Roland owner manual Troubleshooting, When the F-90 is connected to an external device

Troubleshooting

If you are encountering problems with the unit, please read

the section below before assuming that there is a

malfunction.

Case	Cause/What to do
The piano cannot be	Is the AC adaptor properly
switched on	connected? (p. 10)
	Is the [Volume] knob set to
	the minimum position? (p. 11)
	Are the headphones connect-
No sound is produced	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-
Only One Tone Plays in	ticular selection of tones you
	make, certain tones may be
Dual Play
	difficult to hear when layered.
	Try adjusting volume balance
	(p. 20).
Demo songs do not play
Metronome does not
sound	Is Panel Lock on? (p. 18)
Buttons do not function
Keyboard sound does not
change
Two sounds are pro-	Is the keyboard in Dual Play
duced when the keyboard
	mode? (p. 14)
is played
	Is the Master Tuning setting
The pitch of the keyboard	correct? (p. 19)
sounds incorrect
	Is the Key Transpose setting
	correct? (p. 19)
The pedals are not func-	Are the pedals connected
tioning, or function inter-
	properly? (p. 10)
mittently
	Raising the volume too high
Sound is distorted	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
In the upper range, the	damper pedal. There is a dif-
	ference in the timbre as well.
sound changes abruptly
	Roland pianos faithfully sim-
beyond a certain key
	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	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
Bass notes sound wrong/	high volume. To minimize
buzzing or vibration oc-	such unwanted resonance,
curs	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.

When the F-90 is connected to an external device

	Is the power to all equipment
	turned on?
	Are the connections between
	F-90 and the MIDI sequencer
No sound is produced	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	With the sequencer’s “Thru”
	function on, the same notes
sounds) are produced
	may be sounded twice. Set the
when the F-90 is played
	F-90 to Local off (p. 23).
	Could you be using a connec-
The volume level of the	tion cable that contains a re-
instrument connected to	sistor?
the Input jack is too low.	Use a connection cable that
	does not contain a resistor.

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