“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