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Troubleshooting
Symptom Cause/Action Page
The wrong instrument is selected
when you press the [E. Piano],
[Strings], or [Other] button
Tone buttons [E. Piano] [Strings] [Other] also operate as buttons that select “Recommended Tones.”
Connecting a commercially-available CD-ROM drive to the USB ash drive connector and selecting a song from a CD-ROM
produced for the VIMA (VIMA TUNES) will automatically cause sounds appropriate for that song to be assigned to the [E. Piano],
[Strings], and [Other] Tone buttons, so that you can select “recommended” sounds by pressing one of these buttons.
p. 14
Eect does not apply
When you are using Dual play or Split play, and dierent eects are specied for the two selected tones, the eect will not be
applied to Tone 2 (when using Dual play) or the left-hand tone (when using Split play).
–
Reverberation remains even if You
defeat the Ambience eect
The LX-15’s piano sound faithfully simulates the depth and resonance of an acoustic piano, and this may give the impression of
reverberation even if you’ve defeated the Ambience eect.
Also, you may be able to eliminate some reverberation by reducing the value set for “Cabinet Resonance.”
p. 39
The sound of the higher notes
suddenly changes from a certain
key
On an acoustic piano, the approximately one and a half octaves of notes at the top of the keyboard will continue sounding
regardless of the damper pedal. These notes also have a somewhat dierent tonal character. LX-15 faithfully simulate this
characteristic of acoustic pianos. On the LX-15, the range that is unaected by the damper pedal will change according to the
key transpose setting.
–
High-pitched ringing is heard
Is the speaker cable connected correctly? p. 58
If you hear this in headphones:
Piano sounds that have a brilliant and crisp character contain substantial high-frequency components that may sound as
though a metallic ringing has been added. This is because the character of an actual piano is being faithfully reproduced, and is
not a malfunction. This ringing is more obtrusive if the ambience eect is applied heavily, so you may be able to minimize it by
decreasing the ambience.
If you don’t hear this in headphones:
It is likely that there is some other reason (such as resonances within the unit). Please contact your dealer or a nearby Roland
service center.
–
Low notes sound wrong, or are
buzzy
If you set the volume to the maximum setting, the sound may be distorted depending on how you perform.
If this occurs, turn down the volume.
Alternatively, lower the master gain.
p. 44
If you don’t hear this in headphones:
Performing at high volumes may cause the speakers or objects near the LX-15 to resonate. Fluorescent lights or glass doors may
also resonate sympathetically. In particular, this is more likely to occur for lower notes and higher volumes. You can take the
following measures to minimize resonances.
• Locate the speakers 10–15 cm (4–6 inch) away from walls or other surfaces.
• Keep the volume down.
• Move away from the objects that are resonating.
If you hear this in headphones:
It is likely that there is some other reason. Please contact your dealer or a nearby Roland service center.
–
Song does not play correctly
Only the sound of a particular
instrument in a song does not
play
Could a part be muted?
If the button indicator is out, the music on that part is not heard. Press the part button so the indicator is illuminated.
p. 26
Sound is heard from a muted part
Could the part mute volume be set to other than “0”?
If you set this to “0,” the sound of a muted part will be completely inaudible.
p. 26
Song volume is low Could the song volume be lowered? p. 25
Can’t play back a song saved in
USB ash drive
Could the Audio les of the format be played?
Audio les of the following format can be played back.
• File extension “.WAV”
• 16-bit linear
• “44.1 kHz” sampling rate
–
Is the lename extension “MID”?
Files with other lename extensions cannot be handled as song data.
–
Song tempo becomes unstable When playing a song from USB ash drive, the tempo may become unstable if there is an excessive amount of performance data. –
Song name in USB ash drive is
not shown
The song name will not be shown if the song information in the le is empty or consists only of spaces. –
Is the lename extension “MID”?
Files with other lename extensions cannot be handled as song data.
–
Can’t record / play back
Can’t record SMF Has one of the part buttons for recording been selected? p. 28
Can’t record audio Is a USB ash drive connected to the USB memory connector? –
Tone quality of the piano sound
changes when you record a
performance as audio
Thanks to its multiple number of speakers, each of which can be used to play a dierent portion of the overall sound, the LX-15 is
capable of producing piano sounds that possess great depth and seem to have three-dimensional presence.
Such eects are produced when you play something on the keyboard, or when you play back a song that's been recorded as an
SMF. However, when you make an audio recording, the song will consist of two channels (stereo), and such eects cannot be
reproduced.
–
The recorded performance
disappeared
Your recorded performance will disappear if you switch o the LX-15’s power or select a song.
There is no way to recover the lost performance. Before you turn o the power, save your recorded performance in Favorite or
USB ash drive.
–
Limitations regarding audio les
• Ambience (p. 18)
• Saving to Favorite (p. 29)
• Playback (muting) of individual parts (p. 26)
• Copy Song (p. 41)
51
Operation Guide Panel Descriptions Before You Play Performing Practicing Piano Designer
Convenient Functions
Appendix
Function Mode