Sony PCV-RZ40C - Manual (Page 13)

About the Sub-Woofer
Certain VAIO ® computers are supplied with a sub-woofer unit to enhance your system's sound capability.
Sub- woofer unit
1 Port
The port extends the low frequency response to extend the volume output of the sub-woofer unit.
2 Power knob/volume control
Rotate the knob clockwise to turn on the sub-woofer unit. Control the volume by rotating the knob until the desired volume
is reached. Rotate the knob counter-clockwise to turn off the sub-woofer unit.
3 Power indicator
Light is green while the power is on.
4 Speaker jack
Connection for the speaker cable (RCA plug).
5 Sub-woofer unit cable
Connects the sub-woofer unit to the computer's Line Out jack.
6 AC power cord
Connects the sub-woofer unit to a grounded AC wall outlet or power strip.
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