Under normal circumstances, pressing the sustain pedal produces a sound delay effect, while releasing the pedal stops the delay effect.
If the actual situation is the opposite of the above description, it may be due to incorrect polarity settings of the pedal, and the pedals polarity needs to be switched.
To perform polarity switching, you can try the following steps:
1. Turn off the keyboard.
2. Without touching the pedal, switch the polarity.
3. Turn on the keyboard after it is ready.
4. Test the pedal to see if it functions correctly.
If it still doesnt work properly, you can try the following:
a. Please verify that the pedal is properly connected to the "SUS" or "sustain pedal" interface on the keyboard.
b. Disconnect the pedal, turn off the keyboard, recharge it, and then reconnect the pedal after it is fully charged.
c. If the pedal still doesnt work properly, it may be related to the built-in delay settings of the keyboard. It is recommended to check the keyboards instructions regarding delay settings for further confirmation.