Roland Atelier AT-90SL Owner's Manual page 217

Troubleshooting
Problem
Lower keyboard cannot be
heard.
The sound is not played
correctly.
Can't play the demo songs.
Nothing appears on screen.
Lyrics are not indicated
properly in the display.
The Touch Screen doesn't
respond correctly.
Certain instrument are not
heard while playing a song.
Can't use Chord Intelligence
function.
Notation is not indicated
properly in the display.
Vertical lines can be seen in
the screen.
216
Check
The Lower keyboard will not
produce sound while an Intro or
Ending is being played.
If you layer the same type of sound
(for example, Strings 1 and Strings
5), or play an octave-shifted organ
sound, the timing at which you play
a note or the phase relationship
between the two sounds may affect
the way in which the sounds are
heard, but this is not a malfunction.
A floppy disk is inserted in the disk
drive.
The AT-90SL uses a liquid-crystal
screen, so text may not be displayed
when the ambient temperature is
below freezing.
With some music files, the lyrics
cannot be displayed correctly.
In the Notation screen, some lyrics or
notes could extend beyond the edges
of the screen, and not be displayed.
A button was pressed while the
lyrics were being shown in the
display.
During the display of lyrics, you
could be taken to a different screen if
you press a button.
The positioning of the Touch Screen
may become displaced if some time
has passed since it was last used
The track is muted.
Chord Intelligence is at OFF.
In the Notation screen, some lyrics or
notes could extend beyond the edges
of the screen, and not be displayed.
The Notation display feature is
particularly unsuitable for the
display of difficult, complex musical
works that demand accurate
notation.
If you select a part that does not
contain performance data, notes will
not be displayed in the notation.
This is attributable to the design
fundamentals of a liquid crystal
display, and does not indicate a
malfunction.
Solution
This is not a malfunction.
You are layering sounds of the same
type (e.g., Strings 1 and Strings 5).
Alternatively, you are playing an
organ sound with Octave Shift.
This is not a malfunction.
In order to play the demo song, you
must remove the floppy disk from
the disk drive.
Adjust the brightness of the screen.
This is not a malfunction.
This is not a malfunction.
If you want to have the lyrics be
displayed again, touch <Play> on
the Rec/Play screen.
Reposition the Touch screen.
Turn off track muting.
Turn "Chord Intelligence" on.
This is not a malfunction.
This is not a malfunction.
Change the part that is displayed.
Adjusting the display's contrast can
make such lines less noticeable, so
you may want to try adjusting it.
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