Yamaha D-85 - Troubleshooting Sound and Functionality; Auto Bass;Chord Troubleshooting; Sound Resonance and Pitch Issues

Trouble
Shootings
Incorrect operation and ignorance of the proper operating procedure are sometimes mistaken for trouble. [f you call in a serviceman in any of the cases given below,
it will be charged to you even if the warranty period is still effective.
“Trouble”
Cause
Remedy
Electrical “trouble”
No sound heard immediately after the power switch is
turned on.
It takes about 5 seconds for the Electone Organ to
become fully operational.
The Electone Organ is working properly and therefore is
not a cause for concern.
Frequent noise.
TV or radio reception quality is degraded when the
Electone is turned on.
Occasional interference from radio or TV broadcasts.
(1) Noise is caused when home electrical appliances such
as refrigerators and washing machines are switched on
and off.
(2) Failure in neon sign in your neighborhood or electric
drill, etc.
MS
The radio or TV set is being used in the immediate
vicinity of the Electone Organ.
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A broadcasting station with a high signal strength or an
amateur radio station is located nearby.
(1) Use a power outlet which is located the furthest
from the appliance which you suspect to be the
origin of the noise.
(2) Have the neon sign repaired.
(3) If you cannot locate the origin of the noise, get in
touch with your dealer.
Move the radio or TV set as far away from the Electone
Organ
as
possible.
Upgrade
TV
or
radio
antenna
system.
Try to identify the type of station: TV, FM radio,
AM radio, “Ham” operator, CB operator, etc.
Fluctuations in the sound volume, depending on the posi-
tion of the organ. Varies somewhat depending on the voices
selected.
Since one of the foremost features of an electronic musical
instrument is the capacity to change the tone color, it is
extremely difficult to even out the fluctuations in the sound
volumes of each keyboard caused by the tone colors. How-
ever, the Electone Organ is designed and adjusted to pre-
clude any such problems during actual performances what-
ever the tone color.
The sound level and the tonal character will vary accord-
ing to the installation location of the Electone Organ and
the listening position. Try various locations within the
room.
Only one note is heard even when two pedal keyboard or
solo keyboard keys have been depressed.
Only seven notes are heard even when more than seven
keys on the upper or lower keyboards are depressed,
The Electone Organ is designed so that only one note from
the pedal keyboard and solo keyboard and seven notes each
from the lower and upper keyboards can be sounded.
This is because of performance and design considerations.
The high notes are given priority with the pedal and solo
keyboards while the keyboard whose key has been
depressed first is given priority with the upper and
lower keyboards.
Handling “trouble”
Noise is heard when the Electone Organ is subjected to
vibration or shock.
The built-in reverberation unit employs a soft spring and
so vibration is transmitted.
(1) Take care not to subject the Electone Organ to strong
vibration or shock.
(2) Install the Electone Organ so that it does not shake.
(3) When moving the Electone Organ, switch off the power
or rotate the reverberation control to MIN, that
the reverberation effect is not produced and then move
the Electone Organ,
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