MODEL 2810E-02 USER MANUAL
2810E-02-UM
REV 2.0
18
If the communicator checks out, then the problem is likely in either the chamber
wiring, the wiring of the chamber speaker(s), or an occupant’s headset.
4.3.4
GARBLED VOICE TO THE CHAMBER
The CHAMBER VOLUME control is set too high. Reduce this control until the
voice signal clears. If this does not solve the problem, check the chamber speaker
and/or headsets for corrosion or other defect. Replace if necessary. If the operator
is using a headset, remove the headset and communicate to an occupant by
pressing the PUSH-TO-TALK BUTTON and talking into the PANEL SPEAKER. If
this solves the problem then the operator headset may be wet or defective. If these
steps have not solved the problem, then disconnect the chamber wiring and
perform the communicator check out procedure per section 5.1. If the
communicator fails the check-out procedure, contact Amron per section 2.2 for
further assistance. If the communicator checks out, then the problem is likely in the
chamber wiring.
4.3.5
GARBLED VOICE TO THE OPERATOR
The OPERATOR VOLUME control is set too high. Reduce this control until the
voice signal clears. If this does not solve the problem, check the chamber speaker
or occupant’s headset microphone for corrosion or other defect. Replace if
necessary. If the operator is using a headset, remove the headset and listen to the
occupant using the PANEL SPEAKER. If this solves the problem then the operator
headset may be wet or defective. If these steps have not solved the problem, then
disconnect the chamber wiring and perform the communicator check out
procedure per section 5.1. If the communicator fails the check-out procedure,
contact Amron per section 2.2 for further assistance. If the communicator checks
out, then the problem is likely in the chamber wiring.
4.3.6
CHAMBER CUTS OFF
This is usually caused by an intermittent connection between either the chamber
wiring and the chamber communicator or the cable penetrator and the chamber
speaker or occupant headset. Check all connections to verify that they are clean
and tight. If the problem continues, then substitute the communication cable with a
known good cable. If this solves the issue, then the communication cable is
damaged and needs to be replaced or repaired. If none of these solutions fixes the
problem then contact Amron per section 2.2 for further assistance.
4.3.7
FEEDBACK - FULL DUPLEX (4-WIRE) MODE
There are two forms of feedback that can affect the 2810E-02: acoustic feedback
and cable crosstalk. Acoustic feedback occurs when an active microphone is close
enough to pick up and amplify the signal from a speaker or earphone. The required
distance between the microphone and speaker/earphone is dependent on the
volume setting and the amount of acoustic isolation. For example, an operator
headset left sitting on a work table my cause acoustic feedback. When the
operator dons the headset at the same volume level, the acoustic feedback will no
longer occur. The operator's head provides acoustic isolation between the