Yamaha TYROS Owner's Manual page 165

PROBLEM
The Vocal Harmony effect sounds distorted or out-
of-tune.
The microphone input signal and Vocal Harmony
sound cannot be recorded.
When a voice is changed, the previously selected
effect is changed.
There is a slight difference in sound quality between
notes played on the keyboard.
Some voices have a looping sound.
Some noise or vibrato is noticeable at higher pitches,
depending upon the voice.
Some voices jump an octave in pitch when played in
the upper or lower registers.
The style chord does not change even when a differ-
ent chord is played or the chord is not recognized.
The displayed disk free area value does not coincide
with the actual value.
Appropriate harmony notes are not produced by the
Vocal Harmony feature.
The voice produces excessive noise.
The sound is distorted or noisy.
A strange "flanging" or "doubling" sound occurs.
The sound is slightly different each time the keys are
played.
The Main display does not appear even when turn-
ing the power on.
POSSIBLE CAUSE/SOLUTION
Your vocal microphone may be picking up extraneous sounds, such
as the style sound from the TYROS. In particular, bass sounds can
cause mistracking of the Vocal Harmony. To remedy this:
• Sing as closely to the microphone as possible.
• Use a directional microphone.
• Turn down the MASTER VOLUME, style volume, or song
volume control.
• Separate the microphone from the external speakers as much as
possible.
• Cut the Low band via the 3 Band EQ function in the MIC
SETUP display (page 132).
This is normal; recording the audio input of the microphone is not
possible.
This is normal, each voice has its own suitable preset values which
are automatically recalled when the corresponding Voice Set param-
eters are turned on (page 151).
This is normal and is a result of the TYROS' sampling system.
Some voices have a pitch limit which, when reached, causes this
type of pitch shift. This is normal.
• Are you sure you're playing on the left-hand section of the key-
board?
• You may be using single-finger type fingering (page 108).
The displayed value is an approximate value.
Make sure you are using the appropriate method to specify the har-
mony notes for the current Vocal Harmony mode. See page 133.
Certain voices may produce noise, depending on the Filter (Har-
monic Content/Brightness) or EQ settings of the Mixing Console
Filter. This is unavoidable due to the sound generation and process-
ing system of the TYROS. To avoid noise, change the above men-
tioned settings.
• The MASTER VOLUME control may be turned up too high.
• This may be caused by the effects. Try cancelling all unnecessary
effects, especially distortion-type effects.
• Some filter resonance settings in the Sound Creator display can
result in distorted sound.
• Is the gain of the Low band set too high in the Master EQ display
(Mixing Console — page 139)?
• Are the RIGHT1 and RIGHT2 parts set to "ON", for example, and
both parts set to play the same voice?
• If you are routing the MIDI OUT on the TYROS to a sequencer
and back to the MIDI IN, you may want to set Local Control (page
146) to "off" to avoid MIDI "feedback."
This may occur if a hard disk has been installed to the TYROS.
Installation of some hard disk units may result a long interval
between turning the power on and appearance of the Main display.
Appendix
Troubleshooting
165
TYROS Owner's Manual