User Manual

2 The Retrofit 13
Change out the Beacon PCB
Step 1: Remove the top four dimmer modules from the rack to allow access to the PCB.
Step 2: Remove the two screws that hold the beacon PCB in the face of the rack.
Step 3: Pull the PCB down from inside the rack
case. (The wire harness will only allow a
few inches of movement).
Step 4: Note the orientation of the connector and
unplug the wire harness from the old
beacon PCB.
Step 5: Attach the wire harness to the new
beacon PCB making sure the connector
is in the same orientation as before.
Step 6: Install the new beacon PCB (ETC Part #
7141B5109) with two screws (ETC Part #
HW222) (two new screws of the same type are provided in case the old ones
were damaged during the removal process).
Finishing Touches
Step 1: Carefully remove old Sensor+ label from the front of the door and discard.
Step 2: Clean the door surface to remove any dirt or old adhesive.
Step 3: Apply the new Sensor3 label to the
front of the door. Line up the label
around the opening for the acrylic in the
door and be sure the label is straight.
Press and wipe with a piece of cloth or
paper towel to make sure the label is
flat & smooth and properly adhered to
the rack door.
Repeat the above steps for the remainder of connected racks.
Verify the Retrofit
Step 1: Put the dimmer modules back in the rack in the correct/original order.
Step 2: Put the CEM3 in the rack.
Step 3: Power up the rack. Before removing dimmer or control modules for service,
de-energise main feed to dimmer rack and follow appropriate safety
procedures for your region.
Step 4: Check that the CEM3 powers up, the rack fan turns on, and the beacon is
illuminated. The only rack errors should be a lack of DMX on the ports if the DMX
Note:
Although the colour of the beacon is unchanged, the voltage is different. The part
number of the new PCB is printed on the circuit board (7141B5109).
Note:
Be sure to use a properly sized screw driver (#2 Phillips) and a good amount of
force as these screws are kept in place with a thread locker. Don’t worry about
damaging the existing screws (replacements are provided) or shearing off the
heads of the screws (the screw shanks are threaded into the PCB’s standoffs).
New blue-LED
beacon PCB