Appendix; Troubleshooting - Yamaha YPT-330 Owner's Manual

Appendix

Troubleshooting

Problem
When the instrument is turned on or off, a popping
sound is temporarily produced.
When using a mobile phone, noise is produced.
There is no sound even when the keyboard is played or
when a song or style is being played back.
Not all of the voices seem to sound, or the sound seems
to be cut off.
Playing keys in the right hand area of the keyboard does
not produce any sound.
The Style or Song does not play back when the [START/
STOP] button is pressed.
The ACMP ON indicator does not appear when the
[ACMP ON/OFF] button is pressed.
The Style does not sound properly.
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.
The sound of the voice changes from note to note.
The harmony doesn't sound.
• 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.
Power suddenly and unexpectedly turns off.
Possible Cause and Solution
This is normal and indicates that the instrument is receiving electrical power.
Using a mobile phone in close proximity to the instrument may produce inter-
ference. To prevent this, turn off the mobile phone or use it further away from
the instrument.
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 setting. (See page 42 Function 028.)
The instrument is polyphonic up to a maximum of 32 notes — including Dual
voice, Split Voice, auto accompaniment, song, and Metronome.
Notes exceeding this limit will not sound.
When using the Dictionary function (page 22), the keys in the right hand area
are used only for entering the chord root and type.
Is External Clock set to ON? Make sure External Clock is set to OFF; refer to
"Function Settings" on page 42 (Function 029).
Always press the [STYLE] button first when you are going to use any Style-
related function.
Make sure that the Style Volume (page 41 Function 001) is set to an appropri-
ate level.
Is the Split Point set to an appropriate key for the chords you are playing? Set
the Split Point to an appropriate key (page 41 Function 005).
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.
• The auto accompaniment will sometimes not change when related chords
are played in sequence (e.g., some minor chords followed by the minor sev-
enth).
• Two-note fingerings will produce a chord based on the previously played
chord.
• Playing two same root keys in the adjacent octaves produces accompani-
ment based only on the root.
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.
This is normal. The AWM tone generation method uses multiple recordings
(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 method of sounding the harmony effect (01–26) differs depending on the
selected type. For Types 01–05, turn the Auto Accompaniment on and play it
by pressing a chord in the auto accompaniment section of the keyboard, then
play some keys in the right-hand side to get the harmony effect. For Types
06–26, turning auto accompaniment on or off has no effect. However, it is nec-
essary to play two notes simultaneously for Types 06–12.
The batteries are low or dead. Replace all six batteries with completely new
ones, or use the optional AC adaptor.
This is normal and the Auto Power Off function may have been activated
(page 9). If you need to disable the Auto Power Off function, select "Off" in the
Function settings (page 43 Function 040).
PSR-E333/YPT-330 Owner's Manual
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