Roland JV-880 - Troubleshooting No Sound

TROUBLESHOOTING
Check through the following
situations
and conditions
when
your JV-880
fails to operate
properly.
No sound
•
Check
that the
JV-880,
amplifier
and mixer
are all
turned
on.
•
Check
that all
devices are
connected
correctly and
securely.
•
Check that the connecting
cables are
not defective.
•
Check whether
the sound is
output
through
a connected
set of headphones. If
you can
hear the
sound normally
through
the headphones,
the
connected device
or
cables
are
probably
the
cause of the problem.
•
Check
that the
volume
of the
amplifier, mixer or external
MIDI
sound source are
set to
suitable levels.
•
Check
that the volume
of JV-880
is
set
to
a suitable
level.
Any of the following
settings
may apply:
O
The
position of
the
VOLUME
knob
O
The Part
level value (Part
parameter:
P.7-1
0)
O
Patch level value
(Patch
Common
parameter: P.6-8)
O
TVA level value (Tone
parameter:
P.6-43; Rhythm
Tone
parameter: P.8-1
8)
O
The value
of the
volume
data received via MIDI
IN
•
Check that the MIDI receive
switch
(P.7-1
5)
of the Part
parameter
(Performance)
is on.
•
Check that the Tone switch
for the Patch
is on.
O
(Tone parameters)
TVF
cutoff
value
(P.6-35)
TVF
envelope depth
value
(P.6-38)
The velocity sensitivity value and the
key
follow setting of
the
TVF envelope
(P.
6-40,
6-41)
The level setting
of
TVF envelope (P.6-42)
O
The
depth
setting when the modulation/aftertouch/
expression control parameter
is
set to cutoff (Tone
parameter: P.6-1
8)
i
Check that the TVA level of the Patch Tone or Rhythm
Tone is
set to
0. Any of
the
following settings
may
apply:
O
(Tone parameters)
Dry level value (P. 6-52)
TVA level value (P.6-43)
The
velocity
sensitivity value and the time key follow setting
of the
TVA
envelope (P.
6-48,
6-49)
The
level setting of TVA envelope (P.
6-50)
TVA
delay time value (P.6^47)
O
The depth
setting when the modulation/aftertouch/
expression
control parameter is set to
level (Tone
parameter: P.6-1
8)
)
The sound range
may be limited
depending on the
wave selected.
Check the following parameter
for the
various sections:
•
Check that the MIDI
channel has
been set properly. Any
of the following settings
may
apply:
O
Coarse
tune value (Part:
P.7-1
1
;
Tone:
P.6-27; Rhythm
Tone
parameter:
P.8-9)
O
The value of the Patch receiving
channel
(System Common
parameter: P. 5-5)
O
The value
of the receiving
channel (Part parameter: P.7-1
2)
>
Sound may
not be produced if:
1)
the cutoff is set to
and
the
TVF
filter
type for the Tone of
a Patch or
a
Rhythm
Tone is set to LPF, or
2)
the cutoff is
set to
127
and
the filter
type is set to HPF. Any
of
the following
settings
may apply:
>
Check
that the JV-880 is
not
in
the ROM
play mode.
The internal
sounds
of the
JV-880
will not
sound from
received MIDI IN
performance
data when the
instrument is in the
ROM
play
mode.
t
When the output
mode is 4
OUT and
the output select
parameter is set
to
SUB
OUTPUTS:
O
The sound output
through the
SUB OUTPUTS
cannot be
heard over the
headphones.
O
The sound is
output through the MAIN
OUTPUTS
when
the
connecting cable
is not connected to
the
SUB
OUTPUT.