Yamaha DX oled display. 
Gold/Amber/Red or Blue characters on black.
These displays are plug N play in the following,  

TX7
DX7
DX7S
DX9
DX21

Oled will ship ready to install.
NO soldering is required, except for the DX11. Remove the old display, attach the oled the same way. Simple. 
Each DX requires a different configuration, specify which one you have and which colour oled you require, i will build and ship the appropriate display.
If you own a DX11 contact me to discuss before buying. All displays are oleds with a black background !

https://drive.google.com/file/d/0B7EcSsF92KI3NTlUVXN6VGZIQlU/view?usp=drivesdk

https://drive.google.com/file/d/0B5pZV71fL3HpX2pzZWFWZUNqMzQ/view?usp=drivesdk


Thanx for looking !