Troubleshooting the AR S112PS Powered Subwoofer

Troubleshooting the Acoustic Research S112PS Subwoofer
Why does the subwoofer POWER indicator LED light does not light Acoustic Research S112PS ?	Check that the Subwoofer's power switch is in the auto-on position. If the power switch is in the AUTO ON position check the AC outlet the subwoofer is plugged into to be sure that it is live. Use a lamp or tester to test the outlet. If the AC outlet is live, either the power cord or the subwoofer has a problem. Unplug the power cord from the Ac outlet and check the fuse by unscrewing the center piece from the holder. If it is blown replace the fuse only with a fuse of the same type and rating. If this doesn't help the unit needs service. There are no user serviceable parts inside.
How do I connect the Acoustic Research S112PS Powered Subwoofer to the stereo receiver?	Read Answer 7969 here
What do I do if the power is on, but the Acoustic Research S112PS subwoofer has stopped working?	Be sure there is sound from the front speakers and that the receiver is hooked up correctly. Check the subwoofer's level control. If it is all the way counterclockwise there may be no sound. The subwoofer only reproduces deep base sound. If the program being played has no deep bass there will be no sound from the subwoofer. Play a program with plenty of bass to test. If everything else checks out you need to have the unit repaired. There are no user serviceable parts inside.
Where do I find specifications for the Acoustic Research S112PS powered Subwoofer?	Weight 44 lbs Size 16"x16"x15 3/4" (HxWxD) Amplification: Power Output 120 watts RMS into 4 ohms with protective limiter enabled. 480 watts of dynamic power output. More in the User's Manual (will load in a new window)
What do I do if there is no sound from the front speakers while using the Acoustic Research S112PS subwoofer?	Be sure the receiver and subwoofer power switches are in the ON position Check the receiver's volume control setting. If it is all the way down there will not be any sound Check to see that the receiver's input selector is set to an active source of audio signals and that a tape monitoring loop is not engaged. Be sure that the receiver's speaker selector switch is turned on to the terminal (A or B, 1 or 2) that you have your front speakers connected to. If the receiver has a headphone jack, you can use the headphones to check the receiver for output. Check the wires and connections from the receiver's front speaker output terminals to the Subwoofer's SPEAKER-IN terminals. Try removing the subwoofer from the system and leaving your front speakers connected to the Receiver. If there still is no sound the receiver needs service.