190 troubleshooting – Roland AT90S User Manual
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190
Troubleshooting
Score is not indicated proper-
ly in the display.
In the Score screen, some lyrics or
notes could extend beyond the edges
of the screen, and not be displayed.
This is not a malfunction.
- - -
The score display feature is particu-
larly unsuitable for the display of
difficult, complex musical works
that demand accurate notation.
This is not a malfunction.
If you select a part that does not con-
tain performance data, notes will not
be displayed in the score.
Change the part that is displayed.
Vertical lines can be seen in
the screen.
This is attributable to the design fun-
damentals of a liquid crystal display,
and does not indicate a malfunction.
Adjusting the display’s contrast can
make such lines less noticeable, so
you may want to try adjusting it.
The Bass Range Sounds Odd,
or There Is a Vibrating Reso-
nance.
Playing at loud volumes may cause
instruments near the AT-90S/80S/
60S to resonate. Resonance can also
occur with fluorescent light tubes,
glass doors, and other objects. In par-
ticular, this problem occurs more
easily when the bass component is
increased, and when the sound is
played at higher volumes.
Use the following measures to sup-
press such resonance.
Place speakers so they are 10-15 cm
from walls and other surfaces.
Reduce the volume.
Move the speakers away from any
resonating objects.
- - -
When listening through head-
phones:
Here, a different cause (such as reso-
nance produced by the AT-90S/80S/
60S) would be suspect.
Consult your Roland dealer or near-
est Roland Service Center.
- - -
The volume level of the instru-
ment connected to AT-90S/
80S/60S is too low.
Could you be using a connection ca-
ble that contains a resistor?
Use a connection cable that does not
contain a resistor.
Problem
Check
Solution
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