Specifications; Troubleshooting Tips; Power Requirements - Altec Lansing Select 641 User Manual

HOW TO ENHANCE PRESENTATIONS WITH DIALOGUE
The 641 output jack (CONNECTIONS, Stereo and Stereo x2 Setup, step 4) is
connected to a computer sound card. A CD player or other audio source can
be plugged into the unused Input. Mixing of the computer audio output with
another audio source can be accomplished by using the volume control or On/Off
switch on the second audio source. A typical example may be as follows:
A lecturer may want to interject dialogue into a multimedia presentation.
If the lecturer has a wireless FM microphone system the output of the
microphone receiver can be connected to the unused input on the 641.
When the lecturer wishes to make a comment, he either turns on the
microphone switch to speak or he can raise or lower the microphone
volume control to mix his voice with the computer audio program. Any
other audio device can operate in the same manner.

SPECIFICATIONS

TOTAL SYSTEM POWER: 400 Watts; 200 RMS
Frequency Response: 27 Hz - 20 kHz
Signal to Noise Ratio @ 1 kHz input: > 70 dB
Crossover Frequency: 100 Hz
System THD (distortion): < 0.3 % THD @ -10 dB full
scale input voltage
Input Impedance: 10k ohms
SATELLITE AMPLIFIED SPEAKERS
Speaker Drivers (per Satellite): 1" tweeter (24 mm); 3"
mid-range (75 mm)

TROUBLESHOOTING TIPS

Find more troubleshooting tips in the FAQs located in the Customer
Support area of our web site: www.alteclansing.com.com.
Q. When connected to my computer sound card, should I use the
Windows volume control to adjust the volume of my speakers?
A. No. Adjust the Windows controls to about center as a starting point
and then use the speaker controller to adjust volume control. If the
volume is turned too high on the sound card, it can distort the sound.
Q. One and sometimes both of my speakers do not work.
A. Check the input cable from speaker to the audio source and make sure
that it is connected to the line-out jack, which is the un-amplified source.
Make sure all the cables are plugged in correctly and have a good
connection. Still not working? Then try unplugging the cable from the back
of the computer, and insert the stereo plug into the headphone jack of an
alternate source (e.g., Walkman, Discman or FM radio) and play music. If the
speakers work, you may need to adjust your volume and balance controls in
your audio source, or Windows, if connected to your computer's sound card.
Q. My speakers give off a crackling sound (or static, or other noise).
What could be wrong?
A. Check all cables and make sure that they are connected to line-out or
audio-out jack on your sound card or other audio source, and NOT speaker-
out. If your audio source is your computer, check the volume control in
Windows: make sure that it is not set more than halfway. Setting this level
too high can cause sound distortion. If this does not stop the noise, unplug
the cable from the audio source and use an alternate source (e.g., Walkman,
Discman or FM radio) by plugging the stereo cable into the headphone jack.
If the noise goes away, you may have a problem with your audio source.
Q. What can cause radio feedback?
A. If you are living near a radio tower you could have interference caused
by radio frequency. Try moving your speakers to see if the interference
goes away; if not, you may be able to purchase a stereo cable from your
local retailer that has a higher percentage of shielding.
Q. Can I hook my speakers to my TV or Stereo?
A. Yes, as long as your TV or Stereo has an unamplified source which is line-
5
NOTE: Microphone location in relation to the speakers is important. Position
the microphone so that the speakers are located between the microphone and
the audience, or so that the microphone is behind the speakers. If the
microphone is placed in front of the speakers, feedback will result.
You may elect to hook up your Stereo system or Stereo TV to the auxiliary
input so that your speakers may be used for these devices when your
primary audio device is not in use. You can also connect your modem
audio-out to the second input.
OTHER USES FOR THE AUX (AUXILIARY) INPUT
You may elect to hook up your Stereo system or Stereo TV to the Aux
(Auxiliary) Input so that your speakers may be used for these devices when
your primary audio device is not in use. You can also connect your modem
audio-out to the second Input.
SUBWOOFER
Drivers: Two 6.5" (165 mm) Long Throw woofers

POWER REQUIREMENTS

USA/Canada/and applicable 120v 60Hz AC
Latin American countries:
Europe/United Kingdom; 230v 50Hz AC
applicable Asian countries;
Argentina, Chile and Uruguay:
ETL / cETL / CE / NOM / IRAM Approved
out (check your TV or Stereo owners manual). These speakers may be used
with any audio device that has a stereo headphone jack. You may also need
a cable that has RCA jacks on one end and a 1/8 inch stereo connector at
the other end (these may be purchased at most local electronics stores).
Q. I have very little bass coming from my Subwoofer. How do I increase
the bass output?
A. Adjust the BASS control through your audio sound source (computer
sound card control, CD player control, etc.). Check to make sure that all of
your cables are hooked up correctly and are making a good connection.
Q. I have a low hum coming from my Subwoofer. Is this normal?
A. Yes. The AC in your house is at 60 cycles per second, which is within
the audio frequency of your subwoofer. Some low hum is natural and can
be detected when your speaker system is powered on without source
audio playing, or when volume is set at an extremely low level.
Q. I have a loud hum coming from my Subwoofer. What should I do?
A. Move the power cord from the power surge protector (if applicable)
and plug directly into an AC wall outlet. Move your cables and check to
see that they are making a good connection. If you disconnect your
stereo cable from the audio source and the loud hum goes away, then
you may need to adjust the volume control in your audio source as you
may be overdriving the volume settings on your speaker system. If you
are using your 641 speakers with your computer system, just click on the
speaker icon located next to the digital clock to the lower right of your
Windows 9X or 2000 screen and adjust the volume.
Q. When I put my Subwoofer on my desk my monitor distorts. Why?
A. The Subwoofer is not magnetically shielded, and this can cause
distortion if it is less than 3 feet from your monitor.
Q. The DIN connector from the controller has multiple pins on one end,
and when trying to attach this cable I noticed that some of the pins are
bent, so I am not able to insert the cable into Subwoofer. What should I do?
A. Try to gently straighten the pins with tweezers or very small pliers. If
this does not work, then contact the Altec Lansing Consumer Support
Department for further instructions.
TROUBLESHOOTING TIPS
SYMPTOM POSSIBLE PROBLEM
All LEDs Power is not turned on
are unlit
AC cord is not connected to wall outlet
Surge suppressor (if used) is not powered on
System Controller is not connected to the Subwoofer
Wall outlet not functioning
No sound from Power is not turned on
any speakers
Volume setting is too low
Audio cable is not connected to audio source
Audio cable connected to wrong output on audio source
Problem with audio source device
No sound from Subwoofer volume is too low
Subwoofer
Sound source has very little low frequency content
Fuse is blown
Controller does DIN connector not inserted in Subwoofer jack
not work
No sound from Unit is not in Stereo x2 or Gaming mode
Rear satellites
Rear level is too low
Set Rear level to default position
Sound is Volume level set too high
distorted
Windows volume control is set too high
Sound source is distorted
Not enough Treble setting is too low
treble
Set Rear level to default position
Treble setting is too high
Too much treble
Set Rear level to default position
Too much bass Bass setting is too high
or Subwoofer is
distorted Set Rear level to default position
FOR CUSTOMER SERVICE:
Call the Altec Lansing Customer Support Team at 1-800-258-3288
Support Hours: Monday to Friday: 8:00 a.m. to 12 midnight
Saturday & Sunday: 9:00 a.m. to 5:00 p.m.
SOLUTION
Press Power On button on the System Controller.
Check to see if the LED is illuminated on the rear of the Subwoofer. If not,
connect AC power.
If the AC line cord is plugged into a surge suppressor, make sure the surge
suppressor is switched on.
Connect System Controller to Subwoofer.
Plug another device into the wall outlet (same jack) to insure it is
functioning.
Verify the AC line cord from the back of the Subwoofer is plugged into the
wall outlet.
Verify the Power On switch has been pressed (LED is illuminated).
Turn the rotary knob to the right to raise the system Master Volume.
Check volume level on computer sound card or alternate audio source
device and set at mid level.
Connect audio cable from audio source, check plug connections on both
subwoofer and source. Make sure these signal cables are inserted firmly
into the correct jacks.
Make sure that the lime green 3.5 mm stereo jack is connected to the line-
out jack of the audio source; make sure it is fully inserted.
Test the speakers on another audio device. Remove the audio cable from
the audio source device and connect it to the line-out on another audio
device or the headphone jack of another audio source device.
If your model has a Subwoofer Volume control, try adjusting it to increase
the Subwoofer volume. If your model offers a Bass Selector function on the
System Controller, adjust Select Bass function and raise volume level.
If listening to .WAV files over a computer sound card connection, try
listening to a CD on your computer CD or DVD player. .WAV files often
have little low frequency content. Try a music signal with more bass.
Power off the Altec Lansing speaker system. Unplug the Subwoofer from the
AC outlet. Check to see if the fuse in the Subwoofer is blown. To do this,
unscrew the black cap at the rear of the Subwoofer and visually check to see
if the filament is in place. If it is not in place, then the fuse is blown. You'll
need to replace it with a T2A (2 amp @ 250 Volt) "SLO BLO" fuse. You can
purchase this fuse at most local electronics stores.
Verify the gray DIN connector is firmly inserted into the DIN jack on the
Subwoofer. Refer to the "Connections" section of your User's Guide for the
correct position of the arrow on the DIN plug. It is important to insure the
pins are aligned from plug to jack.
Press the Mode button on the System Controller to select either Stereo x2
or gaming Mode.
See User's Guide: "Rear Volume Level Adjustments". Increase the Rear
Volume level.
See User's Guide: "Rear Volume Level Adjustments".
Decrease the speaker system's master volume level.
Adjust the Windows volume and balance controls to the center as a starting
point, then use the speaker controller to adjust the volume.
.WAV files are often of poor quality. So distortion and noise are easily noticed
with high-powered speakers. Try a different sound source like a music CD.
Push the Treble button on the System Controller and increase level.
See User's Guide: "Rear Volume Level Adjustments".
Push the Treble button on the System Controller and decrease the level.
See User's Guide: "Rear Volume Level Adjustments"
Push the Bass button on the System Controller and decrease the level.
See User's Guide: "Rear Volume Level Adjustments".
United States – Eastern Standard Time
Email: csupport@alteclansing.com
For up to date information, please check our website at
www.alteclansing.com
6