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Appendix; Troubleshooting - Yamaha PSR-I400 Owner's Manual

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Troubleshooting

Appendix

Problem
When the instrument is turned on or off, a popping
sound is temporarily produced.
When using a mobile phone, noise is produced
The instrument is automatically turned off even if no
operation is done.
The volume is too soft.
The sound quality is poor.
The Style/Riyaz/Song/Arpeggio 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 set-
tings are reset.
No sound is produced even when the keyboard is
played, or a Song, Style, or Riyaz is being played back.
The footswitch (for sustain) seems to produce the oppo-
site effect. For example, pressing the footswitch cuts off
the sound and releasing it sustains the sounds.
No sound is produced even when playing keys in the
right hand area of the keyboard, although chords played
in the left hand area are recognized.
Not all of the Voices seem to sound, or the sound seems
to be cut off, when playing the keyboard, Arpeggio, Style
or Riyaz or Song.
The sound of the Voice changes from note to note.
The keyboard performance and playback of Style/Riyaz/
Song produces an unexpected or inappropriate sound,
and cannot be restored to the normal status.
The Style, Riyaz or Song does not start even when the
[START/STOP] button is pressed. The Arpeggio does
not start even when the note is pressed with the Arpeg-
gio turned on.
The volume of the Style, Riyaz or Song is too low.
The chords played in the left hand area cannot be recog-
nized even when the ACMP is turned on.
Style parts other than the Rhythm part produce no
sound.
The ACMP indicator does not appear on the display
when the [ACMP ON/OFF] button is pressed.
60
PSR-I400 Owner's Manual
Possible Cause and Solution
This is normal and indicates that the instrument is receiving electri-
cal power.
Using a mobile phone in close proximity to the instrument may pro-
duce interference. To prevent this, turn off the mobile phone or use
it further away from the instrument
This is normal. This occurs due to the Auto Power Off function
(page 14).
The batteries are low or dead. Replace all six batteries with com-
pletely new ones or completely recharged ones, or use the AC
adaptor.
Check whether a set of headphones or an audio cable is con-
nected to the [PHONES/OUTPUT], or not. When such a connec-
tion is made, no sound is output from the speaker of this
instrument.
Check the on/off status of the Local Control (page 49). Normally,
set this parameter to ON.
The polarity of the footswitch is reversed. Make sure that the foot-
switch plug is properly connected to the [SUSTAIN] jack before
turning on the power.
Check whether or not the Dictionary function (page 45) is used.
When used, this is normal.
You have exceeded 32 simultaneous notes, which is the maximum
polyphony (the maximum amount of notes that can be played
simultaneously) of this instrument. If the Main, Dual, and Split
Voices are being used along with playback of Arpeggio, Style,
Riyaz or Song, some notes/sounds may be omitted (or "stolen").
This is normal. The 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.
Using the LIVE CONTROL Knobs can produce dramatic changes
in the sound, but may also produce unexpected or undesired
sounds. If you want to restore the original, normal sound before
being changed by the LIVE CONTROL Knobs, change the Voice,
Style, Riyaz or Song, or press the [HARMONIUM/PIANO] button to
reset the panel settings.
Check the on/off status of the External Clock (page 49). Normally,
set this parameter to OFF.
Check the volume setting in the Functions (pages 42 and 47).
Check the Split Point setting (page 43). Set this to the appropriate
value.
Check the on/off status of the ACMP (page 22). Make sure to turn
ACMP on.
Check the on/off status of the [STYLE] lamp. When using a Style,
press the [STYLE] button to turn on the [STYLE] lamp.

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