for auction is this YAMAHA Synthesizer, used, tested and Ill mention that some low keys (left side) get stuck, one is down all the time the other ones some times does but not always, i called a local tech, he said it may just need some cleaning and adjust the key that is loose,” 
” Used and in really great condition. A few minor scratches but otherwise clean. Works and has clear sound. Sustain pedal and soft case included.” 
“This is an auction for a Yamaha DX7!
“This is an auction for a Yamaha DX7!
“Yamaha DX7s Digital Synthesizer Keyboard with cart. Needs memory battery, but everything functions without it.”
“This keyboard is in overall good condition and shows a fair amount of scratches and signs of wear (paint scratches, a small cigarette burn, dings in plastic). However, the keyboard is in proper working order and functions as it should. Has been professionally gone through and tested to ensure playability.” 
“Yamaha DX7 FD2….The unit powers on and works fine…There are no issues…….This comes with a soft case, ready to be played at home or at the gig….” 
“YAMAHA DX7 Digital Programable Algorithm SYNTHESIZER. Condition is Used.”
“Yamaha DX7 Digital Programmable Algorithm Synthesizer . Great shape”
“YAMAHA DX7 FM SYNTHESIZER. TESTED, WORKING. IN GOOD CONDITION, SHOWS SOME SCUFFS AND SCRATCHES AND THE DATA ENTRY FADER CAP IS MISSING. AN EXCELLENT-SOUNDING FM SYNTHESIZER WITH A RANGE OF CLASSIC SOUNDS. ” 
“Yamaha DX7 FD2….The unit powers on and works fine…There are no issues…….This comes with a soft case, ready to be played at home or at the gig….”
“Yamaha DX7 Digital Programmable Algorithm Synthesizer . Condition is Used. Has 11 Tuba sounds for those Duranguense Music Lovers. It has been kept in a storage area because I no ponger use it. Ever key and button works as should.”
“YAMAHA DX7 II FD Synthesizer. Church kept! Pristine and sounding great. Comes with expansion cartridge! This piece of FM synth history could be yours!”
“Turns on but only has the prompts shown in images, display may need replacement or use as-is some rust on cover, keys all look good and white (no yellowing) back left corner missing part/broken off…Can’t test anything really, US power cord”
“Yamaha DX7 Digital Programmable Algorithm Synthesizer .
“Digital Interface Buttons: Working condition but we do not have a manual
“Yamaha DX7 II (2) FD Digital Programable Algorithm Synthesizer Keyboard.
“Yamaha DX7 FD2….The unit powers on and works fine…There are no issues…The power cord to the unit was professionally shortened to make it fit better….You can always attach an extension cord to it….This comes with a soft case, ready to be played at home or at the gig….”
“This is a Yamaha DX7 synthesizer keyboard. I know very little about keyboards but here is what I see about this one. It seems to work fine and it sounds good. There is a little “door” on the top right side but there is nothing inside the door. I’m guessing there is some kind of plug in item that can go in there to maybe add more features but I don’t know that for sure. The surface has light general wear as would be expected from age and use, but nothing large or serious. I don’t have a manual to operate it so I can’t guarantee that absolutely every function is working. All the buttons work and each button changes something.
“good condition—tested all works great—missing 1 knob —all keys and buttons work great—shows wear —see all pictures and ask any questions—may show normal wear no case no pedal” 
“Vintage Yamaha DX7 Synthesizer.
“Here’s your chance to allow me to thin out my vintage keyboard collection, and my loft insulation, and for you to benefit from owning a classic bit of 80’s kit at the same time!
” This is a used synth that I acquired and am selling, since it is from the 80’s it has normal cosmetic flaws such as some scratches, a dent in the back, and a cracked piece on the side, all clearly shown in the photos.
“Bought for a rebuild and just don’t have the time to get to it. Unit powers on as it should, but it has like 6 keys that are either broken or dead and make no sound. Also missing a switch cover by the volume switch. Early model made in 1985, it has plenty of “character” aka dings, stains, small chips/cracks, svc and other various signs of use. I already have $50 invested just in bubble wrap and a box to ship this heavy beast and it’ll cost another 35 to $100 for me too actually ship it so with that said please understand that this is a project item that needs work so it is being sold as is with no refunds or return”
“Up for sale is a very used and vintage Yamaha DX7 keyboard/synthesizer from 1984. When plugged in different messages appear (photographed). Selling it FOR PARTS because I know nothing about the repair needed. Also has a small voice cartridge attached. All original. It’s huge so PICK UP ONLY. TONS of wear but check out the vintage Apple Computer sticker attached! So cool. Very early model. Hope it finds a good home. ”
“Yamaha DX7 vintage digital synth with original Sounds.it is in great shape for it’s age and is in very good condition great sounds!”
“YAMAHA DX7 DIGITAL PROGRAMMABLE ALGORITHUM VINTAGE SYNTHESIZER. Condition is Used.