Troubleshooting - Yamaha Electone STAGEA ELC-02 Owner's Manual

Troubleshooting

Troubleshooting
Problem
GENERAL OPERATION
A click or pop is heard when the power is
turned on or off.
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.
When sustain length is set to HOLD,
previously played notes are cut off.
Only one sound is heard when two notes of
the Lead or Pedal Voices are simultaneously
played.
204 ELC-02/ELCU-M02 Owner's Manual
Possible Cause and Solution
Electrical current is being applied to the instrument. This is normal.
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
Electone.
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.
• The POWER switch of the speaker 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 23).
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.
Since the HOLD setting causes notes to keep sounding, the cumulative notes
(elements) may go over the maximum elements that the Electone can sound.
When this occurs, previously played notes are cut off.
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 42).