Troubleshooting - Yamaha Electone STAGEA ELS-01C Owner's Manual

Troubleshooting

Problem
GENERAL OPERATION
The sound is not heard for about 10 seconds after
turning the power on.
A cracking noise is sometimes heard.
Interference from radio, TV, or other sources occurs.
The sound of the Electone causes surrounding
objects to resonate.
In the LCD display, there are some black points (unlit)
or white points (always lit).
Some buttons on the panel do not respond.
Some of the LEDs in the DISPLAY SELECT section do
not light.
The sound is too small even when the volume is set to
its maximum.
The Electone panel does not function normally or the
content of the memorized data has changed.
VOICES/RHYTHMS
The pitch may sound excessively high on the
Pedalboard and low in the higher registers of the
Lower and Upper keyboards.
Some of the Voices may contain cracking and/or noisy
sounds.
When too many keys are pressed, not all of the notes
sound.
Only one sound is heard when two notes of the Lead
or Pedal Voices are simultaneously played.
The Pedal Voices do not sound, even though the
volume is properly set.
When selecting a User button Voice or rhythm, the
Voice or rhythm title at the top of the LCD does not
match the selected Voice or rhythm.
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236 ELS-01/01C/01X Owner's Manual
Possible Cause and Solution
This is normal; the Electone takes a while to start up.
Noise may be produced when either an electrical appliance is turned on or an
electric power tool (such as drill) is used in the proximity of the Electone. If this
occurs, plug the Electone into an electrical outlet located as far as possible
from the device that seems to be the source of the problem.
This is caused by the proximity of a high-power broadcasting station, an
amateur ham radio setup or a mobile phone.
Because the Electone is capable of producing powerful bass sounds,
resonance may be caused in surrounding objects, such as cabinets or glass
windows. To avoid this, relocate the objects or lower the Electone's volume.
Unfortunately, this is a common characteristic of TFT-LCDs.
The UPPER/LOWER ORGAN FLUTES and LEAD VOICE 2 buttons are invalid
on the ELS-01. If you upgrade the ELS-01 to the ELS-01C/01X, these buttons
can be used.
The LEDs of on/off buttons (UPPER/LOWER ORGAN FLUTES, VOICE EDIT,
RHYTHM PROGRAM, and ROTARY SP SPEED) are lit when those functions
are turned on. The LEDs of other function's buttons momentarily light when the
functions are selected.
• The Master Volume may be set around the minimum position. Turn it
clockwise.
• The Expression Pedal may not be pressed down. Press it down with your
toe.
• The POWER switch of the speaker may have been turned off. Turn it on.
• (For the ELS-01C/01X) The REAR SPEAKER switch may have been set to
OFF. Switch it to ON.
This happens very rarely. Occasionally, power surges and spikes due to
electrical storms or other reasons may cause the Electone to malfunction and/
or alter the contents of memorized data. If this happens, perform the Factory
Set operation to reset the Electone (page 21).
This may occur when you compare the Electone's sounds with that of a piano.
Because of the difference of the harmonics structure, the tuning system of the
Electone is different from the piano in the higher and lower ranges.
You may find these mainly in the wind instrument Voices. These are purposely
added effects to the Voices to reproduce the characteristics of the wind
instruments such as the pipe vibrations, breath noises and squeaks.
Total polyphonic capacity (notes sounding for both Upper and Lower
Keyboards) is 14 notes. When you turn the Pedal Polyphonic mode to on, the
total is 14 for all keyboards, Upper, Lower and Pedalboard.
For practical performance reasons, the Electone has been designed so that
only one note of the Lead or Pedal Voices can be played at a time. If you want,
the pedal Voice can be set to polyphonic mode (page 40).
• The Single Finger or Fingered Chord mode of Auto Bass Chord is on. Turn
off the mode in the display (page 62).
• TO LOWER buttons in the Pedal Voice sections are turned on. Turn the
function off (page 26).
The currently assigned Voice or rhythm is displayed at the top of the LCD, and
remains until another Voice or rhythm has been selected.