Roland VIMA RK-300 Owner's Manual page 204

Troubleshooting
Symptom
Multiple instruments sound
when you play the keyboard
Reverberation remains even
if You defeat the Reverb
effect
Sounds are produced even
though you're not playing
the keyboard
The sound of the higher
notes suddenly changes from
a certain key
High-pitched ringing is heard
Low notes sound wrong, or
are buzzy
204
Cause/Action
Could you have pressed the [DRUMS] button to play drum sounds?
If the [DRUMS] button's indicator is lit, the white keys C2–B3 will play
drum sounds. The black keys C 2–B 3 will play sound effects, and the
C4–C8 keys will play the sounds they were playing before you pressed
the [DRUMS] button.
If the [DRUMS] button is lit, A0–B1 will not produce sound.
Could you have selected a layered tone?
If you've selected a tone whose name is divided by a "+" symbol, two
sounds will sound simultaneously.
The RK-300's piano sound faithfully simulates the depth and resonance of
an acoustic piano, and this may give the impression of reverberation
even if you've defeated the Reverb effect.
Could one of the three D Beam buttons be lit green?
If a D Beam button is lit green, moving your hand above the D Beam
controller will play a sound effect.
On an acoustic piano, the approximately one and a half octaves of notes
at the top of the keyboard will continue sounding regardless of the
damper pedal. These notes also have a somewhat different tonal
character. RK-300 faithfully simulate this characteristic of acoustic pianos.
On the RK-300, the range that is unaffected by the damper pedal will
change according to the key control setting.
If you hear this in headphones:
Piano sounds that have a brilliant and crisp character contain substantial
high-frequency components that may sound as though a metallic
ringing has been added. This is because the character of an actual piano
is being faithfully reproduced, and is not a malfunction. This ringing is
more obtrusive if the reverb effect is applied heavily, so you may be able
to minimize it by decreasing the reverb.
If you don't hear this in headphones:
It is likely that there is some other reason (such as resonances within the
unit). Please contact your dealer or a nearby Roland service center.
If you don't hear this in headphones:
Performing at high volumes may cause the speakers or objects near the
VIMA to resonate. Fluorescent lights or glass doors may also resonate
sympathetically. In particular, this is more likely to occur for lower notes
and higher volumes. You can take the following measures to minimize
resonances.
• Locate the speakers 10–15 cm away from walls or other surfaces.
• Keep the volume down.
• Move away from the objects that are resonating.
If you hear this in headphones:
It is likely that there is some other reason. Please contact your dealer or a
nearby Roland service center.
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