Yamaha VL-1 Feature Reference page 183

Amplifier, Mixer, Connection Problems
Symptom
No sound.
Distorted sound.
Improper stereo positioning.
Utility Setting Problems
Symptom
No Sound
Wrong pitch.
No reverb.
Improper controller operation.
Feature Reference Appendix
• Is the amplifier/mixer power turned on?
• Is the amplifier/mixer volume set to an appropriate level?
• Are the VL1 outputs properly connected to the amplifier/mixer
inputs?
• Are the connection cables shorted, open, or otherwise faulty?
• Is the VL1 connected to a high-sensitivity microphone or instru-
ment input on your amplifier or mixer? Try turning the VL1
DOWN controls down to avoid overloading the amplifier/mixer
inputs.
• Check the level and pan controls on the sound system/mixing
console being used with the VL1.
• Is the local off mode selected (page 155).
• Are the MIDI transmit channel and receive channels matched to
those of the external MIDI device used (page 155)?
• Is the master tune parameter set properly (page 154)?.
• Is the keyboard transpose parameter set properly (page 153)?.
• Is the TG Setting Reverb parameter turned "on" (page 154)?.
• Are the Assignable Controllers parameters set properly (page
156)?.
• When the VL1 is initially shipped, or when the "FACTORY" data
file on the supplied disk is loaded, both Modulation Wheel 2 and
Foot Controller 2 are assigned to breath control.
• When the "CUSTOMER" data file on the supplied disk is loaded
Modulation Wheel 2 is assigned to MIDI control change number
013. In tbis case "normal" sound is produced with the modulation
wheel at its center position.
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Possible Cause
Possible Cause