Use the following procedure to adjust the contrast of the TD-20'S display:
- With the power turned on, press and hold the KIT button.
- Turn the VALUE dial to adjust the contrast.
- Release KIT when finished.
NOTE: If no text information appears on the screen after performing this operation, a malfunction may have occurred. However, it has been more than 13 years since the TD-20 was discontinued and we do not have the necessary parts in stock for repair. (As of October 2023)