Owner's Manual
Page 85
... pressing the button to extend the control, pulling it out as far as possible and then turning it to the left (more sound from the rear speakers) or to switch this knob. A - Press the ASC button (HU-611) or the PTY button (HU-801) for several seconds. Press the button back in... when you have made the adjustment. Balance right/left Adjust left/right speaker balance by pressing the button to extend the control and turning it to the left (more sound from the left side of the button to...
... pressing the button to extend the control, pulling it out as far as possible and then turning it to the left (more sound from the rear speakers) or to switch this knob. A - Press the ASC button (HU-611) or the PTY button (HU-801) for several seconds. Press the button back in... when you have made the adjustment. Balance right/left Adjust left/right speaker balance by pressing the button to extend the control and turning it to the left (more sound from the left side of the button to...