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Troubleshooting guide
Cause
• The power plug is not fully inserted.
• The OUTPUT LEVEL knob is set to the
MIN level.
• Pin-connector cable(s) are disconnected
at the LINE INPUT jacks.
• Speaker cables are not properly con-
nected to the SPEAKER LEVEL INPUT
terminals.
• The speaker setting at the amplifier (or
receiver) is set to “Subwoofer No.”
• The input signal is so small that the unit
entered the standby state.
• Speaker cables are connected to the
SPEAKER LEVEL INPUT terminals
with reversed phase.
• Playing source does not include
superbass sound.
•Pin-connector cable is not inserted
completely.
• External leakage flux (induction noise
by TV etc.) occurs.
Symptom
The unit does not turn on.
No sound output
Small sound output
Hum noise
Remedy
• Insert the power plug fully into the power
outlet.
• Set the OUTPUT LEVEL knob properly.
• Connect cable(s) to the LINE INPUT jacks.
• Connect the speaker cables properly.
• Check the settings at the amplifier (or receiver).
• Slightly increase the output level at the ampli-
fier (or receiver).
• Set the AUTO STANDBY switch to OFF.
• Connect the speaker cables properly.
• Play sources with superbass sound.
• Fully insert the pin-connector cable.
• Separate from the noise source and connect.
Precaution on use
■ Placement
• The enclosure is made of wood and therefore sensitive to
extreme temperatures and humidity. Avoid placing the unit
in locations subjected to direct sunlight or in humid places
such as near an air conditioner, bathroom or kitchen, as
well as in locations subjected to soot or steam such as near
a kitchen table and humidifier. Otherwise, damage may
occur.
• Keep water or other liquids away from the unit. If water is
spilled into the unit, not only the unit but also the
connected amplifier (receiver) may be damaged.
•Place the unit on a level and rigid surface free from
vibration.
• Slip-proof spacers are provided with the SL-105. If the SL-
105 is to be placed on flooring or other similar surfaces,
attach these spacers to the bottom surface at the corners.
This will not only prevent scratching, but also provide a
stable footing. However, note that depending on the
surface, the spacers may leave markings.
• This unit is designed to be used in the upright vertical
position only. Do not use it in the horizontal or tilted
position.
• If the unit is used near a turntable or CD player, howling or
skipping of sound may occur. To prevent this, move the
unit away from the turntable or CD player or otherwise
lower the unit’s output level.
• This unit can handle the specified input power when it is
used for ordinary music reproduction. If the following
abnormal signals are fed to the unit, however, an
overcurrent may flow in the internal circuits, causing
burning or breakage of the wires even if the input power is
below the specified rating.
1. Special test signals produced by audio checking CD, etc.
2. Sound produced when connecting or disconnecting
audio connection cables.
(Always turn off the amplifier’s power before
connecting or disconnecting cables.)
3. Howling when a microphone is used.
4. Abnormal sound produced when bass-range signals are
excessively boosted by using the amplifier’s (receiver’s)
tone controls, a graphic equalizer, etc., or when a source
whose bass range is abnormally boosted is being played.
This state called “rattling” occurs when the signal is
beyond the driver’s reproduction capacity. Although it is
not a sign of damage, decrease the speaker output level
to prevent damage to the driver.
Cause
• Speaker cables are not properly con-
nected.
Symptom
No sound output
Remedy
• Connect the speaker cables properly.
■ Subwoofer SL-105
■ Satellite speaker D-L1