Troubleshooting - Roland VIMA JM-8 Owner's Manual

20.

Troubleshooting

This section provides points to check and actions to take when the JM-8 does not function as you expect. Refer to the
appropriate section for the problem you are experiencing.
Symptom
Power does not turn on
No sound from the JM-8
Can't hear the song that is playing
Can't hear the vocal of a music CD / Can't hear
the melody of music files
"Buzz" is heard from external amplifier
Can't hear the signal source connected to the
AUDIO IN sockets
Your voice sounds strange
The pitch of the selected song is incorrect
Can't play an audio/mp3-format song
The SMF file name is different from the file
name shown on your PC
No sound when a MIDI device is connected to
JM-8
Action
Is the included AC adaptor/power cord correctly connected to an AC
outlet and to the JM-8? Do not use any AC adaptor or power cord other
than the ones included. Doing so will cause malfunctions.
Did you connect the JM-8 to an external amplifier or mixing console?
And did you switch it on?
Could the [MASTER VOL] knob be turned down? Select a higher volume
setting.
If you don't hear the song whose playback you started, did you set the
[BACKING] knob to the minimum value? Select a higher setting.
If the microphone connected to the [MIC 1] socket doesn't work, set the
[MIC 1] knob on the front panel to an appropriate value (not fully left).
If the microphone connected to the [MIC 2/GUITAR] socket doesn't work,
set the [MIC 2/GUITAR] switch on the JM-8's rear panel to "MIC".
Set the [MIC 2/GUITAR] knob on the front panel to an appropriate value
(not fully left).
If the guitar connected to the [MIC 2/GUITAR] socket doesn't work, set
the [MIC 2/GUITAR] switch on the JM-8's rear panel to "GUITAR".
Set the [MIC 2/GUITAR] knob on the front panel to an appropriate value
(not fully left).
Did you set the [BACKING] knob to the minimum value? Select a higher
level setting.
Could the [CENTER CANCEL] button be dimmed? If the [CENTER CANCEL]
button is lit, the vocal sound will be canceled from the audio file/CD
playback.
If the [MELODY MUTE] button is lit, the melody of the MIDI files will be
muted. Switch it off.
Is the external amplifier or other device used with the JM-8 connected
to a different AC power outlet? Connect the amplifier or other device to
the same AC outlet as the JM-8.
Did you select an "Overdrive" effect for the guitar you connected? In
that case, a little noise is normal.
Check the setting of the [AUDIO IN] knob on the front panel. Set it to an
appropriate value (not fully left)
Does the [VOCAL] button light? Switch it off.
Is the Master Tune setting appropriate?
Did you transpose the song?
Is the song in a format that the JM-8 is able to play?
Switch off the "Internal Name" parameter to see the same name as on
your computer screen.
Are all devices powered on? Are the MIDI cables connected correctly?
Did you select the correct MIDI channel?
Is the [RX¥ON] display button active? If not, switch it on.
Did you set the [BACKING] knob to the minimum value? Select a higher
level setting.
r
VIMA JM-8
Troubleshooting
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