Altec Lansing CS21 Mode D'emploi page 5

System Specifications
Sound Pressure Level (SPL):
Total Continuous Power:
Front Speakers:
Subwoofer:
System Response:
Signal to Noise Ratio
@ 1 kHz input:
Drivers (per Satellite):
Subwoofer Driver:
Troubleshooting
Symptom Possible Problem
Blue LED's are Power isn't turned on.
not lit.
AC cord isn't connected to the wall outlet.
Surge protector (if used) isn't powered on.
Wall outlet not functioning.
No sound from Power isn't turned on.
one or more
speakers.
Volume is set too low.
Audio cable isn't connected to audio source.
Audio cable is connected to wrong output on
audio source.
Problem with audio source.
Crackling sound Bad connection.
from speakers.
PC volume level is set too high.
A problem with your audio source.
Sound is Volume level set too high.
distorted.
PC volume level is set too high.
Sound source is distorted.
Radio Too close to a radio tower.
interference.
108 dB
110 Watts RMS
30 Watts/channel @ 8 ohms
@ 10% THD @ 140 – 20000 Hz
2 Channels Loaded
50 Watts @ 4 ohms
@ 10% THD @ 27 – 113 Hz
Single Channel Loaded
35 Hz – 18 kHz (-10dB)
> 86 dB
1" tweeter and
3" full-range driver
One 6.5" long-throw woofer
POWER REQUIREMENTS
USA, Canada and applicable
Latin American countries:
Europe, United Kingdom,
applicable Asian countries,
Argentina, Chile and Uruguay:
ETL/cETL/CE/NOM/IRAM Approved
Solution
Press Power button on right satellite.
Verify the subwoofer's AC power cord is plugged into the wall outlet.
If the subwoofer's AC power cord is plugged into a surge protector, make sure
the surge protector is switched on.
Plug another device into the wall outlet (same jack) to confirm the outlet
is working.
Verify the subwoofer's AC power cord is plugged into the wall outlet.
Verify the Power button has been pressed by confirming the blue LED's
are illuminated.
Press the + button on the top of the right satellite to raise the volume.
Check volume level on your PC or alternate audio source, and set at mid-level.
Make sure the lime green 3.5mm audio cable is connected and fully inserted into
your PC sound output jack or other audio source.
Make sure the lime green 3.5mm audio cable is connected and fully inserted into
your PC sound output jack or other audio source.
Test the speakers on another audio source by removing the lime green 3.5mm
audio cable from the audio source and connecting it to the line out or
headphone jack of a different audio source (e.g., Walkman, Discman or
FM radio).
Make sure the lime green 3.5mm audio cable is properly connected to the
PC sound output jack (NOT "speaker-out.") or other audio source.
Check the PC output volume level and set at mid-level.
Test the speakers on another audio source by removing the lime green 3.5mm
audio cable from the audio source and connecting it to the line out or
headphone jack of a different audio source (e.g., Walkman, Discman or
FM radio).
Press the – button on the top of the right satellite to lower the volume.
Check the PC output volume level and set at mid-level.
Digital audio files (.MP3, .WAV, .MID) are often of poor quality; distortion and
noise are easily noticed with high-powered speakers. Try a different audio source
such as a music CD.
Move your speakers to see if the interference goes away. If not, you may be able
to purchase a shielded stereo cable from your local electronics store.
3
120 V AC @ 60 Hz
230 V AC @ 50 Hz