these are switching arrangements
SWITCHING
Knobs 1-2 are volume controls and passive/active switch:
Knob 1: Neck pickup volume.
Down = Active, Up = Passive If this knob is up and Knob 2 is down only the neck pickup (passive) is heard
Knob 2: Bridge pickup volume.
Down = Active, Up = Passive
If this knob is up and Knob 1 is down only the bridge pickup (passive) is heard.
If both knob 1 and knob 2 are in the up position, both pickups (passive) are heard.
Knobs 3-5 are a 3-band EQ control:
Knob 3: Bass EQ. Functions with pickups in active mode.
Knob 4: Mid EQ. Functions with pickups in active mode.
Knob 5: Treble EQ. Functions with pickups in active mode.
The bass will function passively without batteries as well.