Roland F-120 用户手册

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Troubleshooting

This unit uses a hammer action keyboard in order to simulate an acoustic piano’s playing touch as realistically as possible. For this 

reason, you’ll hear the hammers thump when you play the keyboard, just as you would when playing an acoustic piano. Since this 

unit allows you to adjust its volume, you might notice the sound of the hammers in certain situations, but this does not indicate 

a malfunction. If vibration transmitted to the floor or walls is a concern, you may be able to minimize the vibration by moving the 

piano away from the wall, or by laying down a commercially available anti-vibration mat designed for use with pianos.

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When 240 minutes (4 hours) have elapsed since you last played or operated this unit, the power will turn off automatically. (This is 

the factory setting.)  

If you don’t need the power to turn off automatically, turn the “Auto Off” setting off.

Is the AC adaptor connected correctly?

Is the pedal connected correctly? 
Plug the cord firmly into the pedal connector.

If you disconnect the pedal cord from this unit while the power is on, the pedal effect may remain “stuck” in the On condition. You 

must switch off the unit’s power before connecting or disconnecting the pedal cord.

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Could Twin Piano be turned on?
If Twin Piano is on, the right pedal will apply only to the right-hand section of the keyboard, and the left pedal will apply only to 

the left-hand section of the keyboard.

Could you be using a connection cable that contains a resistor?
Use a connection cable that does not contain a resistor.

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Could the unit’s volume or the volume of the connected equipment be turned down?

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Could headphones be connected?  

Could there be a plug inserted in a headphone jack?
The speakers will not produce sound if headphones or plug are connected to the headphone jacks.

Has Local Control been set to “Off”?
When Local Control is set to Off, no sound is produced by playing back a song. Set Local Control to On.

Could the Visual Control mode be set to MIDI Visual Control or V-LINK?
If the Visual Control mode is set to MIDI Visual Control or V-LINK, the lowest 12 keys of the keyboard (A0–G#1) are used to control 

images; they will not produce sound.

Are all devices powered on?

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Are the MIDI cables connected correctly?

Do the MIDI channels of this unit and the connected device match?

The maximum simultaneous polyphony is 128 voices. If you’re using the Dual tone (p. 18), if you’re playing along with a song, or if 

you’re making extensive use of the damper pedal, the performance data may exceed the available polyphony, possibly causing 

some of the notes you play to drop out.

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Could you have made Transpose settings?

Is the Master Tune setting appropriate?

The notes of a piano are tuned using a unique method (stretched tuning), which makes upper-range notes slightly higher in 

pitch, and lower-range notes slightly lower in pitch. For this reason, you might perceive the pitch as being incorrect, but this is the 

way an acoustic piano should sound.

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Could you have selected a dual tone?

When this unit is connected to an external sequencer, set the Local Control to off. Alternatively, the sequencer could be set so its 

Soft Thru feature is Off.

The unit’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.

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On an acoustic piano, the approximately one and a half octaves of notes at the upper end of the keyboard will continue sounding 

regardless of the damper pedal. These notes also have a somewhat different tonal character. This unit faithfully simulate this 

characteristic of acoustic pianos. On this unit, the range that is unaffected by the damper pedal will change according to the 

transpose setting.

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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 characteristics of an actual piano are 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.

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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 the nearest Roland 

service center.

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If you set the volume to the maximum setting, the sound may be distorted depending on how you perform. If this occurs, turn 

down the volume.

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If you don’t hear this in headphones: 
Performing at high volumes may cause the speakers or objects near the unit 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 this unit 10–15 cm (4–6 inch) away from walls or other surfaces.
•  Keep the volume down.
•  Move away from the objects that are resonating.

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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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