Yamaha MX49 Owner's Manual page 42

Appendix
Distorted sound.
 Are the effect settings appropriate?
Use of certain effects at certain settings may produce distortion.
[EDIT]  Select "02:Part"  [ENTER]  Select "05:Voice Insert Eff"/"05:DrumKit Insert Eff"  [ENTER]
 Are the filter settings appropriate?
Excessively high filter resonance settings can cause distortion.
[EDIT]  Select "02:Part"  [ENTER]  Select "02:Filter/EG"  [ENTER]
 Are any of the following volume parameters set so high that clipping is occurring?
[UTILITY]  [EDIT]  Select "01:Common"  [ENTER]  Select "05:General"  [ENTER]  "Volume"
[PART SELECT]  "Volume"
[UTILITY]  Select "01:General"  [ENTER]  "WAV Volume"
Sound is cut off.
 Is the entire amount of notes played (via your keyboard playback and Song/Pattern/Arpeggio playback) exceeding the maximum
polyphony of this instrument?
The maximum number of simultaneous notes may be less than 128 depending on the Voices used.
Only one note sounds at a time.
 When this situation occurs, the Mono/Poly parameter in the current mode is set to "mono." If you wish to play chords, set this parameter
to "poly."
[EDIT]  Select "02:Part"  [ENTER]  Select "01:PlayMode"  [ENTER]  "Mono/Poly"
Pitch or intervals are wrong.
 Is the Master Tune parameter in the Utility display set to a value other than "0"?
[UTILITY]  Select "01:General"  [ENTER]  "Tune"
 Is the Note Shift parameter in the Utility display set to a value other than "0"?
[UTILITY]  Select "01:General"  [ENTER]  "NoteShift"
 Are the Note Shift and Detune parameters of each Part set to values other than "0"?
[EDIT]  Select "01:Part"  [ENTER]  Select "01:PlayMode"  [ENTER]  "NoteShift"/"Detune"
No effect is applied.
 Check the on/off status of the Insertion Effect switch.
[EDIT]  Select "02:Part"  [ENTER]  Select "01:PlayMode"  [ENTER]  "InsSw"
[PART SELECT]  "InsSw"
 Is the Reverb Send or Chorus Send set to a value other than "0"?
[EDIT]  Select "02:Part"  [ENTER]  Select "01:PlayMode"  [ENTER]  "ChoSend"/"RevSend"
 Has the Insertion Effect type for the Part been set to "thru"?
[EDIT]  Select "02:Part"  [ENTER]  Select "05:Voice Insert Eff"/"05:DrumKit Insert Eff"  [ENTER]
The Edit Indicator appears, even when parameters are not being edited.
 Keep in mind that even though the Edit mode is not active, simply moving a Knob or playing back the MIDI data of the USB flash
memory may cause the Edit Indicator to appear.
42
MX49/MX61 Owner's Manual