Altec Lansing Troubleshoot Subwoofer and VS4221 Speaker Problems

SYMPTOM	POSSIBLE PROBLEM	SOLUTION
Crackling sound	Bad connection.	Check all cables. Make sure they are connected to “line-out” or “audio-out”
from speakers.		jack on your sound card or other audio source — NOT “speaker-out.”
	Volume level in computer operating system is set	Check the computer operating system volume level and decrease it if necessary.
	too high.
	A problem with your audio source device.	Unplug the stereo cable from the audio source. Then plug it into the
		headphone jack of an alternate audio source (e.g., Walkman, Discman or
		FM radio).
Sound is	Volume level set too high.	Press the “–” button on the side of the right satellite to decrease the volume.
distorted.
	Computer operating system volume level is set	Adjust the computer operating system volume and balance levels to the
	too high.	center as a starting point, then adjust the level on the speaker using the
		volume control.
	Sound source is distorted.	WAV files are often of poor quality. So distortion and noise are easily noticed
		with high-powered speakers. Try a different sound source such as a music CD.
Radio	Too close to a radio tower.	Move your speakers until the interference goes away.
interference.
No sound	Bad connection.	Check to make sure that all cables are connected properly and are making a
from subwoofer.		clear connection.
	Sound source has little low-frequency content.	Many .WAV and .MID files often have little low-frequency content and sound
		flat when you listen to them on a computer. Try a song with more bass —
		something from your CD collection.
Low hum	The AC in your house is at 60 cycles per second, which is	Some low hum may be detected when your speaker system is powered on
from subwoofer.	within the audio frequency of the subwoofer.	without an audio source playing, or when the volume is set at an extremely
		low level.
Loud hum	Bad connection.	Unplug the AC power cord from the surge protector (if used), and plug directly
from subwoofer.		into an AC wall outlet.
		Move your cables. Check to ensure they are making a clear connection.
	Bass level set too high.	Press the “–” button marked with the word “bass” on the wireless remote to
		decrease the bass.
	Volume or bass level on your audio source device is set	Disconnect your 3.5mm stereo cable from the audio source. If the loud hum
	too high.	goes away, lower the volume on the audio source.
		Lower the volume or bass level on your computer, portable device, etc.
Distorted monitor.	Subwoofer too close to monitor.	Because the subwoofer is not magnetically shielded, it can cause distortion if
		it’s too close to your monitor. Move the subwoofer so it’s at least 2 feet from
		your monitor.

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