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CHAPTER
IV;
REFERENCE
Troubleshooting
If
for
some
reason
you do
not hear the
sound you
expect
to,
or
suspect
that
something
is
wrong
with the
way
the
unit
is
operating,
first
check
through
the
items
that
follow.
If
you
are
still
unable
to
correct the
problem,
consult
your
retailer
or
contact
the nearest
Roland
Service
Station.
* If
an
unfamiliar
message appears
in
the display
during
use,
check
"Error
Messages"
(p.
52)
for
an
explanation.
No
Sound
Produced/Level Too
Low
•
Are
you
sure
connections with
all
other devices
have been
made
properly?
•
Have
you checked
the amplifier
and/or mixer
you
are using
to
make
sure
that
power
is
ON
and
the
volume
is
at
a suitable level?
•
Are
you
sure the
INPUT
LEVEL knob
is
not
set
too
low?
•
Do
you have
Bypass
turned
ON?
If
Bypass
is
set at
"Output Mute" and you
then
turn
Bypass
ON,
not
even
the direct
sound
will
be
heard
(p.
36).
•
Is
the
sound produced
normally
if
you
switch
to a different
Program
Number, and
then
come
back and
select the
one
in
question?
If
so,
it
means
that
the
volume was
being suppressed temporarily
due
to a
change
in
the
value
of a
parameter
specified
for
Control
Assign.
If
sound
is
not
produced
normally
after
trying
the
above,
you
should recheck every
setting that
pertains
to
volume
for that
Program
Number
(Total
Level,
Control Assign,
etc.).
•
Have
you checked
for
damaged
cables?
Replace any
damaged
cables.
Sound
is
Distorted
(The ^^OVER"
segments
in
the
Level
Meter
light
frequently)
•
Do
you have
the
INPUT
LEVEL knob
at
an
appropriate
level?
(p.
10)
•
Do
you have
the
INPUT/OUTPUT
LEVEL
switch
on
the
rear
panel
set to
the position appropri-
ate
for
the devices
you
have connected?
•
Could
the
output
level
be
too
great
on
the external unit
you have
connected?
•
Is
the
distortion
eliminated
when
you
try
switching
to
another
Program
Number?
If
so,
you
should recheck every
setting that
pertains to
volume
for
the
Program
Number
in
question
(Total Level,
Control
Assign,
etc.).
Cannot
Obtain Expected
Control
Over Parameter
Specified
for
Control Assign
•
Have
you checked
to
make
sure the
settings
made
for
the
parameter
to
be
controlled
were
correct?
Make
sure the specified range
of
change
is
not too
narrow.
Recheck
to
make
sure the
MIDI
channels
on
both
units
match
if
expecting
to
use
MIDI
messages
received
from an
external
device
to
control a
parameter.
Cannot
Obtain Expected
Changes
in
Program Numbers
•
First
make
sure the
MIDI
channels
on
your
units
match.
If
changes
to
unintended Program
Numbers
occur,
recheck
the
settings for
the
Program
Change
Map
(p.
42).
57
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