Roland AT900 Music Atelier Owner's Manual page 275

Problem
Recording is not possible
The recorded performance has
disappeared
The bass note of the Automatic
Accompaniment does not sound
MIDI messages received at MIDI In
are not sounded
Sound is distorted / cracked
Some keys (of certain keyboard
parts) sound strange
The Rhythm does not change
when you press the Registration
buttons
The volume changes during
playback of performance data
Bass is heard even though you are
not playing the Bass Pedalboard
When playing the same sound in
the Upper keyboard and Lower
keyboard, the volume is different
Lower keyboard cannot be heard
Check
If you wish to erase a previously-
recorded track and then re-record,
press the track button for the desired
track to make that button blink before
you begin recording.
If you wish to erase a previously-
recorded track and then re-record,
touch the track button for the track you
want to record in the Rec/Play screen,
stopping the button from flashing.
Any performance that has been
recorded is deleted when the power to
the unit is turned off.
When a voice is selected for the Pedal
Bass part, the bass of the Automatic
Accompaniment will not sound.
The Computer switch is not set to
"MIDI" position.
The Computer switch was set to "MIDI"
after the power was turned on.
The Part Balance volume of each part
is too high.
The Reverb volume has been raised
when the volume of each Part Balance
button is already raised.
The [Master Volume] slider has been
used to raise the overall volume
excessively.
You are playing notes outside the
recommended range of the voice.
The settings at which Registrations are
recalled (Registration Arranger
Update) has been set to "DELAYED."
When recording is performed
repeatedly while changing the Part
Balance volume, the previously-
recorded Part Balance data remains in
the Control track.
The Pedal [To Lower] button or the
[Bass Split] button is ON.
When the Pedal [To Lower] button is
ON, the Bass will be sounded by the
Lower keyboard.
On one of the keyboards, "Initial
Touch" is turned ON.
The Lower keyboard will not produce
sound while an Intro or Ending is being
played.
Troubleshooting
Solution
Press the track button for the desired
track to make that button indicator
blink before you begin recording.
On Rec/Play screen, touch the track
button for the desired track to make
that button indicator blink before you
begin recording.
A performance cannot be restored
once it's been deleted, so be sure to
save it on a floppy disk before you turn
off the power.
This is not a malfunction.
Set the Computer switch to "MIDI."
Turn off the power, and then turn the
power on once again.
Press the Part Balance button to lower
the volume.
Either lower the Reverb volume, or
adjust the Part Balance of each part.
Use the [Master Volume] slider to lower
the overall volume.
This is not a malfunction.
Set the timing at which the arranger
settings are called up (Registration
Arranger Update) to "INSTANT."
If you wish to get rid of the volume
changes, use the Erase function to
delete the Part Balance data.
In the Pedal part, press the Pedal [To
Lower] button or [Bass Split] button to
turn the button off (dark).
Set the initial touch settings of the
Upper keyboard and the Lower
keyboard to both On, or both Off.
This is not a malfunction.
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