Bose Companion 3 Series II Service Manual page 25

Test Procedures
6. Control Pod Functional Test
6.1 With the system completely set up, turn on the system using the power switch located on the bass
module.
6.2 Set the volume knob on the control pod to maximum (fully clockwise), and set the bass control to
the center detent (flat) position.
6.3 Touch the center of the control pod . Verify that the LED turns from green to orange and orange to
green with each touch.
6.4 Verify that the sound is muted and un-muted when the LED changes color and that there is no
audible pop when switching from mute to un-mute.
6.5 Rotate the control pod ring, verify that the volume increases and decreases and that the ring
moves smoothly.
6.6 Replace any control pod that is defective.
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