11-22
Cisco TelePresence System 3000
OL-14521-01
Chapter 11 Field-Replaceable Unit Guide
Replacing the Audio/Video Extension Unit—Part Number CTS-AV-EXP=
Replacing a Light Fixture
Step 1 Power off the lights by turning the power switch to the Off position to the power unit that controls your
lights.
Note Depending on your installation, your lights could be controlled by either a PDU or an Auxiliary Control
Unit. See the “Routing Power and Signal Cables” section on page 8-1 for the for the location of he PDU.
The Auxiliary Control Unit is located behind the center display structure.
Step 2 Unplug the light fixture from the PDU or Auxiliary Control Unit.
Step 3 For the right and left vertical light fixtures, follow these steps.
a. Remove the screws from the light fixture holding bracket. The bracket is located in the middle of
the fixture. Retain the screws.
b. Lift the light fixture up and out of the lower cup bracket.
Step 4 For the horizontal light fixtures, follow these steps.
a. Using the step stool or a small step ladder, reach over the display and remove the two screws from
the light fixture holding bracket. The bracket is located in the middle of the fixture.
b. Lift the light fixture up and out, being careful the cable does not mar the surface of the display.
Step 5 Place the replacement light fixture in the bracket and secure with the screws.
See Chapter 4, “Building the Lighting Assembly” for more information.
Step 6 Plug the light fixture into the PDU or Auxiliary Control Unit.
Step 7 Turn the power switch on the PDU or Auxiliary Control Unit to the On position.
Replacing the Audio/Video Extension Unit—Part Number
CTS-AV-EXP=
To remove and replace the audio/video extension unit for the Cisco TelePresence 3000, you need the
following tools and equipment:
• Medium Phillips head screwdriver (for attaching the unit to its bracket)
• Large Phillips head screwdriver (for attaching the unit and bracket to the display structure)
• Masking tape
Remove and replace the audio/video extension unit by performing the following procedure:
Step 1 Power off the system by completing turning off the following units:
• The two left PDUs on the left accessory cabinet
• The single right PDU on the right accessory cabinet
• The auxiliary control unit on the center display structure
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