2820A-02 & 2820A-03 CHAMBER COMMUNICATOR USER MANUAL
2820A-02-UM
REV 1.0
17
6 MAINTENANCE
The following section describes the procedures for checking the operation of your 2820A-02 &
2820A-03 chamber communicators, general maintenance procedures, and how to troubleshoot
common problems.
6.1
CHAMBER COMMUNICATOR CHECK PROCEDURES
The following are a series of step-by-step procedures to perform a functional check of your
communicator. Use the appropriate procedure for the chamber communicator wired either 2-
Wire or Full Duplex (4-Wire) mode.
6.1.1
FULL DUPLEX (4-Wire) CHECK
This procedure checks the communicator functions in the Full Duplex (4-Wire)
mode.
1. Set all volume controls to the mid-scale (halfway) position.
2. Turn the SPEAKER SWITCH off to avoid acoustic feedback.
3. Turn on the communicator and verify the BATTERY CONDITION INDICATOR
is on or blinking. If the LED does not come on at all, then replace or recharge
the battery. If that does not resolve the problem, then go to the troubleshooting
section to determine the cause.
4. Identify the microphone and headset leads. When using an Amron headset, the
microphone is the red banana plug and the headset is the black banana plug.
5. Plug the microphone lead into the OPERATOR MICROPHONE (red) jack and
the headset lead into the OPERATOR HEADSET (black) jack.
6. Don the headset and talk into the microphone. You should be able to hear
yourself in the headset. Adjust the OPERATOR VOLUME control and verify the
level can be adjusted to a comfortable level.
7. Go into the chamber inner lock and don the chamber headset
8. Talk into the microphone. You should be able to hear yourself in the headset.
9. Repeat in the outer lock.
10. If used, connect a source device, such as a MP3 player, to the
ENTERTAINMENT AUDIO INPUT. Set the volume control of the device to low
and start playing music. The music should be heard in chamber entertainment
speaker. Adjust the volume as required. Verify that the music is cut off when
the PUSH-TO-TALK SWITCH is pressed.
This completes the check of the Full Duplex (4-Wire) function of the communicator.
If at any point in the test you were not able to hear yourself in the headset as
indicated by the test, refer to the troubleshooting section to determine the cause.
6.1.2
2-WIRE CHECK
This procedure checks the communicator functions in the 2-Wire mode.
1. Set all the volume controls to the mid-scale (halfway) position.
2. Set all the volume controls to the mid-scale (halfway) position.
Summary of Contents for 2820A-02
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