Yamaha VL-1 Feature Reference page 184

Voice Setting Problems
Symptom
No sound.
Sound won't stop.
Wrong pitch.
Distorted sound.
Improper stereo positioning.
Can't play two notes
simultaneously.
Feature Reference Appendix
• Is the appropriate element selected (page 26)?.
• Make sure that the element level is not set to "0" (page 38)?.
• Make sure that the total amplitude level is not set to "0" (page
104)?.
• Make sure that the driver, pipe/strings, and tap output mixing
parameters are not all set to "0" (page 98)?.
• Make sure that the amplitude & filter sustain level is not set to
"0" (page 145).
• Check the pressure controller (page 65)?.
• Check the amplitude controller (page 71)?.
• Check the embouchure controller (page 66)?.
• Check the damping controller (page 80)?.
• Check the absorption controller (page 81)?.
• Some voices will not produce sound when played at extremely
high or low pitches.
• Make sure that the pressure EG mode parameters is not set to
"Disable" (page 129)?.
• Check the element detune, note shift, and random pitch param-
eters (page 37)?.
• Microtuning may be set to a tuning other than equal tempera-
ment (page 42)?.
• Check the effect pitch change parameters (page 50)?.
• Check the pitch controller (page 67)?.
• Some voices will change pitch when pressure or embouchure
control is applied.
• Check the effect distortion settings (page 51)?.
• Check the scream controller (page 72)?.
• Check the growl controller (page 74)?.
• Check the throat formant controller (page 75)?.
• Are the element pan L and R parameters set to values other
than "-64" and "63", respectively (page 38)?.
• Check the effect feedback delay settings (page 53)?.
• Make sure that the key mode and voice mode parameters are
set properly (page 31,32)?.
• Check the controller assigned to polyphony control.
180
Possible Cause