Troubleshooting; Dépannage; Guia Para La Solución De Problemas - Yamaha ELECTONE ME-55A Manual

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TROUBLESHOOTING
Please note that the appearance of any of the following phenomena does not indicate
a mechanical failure of the Electone.
Phenomenon
Cause and Solution
A crackling sound is sometimes heard.
Noise may be produced when either an electrical appliance is turned ON/OFF or an
electric power tool, such as a drill, is used in the proximity of the Electone. In such case,
plug the Electone into an electrical outlet located as far as possible from the device
that seems to be the source of the problem.
Interference from radio, TV, wireless radios, etc.
This is caused by the proximity of a high-power broadcasting station or amateur ham radio
station.
Noise is produced in a radio, TV, etc.
Noise may be produced in such equipment if the Electone is located nearby. Use such
equipment at a location as far as possible from the Electone.
The Electone sounds cause surrounding objects to
resonate.
Because the Electone produces many sustained sounds, resonance may be caused in
surrounding objects, such as cabinets or glass windows. If it becomes a problem, relocate
the resonating objects or lower the Electone's volume.
The volume of the selected voice varies with the
position played on the keyboard.
р
A A
Because the intrinsic nature of electronic music instruments in genera! is to change timbre,
it is extremely difficult to eliminate changes in the volume of a voice at different keyboard
positions. This Electone is designed and adjusted to eliminate any performance-related
problems. Its volume and timbre also vary widely according to the installation site and
system configuration of the Electone, the position of the audience, etc.
The sound of the notes is broken or seems to
include noise.
This effect occurs mainly with the voices of wind instruments, and is deliberately provided
to recreate the characteristic sounds of the actual instruments. It provides instrument
sounds with realistic features, such as reed vibration or the breath noises for BRASS.
Only one sound is heard when two notes are
simultaneously played on either the pedal key-
board, or when a LEAD voice is used by itself.
For practical performance reasons, this Electone has been designed so that one note can
be played at a time on the pedal keyboard or LEAD VOICES. If multiple keys are pressed
only the highest note will be sounded (high-note priority). (See Pages 2-3)
Only seven notes are heard when eight notes are
simultaneously
played on the upper or lower
keyboard.
А maximum
of seven notes can be simultaneously sounded on the upper or lower
keyboard. When AUTO BASS CHORD is in use, the maximum number of simultaneously
sounded notes becomes six notes for the upper keyboard, or four notes for the lower
keyboard. (See Pages 2-3)
Basic Registrations cannot be called to REGISTRA-
TION MEMORY.
The MEMORY button was released after turning ON the POWER switch. To properly call
the Basic Registrations, turn ON the POWER switch while pressing the MEMORY button,
then continue depressing the MEMORY button for 1-2 seconds.
The Sustain or User Vibrato effect is not added
even
though its panel button
is set to ON.
(ME-55A/ME-35A)
With ME-55A/ME-35A, the way in which SUSTAIN and USER VIBRATO take effect must
be set using the Multi Menu. If either is set to zero at the Multi Menu, its effect will not be
applied. (See Pages 6, 17-18)
n
ARPEGGIO
CHORD
(ME-55A/ME-35A)
ог
RHYTHMIC
(ME-15A)
is not
produced
even
though its volume is set.
The rhythm was not started. Because ARPEGGIO CHORD or RHYTHMIC is synchronized
with, and controlled by, the AUTO RHYTHM section, the rhythm must be ON for these
features to operate. (See Page 5)
The pitch in SINGLE
FINGER
mode
does not
change, even when pressing the higher or lower
keys of the keyboard.
SINGLE FINGER mode will only produce the notes within a fixed one-octave interval.
If notes having the same letter-name are pressed anywhere on the lower keyboard, the
chords that are sounded will share the same pitch. (See Page 10)
The harmony notes are not provided by MELODY
ON CHORD even through the upper and lower
keyboards are being played at the same.
1
The voice to be used for the harmony line has not been set. Choose a voice from UPPER
ORCHESTRAL VOICES and set its volume. If the melody is played in the bass range of the
| upper keyboard, the harmony notes may not be sounded. (See Page 12)
28

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