Thanks to Paul Troutman for this picture of the DX7II-FD, from a Yamaha advertisement.
Here is the same image in two halves,
(These files are about half a megabyte each)
For a picture of an original DX7, click here.
Articles from Keyboard Mag, scanned by
April 1986, E! card;
Feb 1987, DX7II: Page 1, Page 2.