9-18
Cisco TelePresence System 3000
OL-14521-01
Chapter 9 First-Time Setup
Setting Up CTS Components
Step 4 Calibrate the microphones by clicking the Microphone Calibration button.
Note The room must be completely quiet to properly calibrate microphones and ensure that camera switching
is properly enabled.
Tip Before clicking the Microphone Calibration button, you can leave the room and close the door to insure
complete silence in the room.
Step 5 Click Stop when setup is complete.
Troubleshooting Microphones
Use Table 9-4 to troubleshoot problems with microphones.
Ta b l e 9-4 Troubleshooting Chart for Microphone Problems
Problem Possible Cause Possible Solution
Sound is muffled. Something near or on the
microphone is distorting the
sound.
Move objects away from the
microphone.
Sound registers at the wrong
microphone.
Microphone cable is not
connected to its corresponding
codec.
Check that the cable from the
microphone is plugged into the
correct receptor on the codec.
Plug all microphones into the
primary codec.
No sound registers. Microphone cable is not
connected or is only partially
connected.
Check that the system is plugged
in and power is on.
Check that the microphone plug
is firmly seated in the correct
connector on the primary codec.
Check that the mute light on each
microphone is lit. An unlit light
indicates that the microphone is
not plugged in.
Lightly tap the microphone to
see if sound registers.
Contact Cisco technical support
if you are certain that the cabling
is correct and power is applied to
the system, but no sound
registers on the microphone.
Microphone icon with red pipe
displays.
Microphone is not connected. Check that the microphone is
properly plugged in.
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