Roland Mobile AC Mode D'emploi page 11

Troubleshooting
If the system does not work as you expect, check the following points first.
Problem
Power won't turn on
No sound/
Insufficient volume
Insufficient volume from the
speakers
The volume level of the device
connected to AUDIO jacks are
too low
Sound is distorted or noisy
Effect not applied
Items to check
Could the batteries be
exhausted?
Is the specified AC adaptor (sold
separately) connected correctly?
Are connections with other
devices correct?
Is the [VOLUME] knob set
appropriately?
Could headphones be
connected?
Could you have connected a
condenser microphone that
requires a phantom power
supply?
Could the batteries be
exhausted?
Could you be using a connection
cable that contains a resistor?
Could each [VOLUME] knob be
raised excessively?
Is the input level from the
connected device appropriate?
Could the batteries be
exhausted?
Could the [CHORUS] switch be
turned off?
Could the [REVERB] knob be
OFF?
Action
When operating on battery
power only, the power indicator
will become dim during play
when battery power gets too
low. Install fresh batteries.
Check the connection once
again. Never use any AC adaptor
other than the specified model.
Check the connections again.
Adjust the volume appropriately.
If headphones are connected, no
sound will be produced from the
unit's speakers.
The MOBILE AC is not equipped
to provide phantom power, so
condenser microphones that
require phantom power cannot
be used.
Install fresh batteries.
Use a connection cable that does
not contain a resistor.
Turn each [VOLUME] knob
toward the left to adjust the
volume appropriately.
Lower the volume of the
connected device.
Sounds may distort easily or
may cut off when played at
high volume as the battery
power begins to fade, but this is
normal and does not indicate a
malfunction.
In such instances, either replace
the batteries or use the AC
adaptor (sold separately).
Press the [CHORUS] switch to
turn it on.
Turn the [REVERB] knob toward
the right to adjust the reverb
depth.
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