6
Additional information
Troubleshooting
If you think something is wrong with the speakers, check the information below and refer to the
[FAQ]
for the DM-40D-BT at the URL
below.
•
Inspect devices connected with the speakers.
•
The speakers may restore proper operation after you turn it off and on.
If the problems continue, read the “Precautions for Use” and consult an authorized service company or your dealer.
Problem
Check
Measures
The power is not turned on.
Is the power cord properly connected?
Plug in the power cord to an AC outlet.
No sound is output or the sound is low.
Is the connected device set properly?
Set the devices external input and volume properly.
Is the volume set to the proper position?
Turn the [LEVEL] knob on the front panel of the speaker clockwise to
increase the volume.
Is the power turned on?
Turn on the [POWER] switch on the rear panel of the speaker.
The POWER indicator (white) does not light. Is the power turned on?
Turn on the [POWER] switch on the rear panel of the speaker.
Are the speakers in Standby mode?
Turn off the [POWER] switch on the rear panel of the speaker and then
turn it back on after a few seconds. Or press the pairing button on the
front panel of the speaker.
The speakers wouldn't recover (power-on)
from Standby mode.
Is the input signal level low?
Increase the input signal level.
The sound is affected by distortion.
Is the volume set to the proper position?
Turn the [LEVEL] knob on the front panel of the speaker counterclockwise
to reduce the volume.
Is the level for input from the connected device
appropriate?
Adjust the output level of the connected device properly.
Unwanted noise is heard. (It continues
sounding loud.)
Is the volume set to the proper position?
Turn the [LEVEL] knob on the front panel of the speaker
counterclockwise to reduce the volume.
The sound is only output from the left
speaker.
Is the speaker cord connected properly?
Connect the left and right speakers properly.
The power turns off (Standby mode)
automatically.
Did a state of no sound continue for approximately 10
hours or longer?
Input signals from the RCA or stereo mini plug input terminal.
Or press the pairing button on the front panel of the speaker.
Is the input signal level low?
Increase the input signal level.
When connected via the RCA or STEREO MINI input terminals
Problem
Check
Measures
No sound is output from the connected
device or the sound is low.
Are the connection cables properly connected?
Connect the connection cables properly.
Are the terminals and plugs dirty?
Clean the terminals and plugs before making connections.
The sound is only output from one speaker.
Is the device connected properly?
Connect the device to both the left and right input terminals.
The sound is interrupted or unwanted noise
can be heard.
Is there a contact problem with the connection
cables?
Reconnect the connection cables.
