In 1987, Yamaha celebrated its 100th birthday. At that time, the DX7 was still very much a leading product for Yamaha, so to commemorate 100 years, they produced a limited edition 'Centennial' version of the popular DX7IIFD. It was hugely expensive new, but now (if you can find one!) you'll see change from $1000.
Not many were made - only 300 I believe.
As far as the tech and spec sides are concerned, the Centennial is identical to the DX7 IIFD, albeit with a 76 note keyboard with glow-in-the-dark keys !
It looks like this...
IF YOU WANT TO DOWNLOAD A MANUAL FOR A DX7 II Centennial, CLICK HERE
The manual can be downloaded free of charge from Yamaha, so there's no excuse not to get programming!! You will also find a complete DX7II spec here too. This is the closest match to the DX7 Centennial we can find.
EBAY AUCTIONS, CLICK HERE
If your DX7II Centennial is broken, don't throw it away - even broken DX7's fetch some bucks on ebay auctions. There are still many thousands of DX users who want to keep theirs going, using keys, buttons, circuits etc, so sell your duff one for spares!!
If your DX7 seems to work ok, but doesn't produce any sound (and you've checked obvious things like volume!), then perhaps the LOCAL feature was turned OFF, which means the DX7 transmits MIDI but won't play it's own sounds.
To check / rectify this, after turning the DX7II on, press the EDIT / COMPARE button. Then press Button 31 (MIDI1) a few times until you see the word 'Local' on the right hand side of the LCD. For the DX7 to play it's own sounds, Local must be ON. Use the Cursor buttons and the + - data entry buttons to change Local to ON.
