The contrast and brightness of the display can be adjusted in the TD-25. Here's how to adjust the settings:
1. Press the function 3 button.
2. Press function 3 again (SETUP).
3. Press ENTER (KICK button) for "OPTIONS."
4. Turn the INSTRUMENT knob to adjust the LCD Contrast.
5. Press function 3 once to select LCD Brightness.
6. Turn the INSTRUMENT knob to adjust the Brightness.
7. When you're finished, press the function 1 button(EXIT) 3 times to return the main menu. The new settings are saved automatically.