Cisco Systems 3000 manual See , Building the Lighting Assembly for more information, 11-15

Chapter 11 Field-Replaceable Unit Guide

Replacing the Audio/Video Extension Unit—Part Number CTS-AV-EXP

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

Caution Make sure all system power is turned off before beginning this disassembly.

Step 2 Remove the cables from the audio/video extension unit. Label each cable with masking tape for identification as it is removed.

See Chapter 8, “Routing Power and Signal Cables” for additional information.

Step 3 Use the screwdriver to remove the two screws that attach the extension unit and remove the unit from the display structure.

Step 4 Attach the new audio/video extension unit to its bracket, then attach the unit and bracket to the display structure. See Figure 7-15and Figure 7-16for more information.

Step 5 Attach the cables to the new extension unit using the masking tape labels as a guide.

	Cisco TelePresence System 3000
OL-14521-01		11-15