Altec Lansing SR4021 System Specifications, Troubleshooting Symptom Possible Problem Solution

System Specifications

Altec Lansing’s superior sound comes from our proprietary technology, which utilizes custom-built, high-fidelity drivers, state-of-the-art equalization circuitry, and a harmonious mix of the following specifications:

Sound Pressure Level (SPL)	97 dB
Total Continuous Power	22 Watts RMS
• Main Speaker unit	6 Watts/channel @ 4 ohms @ 10% THD @ 150 Hz – 20 kHz
	2 Channels Loaded
• Subwoofer	10 Watts @ 8 ohms @ 10% THD @ 40 – 150 Hz
	Single Channel Loaded

Frequency Response (System)

40 Hz – 20 kHz (-10 dB)

Signal to Noise Ratio @ 1 kHz input

> 70 dB

Troubleshooting

Symptom	Possible Problem	Solution
No Power	Power cord isn’t connected to a wall outlet.	Plug the power cord into a wall outlet.
LED lit.
	Surge protector (if used) isn’t powered on.	If the power cord is plugged into a surge protector, make sure the surge
		protector is switched on.
	Wall outlet is not functioning.	Plug another device into a wall outlet (same outlet) to confirm the outlet
		is working.
	The small speaker unit is not connected to the	Insert the DIN cable from the smaller speaker unit into the input marked
	larger subwoofer unit.	“DIN” on the back of the larger subwoofer unit.
No sound	The SIRIUS home antenna is not getting a signal.	Make sure the antenna points south outdoors or through a window.
from speakers.		Specific instructions and tips on how to improve signal reception can be
		found in your SIRIUS receiver user’s guide or by visiting SIRIUS’ website at
		www.sirius.com or www.siriuscanada.ca.
	Volume is set too low.	The VOLUME knob on the SR4021 receiver controls the master volume.
		Turn the knob clockwise to increase the volume.
	The SR receiver is not correctly seated into the	Remove SIRIUS receiver and re-seat it in the docking station.
	docking station.The SIRIUS receiver is not
	correctly seated into the docking station.
	The SIRIUS receiver is properly docked and the	Turn off the “mute” function on the SIRIUS receiver by pressing the mute
	SR4021 system’s blue LED is lit, but the SIRIUS	button on the receiver or your remote control.
	receiver is in the “mute” mode.
Sound is	Volume level on SR4021 system is set too high.	The VOLUME knob on the smaller speaker unit controls the master
distorted.		volume. Turn the knob counter-clockwise to decrease the volume.

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