ETC Unison DRd Dimming Engine Replacement - Manual (Page 2)

E T C S e t u p G u i d e
DRd Dimming Engine Replacement
DRd Dimming Engine Setup Guide Page 2 of 3 Electronic Theatre Controls, Inc.
Replacing the DRd Dimming Engine
Step 5
Step 2a
Step 2b
Step 2c
The rack door has been
removed from this graphic
for clarity of this procedure.
Step 1: Replace the dimming engine.
a: Align the panel perpendicular to the enclosure.
b: Align the guide pins into the top of the guide slots.
c: Slide the panel down the guided slots.
Step 2: Reconnect the three cables to the panel:
a: For the cable bundle on the left side, push the cable into the connector. The black wire will
be closest to you and the blue will be farthest away. The first and sixth pins are flat on one
side to prevent the cable from being connected the wrong way.
b: For the ribbon cable on the right rear side, gently push the cable into the connector. The
tabs on the sides of the connector will close when the cable is properly connected. The
ribbon cable has a small tab to prevent it from being connected the wrong way. The tab will
be toward the rear of the enclosure.
c: For the two-wire cable on the right side, gently push the connector straight down. The black
wire will be toward the right side of the rack, and the red will be toward the left.
d: A fan speed switch is located above the 2-wire harness (fan harness) on the dimming
engine. Ensure that the switch is in the correct position for the installation type.
Step 3: Tilt the dimming engine toward the rack enclosure.
Step 4: Gently push the dimming engine up.
Step 5: Tighten the two captured screws to secure the panel to the rack.
Step 6: Replace the first dimmer module.
Step 7: Reapply power to the enclosure.
semi-recessed
DRd installation
standard DRd
installation • For a semi-recessed DRd installation, set the switch to the position
that is away from the 2-wire harness.
• For a standard DRd installation, set the switch closest to the 2-wire
harness.