Yamaha PSR-E433 Owner's Manual - Page 60

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/Pattern/Song/Arpeggio stops unexpectedly or will not play. The recorded data of the song, etc. does not play correctly. The LCD display suddenly goes dark, and all panel settings are reset. No sound is produced even when the keyboard is played, or a Song, Style, or Pattern is being played back. 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. 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 Pattern or Song. The sound of the Voice changes from note to note. The keyboard performance and playback of Style/Pattern/Song produces an unexpected or inappropriate sound, and cannot be restored to the normal status. The Style, Pattern 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 Arpeggio turned on. The volume of the Style, Pattern or Song is too low. The chords played in the left hand area cannot be recognized even when the ACMP is turned on. Style parts other than the Rhythm part produce no sound. The Styles numbered 174-186 produce no rhythm drum sound even when the [START/STOP] button is pressed. The ACMP indicator does not appear on the display when the [ACMP ON/OFF] button is pressed. 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 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 completely new ones or completely recharged ones, or use the AC power adaptor. Check whether a set of headphones or an audio cable is connected to the PHONES/OUTPUT, or not. When such a connection is made, no sound is output from the speaker of this instrument. Check the on/off status of the Local Control (page 50). Normally, set this parameter to ON. 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. 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, Pattern or Song, some notes/sounds may be omitted (or "stolen"). This is normal. The 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. Using the 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 Knobs, change the Voice, Style, Pattern or Song, or press the [PORTABLE GRAND] button to reset the panel settings. Check the on/off status of the External Clock (page 50). 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. This is normal. Style numbers 174-186 have no rhythm parts, so no rhythm will play. When one of these Styles is selected, turn ACMP on, then specify the chord in the left hand area to play Style parts other than the Rhythm part. Check the on/off status of the [STYLE] lamp. When using a Style, press the [STYLE] button to turn on the [STYLE] lamp. Appendix 60 PSR-E433 Owner's Manual