Roland JUPITER-80 用户手册

Troubleshooting

Are the included AC adaptor and power cord correctly 

connected to an outlet and to the JUPITER-80?

Check that the power cord is connected correctly.
Do not use any AC adaptor or power cord other than the 

supplied items.
Doing so will cause malfunctions.

Have the connected amp or speakers been powered up?

Turn on the power of the connected amp or speakers.

Could the volume of a connected device have been lowered?

Adjust the volume of the connected equipment.

Could the [VOLUME] knob be set to the minimum level?

 Adjust the [VOLUME] knob.

Could the MASTER EQ’s Level setting be too low?

Check the MASTER EQ’s Level setting.

Are your amp, speakers, headphones, etc., connected correctly?

Correctly connect your amp, speakers, and headphones.

Can you connect headphones and hear sound through them?

If you hear sound through your headphones, it may be that there 

is a broken connection cable, or that your amp or mixer have 

malfunctioned. Check your connection cables and equipment 

once again.

Could you be using a connection cable that contains a resistor?

Use a connection cable that does not contain a resistor.

—

If pressing the keyboard does not produce sound, could the 

Local switch be turned off?

Turn the Local Switch setting on.

Could the level setting be too low?

Check the Registration level, Part level, and the level of the Live 

Set layer.

p. 37, p. 58

Are the effect settings correct?

Check the effect on/off settings. Also check settings such as the 

effect levels.

Could the volume have been lowered by a pedal operation, 

a D Beam controller operation, or a MIDI message (volume or 

expression) received from an external MIDI device?

Step on the pedal, move your hand above the D Beam controller, 

and check settings of the other controllers.

p. 47, p. 48

Could the PART [PERC]/[LOWER]/[UPPER]/[SOLO] buttons or 

layer buttons be turned off?

Turn on the [PERC]/[LOWER]/[UPPER]/[SOLO] buttons.

p. 37, p. 58

Could a key range be set?

If you don’t hear sound from a specific range of keys, check the 

key range settings.

Could you be applying an effect that intentionally distorts the 

sound?

If the sound of a specific Part or Live Set layer is distorted, lower 

the volume for that Part or Live Set layer.

p. 37, p. 58

Could the [VOLUME] knob be set too high?

If the overall sound is distorted, lower the [VOLUME] knob.

Could the Output Gain be raised excessively?

Check the system setting “SOUND”.

Could the JUPITER-80’s tuning be incorrect?

Check the system setting “Master Tune”.

Could the pitch have been changed by a pedal operation or by 

a pitch bend message received from an external MIDI device?

Check the pedal and the pitch bender.

p. 47, p. 48

Could the Coarse Tune or Fine Tune parameters be set?

Check the Coarse Tune and Fine Tune settings.

—

Notes will be interrupted if more than 256 notes are sounded 

simultaneously.

Reduce the number of layers in the Live Set you’re using. 

Increase the voice reserve setting for layers in which notes must 

not drop out.

Could the polarity of the hold pedal be reversed?

Check the system setting “Hold Pedal Polarity”.

Could effects be applied?

Since the JUPITER-80’s internal effects are stereo, applying 

an insert effect will allow effect sound to be heard from the 

opposite side even if the source sound is panned all the way to 

one side.

—

When you play high notes on the JUPITER-80, you might hear 

notes that fail to sound, whose pitch fails to rise, or a noise that 

changes depending on the note you play (a warbling, chirping, 

rustling, beeping, etc.)

This is usually because you have exceeded the highest note 

that the JUPITER-80 is able to produce, and won’t occur with 

the notes you would normally use. This does not indicate a 

malfunction.

—

Could the system setting “USB Song Sync Mode” have been set 

to “SLAVE”?

If “Sync Mode” is set to “SLAVE,” change the tempo of the external 

device that is transmitting MIDI clock data.