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Troubleshooting
Specifications
■
Powered Subwoofer (SKW-240)
Type: Bass reflex with built-in
power amplifier
Input sensitivity/impedance: 220 mV / 15 k
Ω
Maximum output power: 150 W Dynamic
Frequency response: 27 Hz–150 Hz
SN ratio: 70 dB
Cabinet capacity: 1.36 cubic feet (38.5 L)
Dimensions (W
×
H
×
D):
10-13/16"
×
20-3/8"
×
16-3/16"
(275
×
518
×
411 mm)
Weight: 30.9 lbs. (14 kg)
Drive unit: 8" (20 cm) cone woofer
Power supply: North American model:
AC 120 V, 60 Hz
Others:
AC 230–240 V, 50 Hz
Power consumption: North American model:
75 W
Others: 77 W
Other: Auto Standby function
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Front Speaker (SKF-240F)
Type: 2-way bass reflex front
speaker
Impedance: 8
Ω
Maximum input power: 100 W
Output sound pressure level:
82 dB/W/m
Frequency response: 55 Hz–35 kHz
Crossover frequency: 5 kHz
Cabinet capacity: 0.11 cubic feet (3 L)
Dimensions (W
×
H
×
D):
5-1/8"
×
19-11/16"
×
3-9/16"
(130
×
500
×
91 mm)
Weight: 5.5 lbs. (2.5 kg)
Drive unit: 3-1/8" (8 cm) cone
woofer
×
2
1" (2.5 cm) balanced-
dome tweeter
Other: Magnetic shielding
Symptom Possible cause Remedy
There’s no sound coming
from certain speakers?
The speaker cables are not connected properly. Check the speaker cables and correct as necessary.
HTP-240:
The number of speaker channels is
not set to 5ch on the DR-S2.2.
Set the number of speaker channels to 5ch.
SKS-HT240:
On the amp or receiver, the
Speaker Configuration settings for those
speakers are set to either None or No. Or, the
number of speaker channels is not set to 6ch.
Check the Speaker Configuration settings and
make sure that the speakers are set to something
other than None or No. Or set the number of
speaker channels to 6ch.
The subwoofer does not
turn on?
The power plug is not fully inserted into the
wall outlet.
Insert the power plug fully into the wall outlet.
The subwoofer produces
no sound?
The OUTPUT LEVEL control is set to mini-
mum.
Turn up the OUTPUT LEVEL control.
The RCA cable is not properly connected to
the subwoofer’s LINE INPUT.
Make sure that the RCA cable is properly con-
nected to the subwoofer’s LINE INPUT.
The level of the input signal was too low and
the subwoofer entered Standby mode.
Slightly increase the subwoofer preout output level
on your amp.
HTP-240:
On the DR-S2.2 Receiver, the sub-
woofer mode is set to SW Off.
Set the subwoofer mode to something other than
SW Off.
SKS-HT240:
On your amp or receiver, the
speaker setting is set to Subwoofer No, or the
subwoofer mode is set to Subwoofer Off.
Check the settings on your amp or receiver.
The subwoofer produces
hardly any sound?
The source material contain little or no bass
content.
Choose source material with more bass content.
A humming sound can be
heard from the sub-
woofer?
The RCA cable is not properly connected to
the subwoofer’s LINE INPUT.
Make sure that the RCA cable is properly con-
nected to the subwoofer’s LINE INPUT.
External interference from a TV or other elec-
tronic device is being picked up.
Move the subwoofer and RCA cable away from the
interference source. Make sure your audio system
is grounded properly.