Roland F-90. 사용자 설명서

If you are encountering problems with the unit, please read 
the section below before assuming that there is a 
malfunction.

The piano cannot be 
switched on

Is the AC adaptor properly 
connected? (p. 10)

No sound is produced

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)

Only One Tone Plays in 
Dual Play

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).

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

Is the keyboard in Dual Play 
mode? (p. 14)

The pitch of the keyboard 
sounds incorrect

Is the Master Tuning setting 
correct? (p. 19)

Is the Key Transpose setting 
correct? (p. 19)

The pedals are not func-
tioning, or function inter-
mittently

Are the pedals connected 
properly? (p. 10)

Sound is distorted

Raising the volume too high 
may distort the sound. Adjust 
the volume level with the 
[Volume] knob. (p. 11)

In the upper range, the 
sound changes abruptly 
beyond a certain key

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.

Bass notes sound wrong/
buzzing or vibration oc-
curs

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. 

The problem may be for a 
different reason. Please 
contact your dealer.

No sound is produced

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)

Strange sounds (or two 
sounds) are produced 
when the F-90 is played

With the sequencer’s “Thru” 
function on, the same notes 
may be sounded twice. Set the 
F-90 to Local off (p. 23).

The volume level of the 
instrument connected to 
the Input jack is too low.

Could you be using a connec-
tion cable that contains a re-
sistor?
Use a connection cable that 
does not contain a resistor.