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101
Troubleshooting
If the AT-20S does not function in the way you except, first check the following chart. If this does not resolve the problem, consult
your dealer or a nearby Roland Service Station.
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).
AT-20S.e.book 101 ページ ２００３年１１月１０日 月曜日 午後２時３７分