The DX21 can be reset to voices copied from it's internal ROM,
instructions here
on page 9.
When I got my DX21 it had nothing but rectangles in the display, and
made no sounds (due to a dead battery), but copying voices from a ROM
back to RAM, and replacing the battery did the trick.
Later on it got intermittent, and I had to resolder the PC board.
Hope this helps.
George
--- In YamahaDX@..., "jenniefrench67" <alf2020@v...>
wrote:
To anyone who can help.
How can I restore the functionality to my DX 21. It has lost
everything...I mean EVERYTHING.
Thanks
