Roland U-20 Owner's Manual page 156

2.
Troubleshooting
2.
Troubleshooting
I
No
sound
or not
enough volume
INo sound
or not
enough volume
in
ROM
play
mode
Ols
VOLUME
too
low?
Adjust the volume
settings of the
U-20 and
the mixer/
amp
system.
OAre
the outputs connected correctly?
If
you
hear soimd
in
the headphones, the
problem
is
probably
in
the
amp
or cable.
Check
the connections.
^No sound
or
not
enough volume
in
modes
other than
ROM
play
OAre
the
key
range and
velocity
range
settings correct
for
each Part?
(a- page
95)
OAre
the Part
or
Timbre
levels too
low?
(o-page
51, 61)
OHas
control change data been
received from
external
MIDI
devices or
controllers,
causing Part
level
or
Timbre
level settings to
be lowered
?
Select
(or re-select) a
Sound
Patch.
Ols
the
PCM
card containing the
specified
tone inserted
correctly ?
(o-page
60)
No
sound
or not
enough volume
In
Link
Play,
Keyboard
Patch, or
Sound
Patch
modes
ODoes
the
Tx
channel
of
the
keyboard match
the
Tx
channel
of
each Part?
Check
these
settings in the sub-display
of
Sound
Patch
mode,
(D-page
122)
Ols
local
control turned Off?
(o-page
108)
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