Symptom

•No sound.

Possible Causes

•Is the amplifier/mixer power turned on?

•Is the amplifier/mixer volume set to an appro- priate level?

•Is the VL70-m volume control set to an appro- priate level?

•Are the VL70-m outputs properly connected to the amplifier/mixer inputs?

•Are the connection cables shorted, open, or otherwise faulty?

•Is the HOST SELECT switch set appropriately for your system (page 20)?

•Is the echo back (or MIDI THRU) function on your computer or sequencer set properly?

•Is the VL70-m MIDI receive channel set properly (pages 34 and 38)?

•Is the PLAY mode Volume parameter set properly (pages 32 and 38)?

•Is the PLAY mode Master Volume parameter set properly (page 41)?

•Is the PLAY mode Expression parameter set properly (page 38)?

•Are the filter and EG attack times set to unusually long values (page 72)?

•Are the high and low note limit parameters in the “Others” edit mode set to appropriate values (page 81)?

•Is the Voice Level parameter in the “Others” edit mode set to an appropriate value (page 79)?

•Is the Breath Mode parameter set properly (page 96)?

•If a WX-series Wind MIDI Controller is unplugged from the VL70-m while no breath is applied to the controller, the breath value can get “stuck” at “0”, resulting in no sound output.

Symptom

•Volume too low.

Possible Causes

•Is the PLAY mode Volume parameter set properly (pages 32 and 38)?

•Is the PLAY mode Expression parameter set properly (page 38)?

•Is the PLAY mode Master Volume parameter set properly (page 41)?

•Is the Voice Level parameter in the “Others” edit mode set to an appropriate value (page 79)?

•Are the “Others” edit mode Velocity Depth and Velocity Offset parameters set to appropriate values (page 81)?

Symptom

•Distorted sound.

Possible Causes

•Is the VL70-m connected to a high-sensitivity microphone or instrument input on your amplifier or mixer? Try turning the VL70-m DOWN controls down to avoid overloading the amplifier/mixer inputs.

•Is a distortion-type effect being used (page 94)?

Symptom

•Wrong pitch.

Possible Causes

•Is the master tune parameter set properly (page 98)?

•Is the transpose or system transpose parameter set properly (pages 33 and 41)?

•Is the note shift parameter set properly (page 35)?

•Is the “Others” edit mode Detune parameter set properly (page 79)?

•Are inappropriate RPN Fine Tune or RPN Coarse Tune MIDI message being received from an external MIDI device?

Symptom

•Can only play one note at a time (i.e. no

polyphony).

Possible Causes

•The VL70-m is a monophonic tone generator which is capable of producing only one note at a time.

108Appendix