Troubleshooting - Roland F-90. Owner's Manual

Troubleshooting

If you are encountering problems with the unit, please read
the section below before assuming that there is a
malfunction.
Case
The piano cannot be
switched on
No sound is produced
Only One Tone Plays in
Dual Play
Demo songs do not play
Metronome does not
sound
Buttons do not function
Keyboard sound does not
change
Two sounds are pro-
duced when the keyboard
is played
The pitch of the keyboard
sounds incorrect
The pedals are not func-
tioning, or function inter-
mittently
Sound is distorted
In the upper range, the
sound changes abruptly
beyond a certain key
Cause/What to do
Is the AC adaptor properly
connected? (p. 10)
Is the [Volume] knob set to
the minimum position? (p. 11)
Are the headphones connect-
ed? (p. 11)
Is Local On/Off set to "Off"?
(p. 23)
Is the speaker cable properly
connected? (p. 6)
Depending on the setting for
volume balance, and the par-
ticular selection of tones you
make, certain tones may be
difficult to hear when layered.
Try adjusting volume balance
(p. 20).
Is Panel Lock on? (p. 18)
Is the keyboard in Dual Play
mode? (p. 14)
Is the Master Tuning setting
correct? (p. 19)
Is the Key Transpose setting
correct? (p. 19)
Are the pedals connected
properly? (p. 10)
Raising the volume too high
may distort the sound. Adjust
the volume level with the
[Volume] knob. (p. 11)
On an acoustic piano, notes in
the upper one and a half oc-
taves of the keyboard contin-
ue to sound until they decay
naturally, regardless of the
damper pedal. There is a dif-
ference in the timbre as well.
Roland pianos faithfully sim-
ulate such characteristics of
the acoustic piano. On the F-
90, the range that is unaffect-
ed by the damper pedal will
change depending on the Key
Transpose setting.
Case
Bass notes sound wrong/
buzzing or vibration oc-
curs
When the F-90 is connected to an external
device
No sound is produced
Strange sounds (or two
sounds) are produced
when the F-90 is played
The volume level of the
instrument connected to
the Input jack is too low.
Cause/What to do
If you can't hear the prob-
lem in the headphones:
When playing at high vol-
umes, resonance may oc-
cur in the piano itself or in
objects near the piano. At
times, other objects in the
room, such as fluorescent
lights or glass doors, could
start vibrating. Such phe-
nomenon becomes more
prevalent when sounding
the lower frequencies at
high volume. To minimize
such unwanted resonance,
please observe the follow-
ing:
- Locate the instrument so
it is 10-15 cm away from
walls.
- Reduce the volume.
- Increase the distance
from the object that is
resonating.
If you can hear the problem
in the headphones:
The problem may be for a
different reason. Please
contact your dealer.
Is the power to all equipment
turned on?
Are the connections between
F-90 and the MIDI sequencer
or the other external devices
correct? (p. 21, p. 22)
Is the MIDI channel setting
correct? (p. 24)
Is the Omni On/Off setting
correct? (p. 23)
With the sequencer's "Thru"
function on, the same notes
may be sounded twice. Set the
F-90 to Local off (p. 23).
Could you be using a connec-
tion cable that contains a re-
sistor?
Use a connection cable that
does not contain a resistor.
25