Roland VP-770 - Manual (Page 122)

122
Troubleshooting
Problem Explanation
Power won’t turn
on! Is the power cord connected correctly? ( ➞ p. 17)
No sound! Is the VP-770 correctly connected to your amp, speaker,
or headphones? ( ➞ p. 18)
Is the VP-770’s volume raised? ( ➞ p. 26)
Vocal Designer
won’t sound! Even if you’re playing the keyboard, the Vocal Designer
part won’t sound unless you’re vocalizing into the
microphone.
➞ For details, refer to “Performing with Vocal Designer”
(
➞ p. 27)
Is a Vocal Designer sound button lit? ( ➞ p. 27)
Is your microphone switched on?
Is your microphone connected correctly? ( ➞ p. 19)
Is the microphone input level raised? ( ➞ p. 28)
Is the [MIC ON/OFF] button lit? ( ➞ p. 31)
Could the “Split” parameter be turned “ON”? ( ➞ p. 54)
DIRECT (MIC)
won’t sound! Is the microphone input level raised? ( ➞ p. 28)
Is the [MIC ON/OFF] button lit? ( ➞ p. 31)
Ensemble won’t
sound! Is the Ensemble [LEVEL] slider raised? ( ➞ p. 44)
Is an Ensemble sound button lit? ( ➞ p. 42)
Could the “Split” parameter be turned “ON”? ( ➞ p. 54)
Bass & Percussion
won’t sound! Is a Bass & Percussion sound button lit? ( ➞ p. 48)
Bass & Percussion won’t sound outside its range of keys
(
➞ p. 48).
The volume level
of the instrument
connected to EXT
IN jack is too low. Could you be using a connection cable that contains a
resistor?
Use a connection cable that does not contain a resistor.
LEVEL indicator
does not light! If the [MIX TO MIC] switch is “OFF,” the LEVEL indicator
will no longer respond to the sound from the EXT IN
jack. In this case, temporarily set the [MIX TO MIC]
switch “ON” and adjust the input level. (
➞ p. 113)
Voice Expression
doesn’t work! Is the microphone input level raised? ( ➞ p. 28)
Is the [MIC ON/OFF] button lit? ( ➞ p. 31)
Could you be operating the Expression pedal?
Advancing the Expression pedal all the way to the
maximum position means that the same eff ect as Voice
Expression is already applied to the maximum extent,
so no further eff ect can be obtained.
Voice Expression
works too much! Lower the voice expression sensitivity ( ➞ p. 66). This
will prevent the Voice Expression eff ect from applying
until your voice reaches a louder volume.
Problem Explanation
Sound continues
even though I’m
not playing the
keyboard! Could you be using a hold pedal that has the incorrect
polarity? Please use a Roland DP series hold pedal.
The pitch is wrong! Could the [TRANSPOSE], [+OCT], [-OCT] button be on?
( ➞ p. 52)
Could the Vocal Designer [8va] button be on? ( ➞ p. 35)
Is the Master Tune set correctly? ( ➞ p. 98)
Could something be resting on the D Beam? ( ➞ p. 60)
The volume
decreases when I
switch sounds! Could you be pressing the expression pedal?
When you switch sounds, the expression pedal value is
reset to the minimum position. After you’ve switched
sounds, please operate the expression pedal once
again.
The notes sound
strange in the
upper registers of
the keyboard. Sometimes when playing the keys in the upper part of
the VP-770’s keyboard, the sound may stop, or the pitch
may stop rising; or with certain keys, there may be
intermittent noise. This occurs mainly when the VP-770’
s upper pitch limit is exceeded, so this issue doesn’
t arise in the ranges normally used. But, in any case, it
does not indicate a malfunction.
When the volume
is raised, there are
noises! Could the [LEVEL] knob of EXT IN on the rear panel be
turned all the way to the “MIC” side?
If the [LEVEL] knob of EXT IN on the rear panel
(
➞ p. 20) is set maximum to the “MIC” side, there
may be noises. There might be noises even if there is
nothing connected to the EXT IN jack, but this not a
malfunction. The noise can be reduced in the following
way.
Turn the [LEVEL] knob of EXT IN to the “LINE” side
until the noise is less noticeable.
If a microphone is connected to the [MIC] jack, set
the [MIX TO MIC] switch to “OFF.” •
•