Troubleshooting - Roland JV-1010 Owner's Manual

Troubleshooting

If no sound is produced, or if operation otherwise seems
wrong, first check the following points. If after trying the
following remedies, the unit still does not operate correctly,
please contact your Roland dealer or the nearest Roland
Service Center.
* Refer to the "Error Messages" (p. 53) if some kind of message
is displayed on the screen during operation.
The power does not come on.
- Is the AC adaptor properly plugged onto the wall and the
JV-1010?
No sound is produced.
- Is all other equipment, such as external amps and
speakers, properly connected?
- Is the power to the JV-1010 and all connected external
devices turned on?
- Is the JV-1010's VOLUME knob turned to MIN?
- Is the volume on any connected external devices turned
down?
- Has the volume been lowered by volume/expression
messages received from an external device?
- Have all connections been made properly?
When using the JV-1010 without a computer, please connect
audio cables or headphones (p. 18).
If using the JV-1010 connected to a computer, use a computer
cable or MIDI cable to make the connection to the computer
(p. 38). Then connect audio cables or headphones (p. 18).
- Is the sound audible with headphones connected?
If sound can be heard through the headphones, then the
cause may lie elsewhere, such as a short in an audio cable
carrying the signal to another device, a bad connection, or a
malfunction in a connected amp, mixer, or speakers.
- Is the specified Wave Expansion Board properly installed?
(p. 15)
WAVE-EXP patches and rhythm sets cannot be selected
unless the Wave Expansion Board is installed in the
designated slot.
- Is the COMPUTER switch on the JV-1010's rear panel set
to the correct position?
When using the JV-1010 while connected to a computer, set the
switch to the position appropriate for the connection method,
type of computer being used, and the driver settings (p. 38).
* Before changing the COMPUTER switch setting, first switch
off the power to the JV-1010.
Songs are not played back correctly.
- Are you playing songs created for the GS format?
While the JV-1010 is compatible with the General MIDI
System, GS Format is not supported, so such songs may not
play back correctly.
52
- If playing back GM scores, is the sound generator in GM
mode?
Switch to GM mode (p. 31).
No sound is produced, even when
playing back songs.
- Is the Rx Switch parameter set to OFF?
Set this to ON.
There is no sound for a specific part.
- Is the volume level for the part turned down?
Raise the volume for the part for which no sound is being
produced with the Level setting (p. 44).
- Is reception of MIDI messages enabled?
Set the Rx Switch parameter to ON.
- Does the part's MIDI receive channel match the MIDI
transmit channel of the connected MIDI device?
Set the MIDI receive channel with the Channel parameter.
The sound is distorted.
- Is a distortion-type effect being applied to the sound?
If the sound for a specific patch or part is distorted, lower the
volume level on that part (p. 44).
When the overall sound is distorted, lower the volume level
with the VOLUME knob.
The pitch has shifted.
- Has the JV-1010's tuning been shifted?
Check the Master Tune value (p. 50).
- Have the Coarse Tune and Fine Tune settings for the
specific parts been made?
Check the values for the Coarse Tune and Fine Tune
settings (p. 44).
The JV-1010 does not output MIDI
data.
- Is the COMPUTER switch on the JV-1010's rear panel set
correctly?
When outputting JV-1010 data through the COMPUTER
connector, set the COMPUTER switch to PC-2 or Mac
according to the computer and software being used (p. 38).
The JV-1010 does not output data from the COMPUTER
connector when the COMPUTER switch is set to MIDI. In this
case, data is output from the MIDI OUT connector.
The sound is interrupted.
- Is the polyphony (maximum number of voices) being
exceeded?
When more than 64 voices are used simultaneously, the
voices exceeding this limit of 64 are interrupted.
Set a sufficiently high value as the Voice Reserve setting for
parts you want to make sure are not interrupted (p. 44).