Yamaha PSR-E423, Руководство пользователя

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Owner’s Manual
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Troubleshooting
Problem Possible Cause and Solution
When the instrument is turned on or off, a popping
sound is temporarily produced. This is normal and indicates that the instrument is receiving electrical
power.
When using a mobile phone, noise is produced. Using a mobile phone in close proximity to the instrument may produce
interference. To prevent this, turn off the mobile phone or use it further
away from the instrument.
There is no sound even when the keyboard is played
or when a song or style is being played back. Check that nothing is connected to the PHONES/OUTPUT jack on the
rear panel. When a set of headphones is plugged into this jack, no sound
is output.
Check the Local Control on/off. (See page 74.)
Playing keys in the right hand area of the keyboard
does not produce any sound. When using the Dictionary function (page 65), the keys in the right hand
area are used only for entering the chord root and type.
The volume is too soft.
The sound quality is poor.
The rhythm stops unexpectedly or will not play.
The recorded data of the song, etc. does not play cor-
rectly.
The LCD display suddenly goes dark, and all panel
settings are reset. The batteries are low or dead. Replace all six batteries with completely
new ones, or use the optional AC adaptor.
The style or song does not play back when the
[START/STOP] button is pressed. Is External Clock set to ON? Make sure External Clock is set to OFF; refer
to “External Clock” on page 74.
The style does not sound properly. Make sure that the Style Volume (page 62) is set to an appropriate level.
Is the split point set at an appropriate key for the cords you are playing?
Set the split point at an appropriate key (page 63).
Is the “ACMP ON” indicator showing in the display? If it is not showing
press the [ACMP ON/OFF] button so that it does show.
No rhythm accompaniment plays when the [START/
STOP] button is pressed after selecting style number
150 or a style between 162 and 174 (Pianist). This is not a malfunction. Style number 150 and style numbers 162–174
(Pianist) have no rhythm parts, so no rhythm will play. The other parts will
begin playing when you play a chord in the accompaniment range of the
keyboard if style playback is turned on.
Not all of the voices seem to sound, or the sound
seems to be cut off. The instrument is polyphonic up to a maximum of 32 notes. If the Dual
voice or Split voice is being used and a style or song is playing back at the
same time, some notes/sounds may be omitted (or “stolen”) from the
accompaniment or song.
Some notes don’t sound when playing multiple notes
simultaneously on the keyboard, or some notes don’t
sound when playing arpeggios. You have exceeded 32 simultaneous notes, which is the maximum polyph-
ony (the maximum number of notes that can be played simultaneously) of
the instrument. The instrument will play normally as long as no more than
32 notes are being played at once, both on the keyboard and by any auto-
matic playback functions.
The footswitch (for sustain) seems to produce the
opposite effect. For example, pressing the footswitch
cuts off the sound and releasing it sustains the
sounds. The polarity of the footswitch is reversed. Make sure that the footswitch
plug is properly connected to the SUSTAIN jack before turning on the
power.
The sound of the voice changes from note to note. This is normal. The AWM tone generation method uses multiple record-
ings (samples) of an instrument across the range of the keyboard; thus,
the actual sound of the voice may be slightly different from note to note.
The wrong notes sound when the keyboard is played. Perhaps the performance assistant technology is turned on.
Press the [PERFORMANCE ASSISTANT] button to turn it off.
The ACMP ON indicator does not appear when the
[ACMP ON/OFF] button is pressed. Always press the [STYLE] button first when you are going to use any style-
related function.
Appendix
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