Yoke Balance Point Adjustment; Fixture Angle Adjustment - ETC Source Four User Manual

Yoke Balance Point Adjustment

The yoke mounting position can be adjusted on the fixture to accommodate varying weights of
different accessories. For example, move the yoke balance point forward (toward the lens) to
balance the additional weight of a color scroller and barndoor assembly in the accessory slot.
Step 1: Loosen the nuts on both sides of the yoke assembly, being sure to steady the fixture with
the handle on the rear of the unit.
Handle
Step 2: Loosen the yoke locking knob so that the fixture moves freely.
Step 3: Slide the fixture back and forth until it is properly balanced.
Step 4: Tighten the yoke locking knob.
Step 5: Tighten the two nuts.

Fixture Angle Adjustment

The fixture can be tilted up and down to position the light where it is needed. Refer to Figure-9.
Step 1: On the side of the yoke, loosen the yoke locking knob, being sure to steady the fixture
with the handle on the rear of the unit.
Step 2: With the fixture turned on, use the handle tilt it to the desired angle.
Step 3: Tighten the yoke locking knob.
Yoke Balance Point Adjustment
Figure-9 Yoke balance and angle adjustment.
Yoke locking
knob
Locking nut
9