Troubleshooting - Roland JP-8080 Owner's Manual

Troubleshooting

If there is no sound, or if the instrument does not operate the way that you expect, check the following points
first. If this does not resolve the problem, contact your dealer or a nearby Roland service center.
* Roland will take no responsibility for the recovery of any settings or data, nor for any damages incurred thereby.
Power does not turn on
Is the Power cord connected correctly to the JP-8080
and to an AC outlet?
Check the Power cord connections.
No sound/Volume is low
Is the power of the connected devices turned on?
Make sure that the power of your amp or mixer system
is turned on.
Is the volume turned down?
Check the volume of the JP-8080 and of the connected
amp or mixer.
Is there sound in the headphones?
If there is sound in the headphones, it is possible that
the connection cables are broken, or that the amp or
mixer is malfunctioning. Check the connection cables
and your other equipment once again.
Is the Demo Song playback selected?
Press [EXIT] to exit Demo Song playback mode (p.121).
Is the Local Switch turned OFF?
Turn the Local Switch ON (p.122).
Are the AMP section levels at a low setting?
Check the [LEVEL] settings of the AMP section (p.76).
Is the Sustain level of the AMP ENVELOPE section
set too low?
Check the [S] setting of the AMP ENVELOPE section
(p.76).
Is the frequency of the FILTER section set too low?
Check the [CUTOFF FREQ] setting of the FILTER sec-
tion (p.73).
Is the rate of the LFO1 section set to slow?
Check the [RATE] setting of the LFO1 section (p.77).
170
Have volume messages been received from an
external MIDI device to lower the volume?
Check the volume.
Do the transmit channel and the receive channel
match?
Make sure that the transmit and receive channels of the
JP-8080 and the external MIDI device match (p.118, 124).
Is the Individual Trigger Switch turned ON?
Turn the Individual Trigger Switch OFF (p.116).
Is the External Trigger Switch turned ON?
Turn the External Trigger Switch OFF (p.121).
No sound even though you are
inputting an external sound
Has the volume of the external device been turned
down?
Check the volume of the connected external device.
Has the level of the EXTERNAL INPUT section
[INST/LOWER]/[VOCAL/UPPER] been turned
down?
Check the setting of the EXTERNAL INPUT section
[INST/LOWER]/[VOCAL/UPPER] (p.71).
Is the EXTERNAL INPUT section [REAR/FRONT]
set correctly?
If inputting from the VOCAL/UPPER jack, turn this off
(REAR). If inputting from the MIC jack, turn this on
(FRONT) (p.71).
Has the OSC 2 section [EXT] been turned off?
If inputting from the INST/LOWER jack, turn the
Lower [EXT] on. If inputting from the VOCAL/UPPER
jack, turn the Upper [EXT] on (p.71).
Has the OSC COMMON section [OSC BALANCE]
been set to the OSC 1 position?
If inputting from the INST/LOWER jack, set the Lower
[OSC BALANCE] to the OSC 2 position. If inputting
from the VOCAL/UPPER jack, set the Upper [OSC
BALANCE] to the OSC 2 position (p.71).