via this auction
via the listing: "Minor blemishes associated with normal use of a vintage keyboard. Has the larger 120 patch memory. I've been through the service manual. I've read the notes on performance and adjustment and this keyboard seems to operate within the parameters defined in the service manual. It sounds really good.. The service manual talks about temperature a great deal and performance and warm up time can have a lot to do with how hot or cold it is in your room. The studio that this item has been in since i got it is in a basement room. It stays at a very consistent 70 degrees with perfect humidity for storage. When i turn this prophet on it takes 10 seconds or so to tune itself and then goes into patch memory just like it should. I usually give it 30-45 minutes to warm up fully, and this thing sounds amazing. It tunes exactly to "A" 440hrz per the pitch reference button on the prophet and my peterson 490st strobe tuner. It also plays up and down the keyboard in tune and seems to have no problem retuning itself when needed. The pots are very clean and have good action. This item has the midi as a revision 3.2 should have. The previous owner stated that he had the keyboard re-bushed and leveled slightly. It plays very well and has no dry bushings or sticky notes.
The led lights flicker a little bit when played. This is sometimes perceived as a problem, but it's not. It actually happens on all revision 3.2 and 3.3 models. l read in the service manual that this is common for revision 3.2 because of the integrated circuit chips that were used for some of the control surfaces. The chip that controls the led display and button assemblies operates at the same frequency as the one that controls the gates on the keyboard. This means when you play the keyboard the led displays flicker slightly, not a big deal. It's within normal operation per the service manual for that to happen..."
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