Here's how to adjust the Hihat Pedal Volume in the TD-15.
- Press MENU.
- Press the Function 1(F1) button for "INST."
- Press F2 (EDIT).
- Press F3 (KIT VOL).
- Use the cursor up or down buttons to highlight the value for "Pedal HH Volume."
- Turn the dial to adjust the level.
- Press EXIT when you're finished. The new setting is saved in the Kit automatically.