“Yamaha CS60 Synthesizer With Legs Working Condition. Ive had this for many years but now it’s time for me to downsize. This board can create some really cool sounds! I just took it in to my tech to have it checked over. He said everything is working. He says at some point the power supply should be recapped but it’s working fine for now. All keys, switches and buttons are working as well as the pitch ribbon above the keys. The case is in good condition. I do have the Yamaha bag with the legs as well. The zipper on the bag will need to be restiched on one side. There is one broken knob on one of the legs. They still hold together without it but i will include it.” Click here to search for synths on eBay
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“This circa 1986-88 (?) DX11 powers up, but sounds like it needs work. None of the presets produce proper sound; a high-pitched digital squeal is heard in some cases, other cases no output at all. Garbled characters appear on the LED for certain button or preset selections. Repair or harvest for its very valuable parts.
” This Vintage Sound Module is in EXCELLENT WORKING CONDITION! ” 
“YAMAHA DX27 Synthesizers ,Adapter,. Condition is Used. ” 
“Yamaha SY-85 classic 90s Synthesizer.
“Up for sale used but fully operational Yamaha CS15D Dual channel analog synthesizer.
“Very nice cosmetic condition and lightly used over the years. Fully tested and works perfectly! Just minor marks. Includes original power supply.” 
“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.” 
“Yamaha SY77 in fair condition.
“Yamaha DX7S DX7 S algorithmic FM synthesizer
“No power cord included – when I put batteries in it says “cng ram battery” – It will not play any music and has not been tested at all beyond this. ” 
“Yamaha FM Sound Generator FB-01 Synth Module. Condition is Used. ” 
“YAMAHA SY22 DYNAMIC VECTOR SYNTHESIZER. TESTED, WORKING. IN GOOD CONDITION, 2 KEYS ARE CHIPPED AT THE END AND SHOWS SOME VERY LIGHT SCUFFING FROM HANDLING. INCLUDES POWER SUPPLY.” 
” This 1970s Yamaha CS-40M Analog Duophonic Synthesizer is in great shape and working condition. The CS-40m is a duophonic (2-voice) analog synthesizer! It was recently serviced in January 2019 to repair a broken trace in VCO 1 and reconstruct/remount broken PC boards. ” 
“Vintage Yamaha CS-5 monophonic synthesizer. Other than a small paint chip at the top edge (see pic) – excellent cosmetic condition. Tested – works great. Used very little, on the order of a few hours at most.” 
“Yamaha CS-5 Vintage Analog Synthesizer- Serviced. Condition is Seller refurbished.
“Hey, eBay! Up for grabs is a semi-working Yamaha SY77 61-key FM synthesizer, listed in “for parts or not working” condition. She powers on, the LCD works (though the backlight has gone out), and all 61 keys sound when depressed. Technically, she does work. The issue is that the microswitches beneath the panel buttons all need replaced, which is typical of Yamaha gear. The same thing happened to my Yamaha RS7000 and Yamaha Motif ES6, so my assumption is that Yamaha uses the cheapest and least reliable tact switches possible in the manufacture of their gear. I don’t have time to disassemble, desolder, and solder in new switches, so I’m passing this project on to you and selling her at a loss! Also, I have no way of testing the 3.5″ floppy diskette drive built-in to the unit, but I’m sure most people will replace this with a USB FDD emulator. ” 
“YAMAHA DX21 DIGITAL PROGRAMMABLE SYNTHESIZER KEYBOARD PIANO . Condition is Used. Been in my possession for 30 years. Has recently become temperamental with voices loading on power up and as of now they always eventually load. Also temperamental with individual tuning, not all voices load to A/440. All keys work and all factory voices load. New battery and battery holder. Sold as is.” 
“Powers on and produces sound. Not extensively tested. In good cosmetic condition.” 
“YAMAHA DX21 DX-21 FM Digital Synthesizer Vintage 80’s that powers on and has output, but two keys won’t spring back up and LCD has minor clouding as shown. Offered for parts/repair.” 
“Pre owned vintage Yamaha DX-100 synthesizer in good condition. Tested and works. Comes with power supply, but no other accessories are included. Please see photos for details.” 
“Yamaha SY-35 Synth Keyboard w/ Power Adapter SY35 w/Manual and Yamaha foot pedal.
“We own an e-waste recycling company and this sound generator was dropped off at one of our collection sites. It has been tested to power on but NO FURTHER TESTING HAS BEEN DONE. It is being SOLD AS-IS for parts or repair.” 
” Good working TX7. Comes from non-smoking studio.” 
“Vintage Yamaha synthesizer – model DX27.
“Yamaha FB-01 MIDI FM Sound Generator Synthesizer Module Synth Voice. Condition is Used. Shipped with USPS Priority Mail.” 
“Excellent Shape, with Very Clean Front Panel. This is one of the cleanest Front panels I have ever seen on a DX7!
“Yamaha DX100 Vintage Synthesizer Keyboard With Power Supply, Foot Switch, Manual. Condition is Used.
“OK, I bought this a few years ago, played with it a bit but a friend of mine wanted to buy it. I let him borrow it and he said there were some issues with it and it was beyond his tech/repair capabilities. I don’t remember exactly what the issues are – I’ll fire it up soon and see if I can nail down what’s going on. I’ll even try to make a functionality video.” 
“Here is a great and classic sounding vintage analog synthesizer. a rare Yamaha CS50. It’s in good shape, 100% fully functional. More affordable older CS60 and CS80 sound. Check out pictures to make sure you like it. It will be safely packed for shipping.” 
“In nice cosmetic shape. Functions mostly good. However, the 16′ footage on the strings and the poly synth is not working. The slider on the string section just adds more volume of 8′, and the footage control on the poly synth doesnt do anything. Sometimes when powering up the string section doesnt work, and it needs to be shut off again. Also smells kinda weird, haha. Pricing this with the intention that whoever buys it will need to get serviced.” 
“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,” 
“Yamaha DX100 Vintage FM Synthesizer.
“Yamaha DX27 Digital Programmable Synthesizer. Condition is Used.
“Vintage Yamaha DX27 Synthesizer