Yamaha VP-1 Owner's Manual page 156

No effects
Problems caused by Inappropriate system settings
No sound
Every alternate note on the keyboard fails to play.
Keys don't produce the expected pitch.
Controllers don't provide expected control.
Key-strike force does not affect velocity.
• Remember that the VP1 does not apply effects to the signals going to the ELEMENT
jacks. Effects are only applied to signals to the OUTPUT jacks.
• Check that the "Local" parameter is set to "on".
• If you are trying to drive the VP1 from an external MIDI: does the transmit channel
of the external device match the receive channel on the VP1?
• The Note On/Off parameter is probably set to "odd" or "even". Change the setting to
"all".
• Check the setting of the "Keyboard Transpose" parameter.
• Check the setting of the "Master Tune" parameter.
• Is voice microtuning affecting the pitch?
• Are controllers firmly connected?
• Have you changed the Assignable Controller settings?
• Remember that when "Controller Hook" is "on", controllers do not become effective
until they move past the corresponding internal controller settings.
• Have you selected an appropriate velocity curve?
• The "Fixed Velocity" parameter may be set to a value other than "off".
Troubleshooting
( REFERENCE: 2-8)
( REFERENCE: 2-8)
( REFERENCE: 2-8)
( REFERENCE: 2-6)
( REFERENCE: 2-4)
( REFERENCE: 1-28)
( BASICS: 1-10)
( REFERENCE: 2-10)
( BASICS: 2-4)
( REFERENCE: 2-6)
( REFERENCE: 2-6)
REFERENCE
Appendix
App - 6