Yamaha B-30AR Manual page 14

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Electone is not out of order If...
1. .....the set does not go on when the power switch is turned on. Check the following.
Is the AC plug fully inserted into the electric wall outlet?
Reinsert it to be sure.
Is there power
coming from that outlet?
If there is power in the outlet but the Electone does not play, unplug the cord and contact your
Yamaha dealer. There are NO USER SERVICEABLE
PARTS inside.
2. .....a sound should occor the instant you turn on the switch.
This merely indicates normal operation consequent to a surge of electricity in the main amplifier.
3. .....0ccasional unpleasant static occurs.
In the majority of such cases, the cause can be traced to the turning on or off of refrigerators, wash-
ing machines,
electric pumps or other household
appliances.
Electrical
faults
in a neighboring
outdoor neon sign may also be to blame.
If the cause is a fault in a neon or fluorescent lighting fixture, it should be repaired. When the cause
is unknown, or in case of doubt, contact your Yamaha deaier.
4. ..... the Electone reproduces radio or TV signals.
|
If there is a powerful transmitter such as a radio station in the vicinity this can occur.
Contact your
Yamaha dealer.
5, .....rattling (sympathetic vibration) occurs.
Ail materials have critical resonance frequencies at which they vibrate.
The Electone's continuous
tones will naturally cause other objects (windows, shelves, etc.) to vibrate.
TON
(
|
x
6. .....pedal notes sound too high, upper manual notes too low.
This is especially noticeable when
comparing the Electone and piano.
Piano tones are combinations of harmonics and must interact
with their surroundings, while Electone harmonics are simpler (multiples of the fundamental tone),
requiring the Electone to be adjusted differently at the assembly stages.

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