Roland R-8M Owner's Manual page 73

TROUBLESHOOTING
If
there
is
no sound or
if
the unit
appears
to
be
operating incorrectly, check
the
following
points
first. If
you
are unable to solve
the
problem,
consult your dealer or a nearby
Roland
service
station.
No sound/Volume
is
too
low
•
Is
the
volume knob
turned
down?
Check
the
volume
of the
R
-
8M
and
the
volume
of
the
mixer and amp.
•
Is
there
sound
in the
headphones?
If
there
is
sound
in
the headphones,
the
problem
is
either in the connecting cable or
in
the mixer/amp
system.
Check
the connections and
the
mixer/amp system (cr
P.
8).
•
When
you
transmit
MIDI
message
to the
R
-
8M,
does
the
MIDI
message
indicator
light?
If
the indicator does not
light,
check the
MIDI
channel of
the transmitting
device and
the
MIDI
cable
connections.
•
Is
the
ROM
play display selected?
The
R
-
8M
will not receive
MIDI
message
in the
ROM
Play mode.
Instrument
section does not
sound
•
Are
the instruments correctly
assigned?
Instrument assign
(crp.
26)
•
Are
the output assignments
set
to
MULTI
1
—
6?
instruments
set to
MULTI
1
—
6
will
not be
sent
from
MIX
OUT.
Output assign
(
a-
p. 28)
•
Is
Layer
function turned
on?
If
Layer
function
is
on, there
will
be no sound even
if
note
message
for
note
numbers 77
—
108
is
received.
Layer
function
(
cr
P.
25)
•
Are
the
volume-related parameters
set correctly?
Volume
(o-P.
25),
Level
(t=rp.
28)
•
Has
the
volume
been lowered by volume messages
received from an
external
device?
Reselect the Patch.
Performance
section
does
not
sound
•
Is
the output assign
set to
MULTI
1
—6?
When MULTI
I
—6
is
selected the
sound
will not
be
sent
from
MIX
OUT.
Output assign
(c7- p.
38)
•
Is the
key range
set correctly?
Key
range high/low
(
o-
p. 35)
•Are
the
volume-related parameters
set correctly?
Volume (cr
P.
35)
•
Has
the
volume
been lowered by
volume
messages
received from an external
device?
Reselect the Patch.
The sound
breaks
off
•Are
you
playing too
many
instruments at
once?
The
R-8M
can produce up
to
12
simultaneous
notes.
A
single
R-8M
cannot produce
more
than
12
notes
at
once.
•Are
the stack settings correct?
Stack
(cr
p. 58)
•
Is
the assign type set to
MONO
or
EXC?
Instrument Section
(
o-
p. 28),
Performance
Section
(
cr
P.
38)
•
Is
the "note
off
switch turned on?
Instrument Section
(
cr
p.
30),
Performance
Section
(
cr
p. 38)
71