Troubleshooting
If the
When you press the [Power On] switch, the power doesn’t come on.
❍Power cord is not connected correctly (p. 16).
No sound is heard.
❍The [Master Volume] slider is set too low (p. 16).
❍Headphones are connected (p. 17).
When you connect the headphones, the sound is heard only through the headphones.
❍The volume of each Part Balance button is set too low (p. 26).
❍The volume is set too low on the Expression Pedal (p. 47).
❍You do not have a voice selected (p. 21).
Voices that have their button indicator lit can be played.
❍You have selected Manual Drums for the Lower keyboard, and are playing a key to which no drum sound or Sound Effect has been assigned (p. 28, p. 106).
No sound is heard (when a MIDI instrument is connected).
❍The power of the connected external devices is not turned on (p. 98).
❍The Computer switch on the rear of the unit is not set to “MIDI” (p. 100).
Damper Pedal does not operate
❍The damper pedal affects only the Lower keyboard. The damper pedal does not affect the Bass Pedalboard.
You can change the settings so that the damper pedal affects the Upper keyboard (p. 92).
❍The damper pedal does not affect the Solo voice.
Expression Pedal does not operate
❍The function of the Expression Pedal during recording (p. 81) or the function during playback (p. 81) has been set to “COMPOSER.”
Can’t use the function assigned to the foot switch
❍If the Utility menu item “Registration Shift” (change Registrations) is ON (p. 91), the foot switch will be dedicated to switching the Registration.
When the Human Voice “Jazz Scat” is selected, playing dynamics do not change the sound
❍The Utility menu item “Initial Touch” is turned OFF (p. 90).
Rotary effect is not be applied.
❍Some sounds do not allow the rotary effect to be applied (p. 105).
When you release your fingers from keys in the Lower keyboard while Automatic Accompaniment and Rhythm are playing, the Rhythm performance only remains playing.
❍Chord Hold is at OFF (p. 94).
The Automatic Accompaniment will play while you press a chord. If Chord Hold is turned ON, the Automatic Accompaniment will continue playing with the Rhythm even when you take your hand off of the Lower keyboard.
Even though you press only one key, a multiple number of notes sound.
❍Harmony Intelligence is at ON (p. 40).
❍Chord Intelligence is turned ON (p. 93).
Automatic Accompaniment sounds odd
❍The keys for a chord were not pressed simultaneously.
❍When Chord Intelligence is OFF (p. 93), the chord is not being pressed correctly.
❍When performance data from a device other than the AT- 20S is being played together with the Automatic Accom- paniment, the Automatic Accompaniment may
not be sounded correctly.
Rhythm sounds odd
❍When performance data from a device other than the AT- 20S is being played together with the Automatic Accom- paniment, the Rhythm performance may
not be sounded correctly.
Pitch is off.
❍Transpose is in effect (p. 46).
❍The tuning is incorrect (p. 95).
❍While set for an octave shift (p. 27), you are playing keys beyond the recommended range. This does not indicate a malfunction.
Performance data cannot be played back
❍While the Function menu appears in the display (with the exception of Channel Mute), playback is not allowed. If you wish to playback performance data, press the [Function] button once again to exit the Function menu (p. 79).
