11-8
Cisco TelePresence System 3000
OL-14521-01
Chapter 11 Field-Replaceable Unit Guide
Replacing a Speaker—Part Number CTS-LDSPKR
Replacing a Speaker—Part Number CTS-LDSPKR
Required Information, Tools, and Equipment
To remove and replace a speaker for the Cisco TelePresence 3000, you need the following information,
tools, and equipment:
• The Cisco TelePresence System Administrator's Guide for your software release
• Power screwdriver with 2.5, 3, and 6 mm (standard or round) Allen bits, or standard 2.5, 3, and 6 mm
Allen wrenches
Tip A round-head Allen bit allows the bit to work at an angle instead of only straight out, which is
helpful in tight spots.
• Manual screwdrivers, Phillips and flat head types
• Metric wrenches, 10 to 15 mm
• 9/64-inch Allen wrench (supplied with speakers)
• Laptop computer attached to network (for troubleshooting or reference)
Powering Off the System
Power off the system by turning the power switches to the Off position on the two left PDUs, single right
PDU and, if present, the PDU or auxiliary control unit behind the center display assembly.
Caution Make sure all system power is turned off before beginning this disassembly.

Removing and Replacing a Speaker

Note Make sure to retain all screws, connectors, and other parts during the disassembly.
Caution Take care not to mar the surface nor introduce smudges or dirt to the surface of the projector screen.
Step 1 Remove the Projector screen by performing one of the following actions:
• If your projector screen is slightly recessed and uses black side trims, complete the following steps:
a. Remove the side trims from the edges of the display.
Be careful not to mar the screen when you perform this step.
b. Use an open-ended wrench to loosen the feet on the bottom of the screen, and lower the screen.