2830A-XX SERIES THREE DIVER
PORTABLE COMMUNICATOR USER MANUAL
283XA-UM
REV 7.0
31
5.5
TROUBLESHOOTING
Most problems are usually simple issues that can often be found by careful inspection of the
diver communicator, diving umbilical, and diver wiring. The following section will describe the
troubleshooting procedure for several common issues. If these sections do not cover your
particular issue, it is recommended that the diving umbilical be disconnected from the diver
communicator and follow the check-out procedures in sections 5.1 or 5.2. If the diver
communicator passes the check-out procedures then the issue is most likely in the umbilical
wiring/connections, the umbilical itself, or the wiring of the diver's hat/helmet.
5.5.1
CONNECTION ISSUES
Most diver communicator problems are caused by improper wiring or bad
connections. By following our wiring diagrams and making good connections, will
result in years of trouble-free communications. For longer life, all connections
should be soldered and copper wire must be tinned. It is strongly suggested that
dual banana plugs and/or MS connectors be used topside to provide convenient
and secure connections.
All cable splices must be soldered. Splices should be staggered and covered with
shrink tubing with an adhesive sealant and a general splice cover with adhesive
sealant to protect the connections. Potting the splices to create a reliable splice is
preferred but not necessary to create a reliable splice.
5.5.2
LOW BATTERY INDICATION
The BATTERY CONDITION INDICATOR LED indicates the battery level or state-
of-charge by monitoring the battery voltage. The battery voltage can be measured
independently using a Voltmeter by measuring the voltage across the EXTERNAL
BATTERY JACK. The voltage has to be 9 Volts or greater for the communicator
with rechargeable battery to operate. It is recommended that the communicator be
recharged for at least 10 hours if the measured voltage is less than 12 Volts
(depending on the age of the battery and the surrounding temperature). If the
BATTERY CONDITION INDICATOR indicates a low (blinking LED) or bad (off
LED) after charging, then either the battery is bad and needs to be replaced or the
charger has malfunctioned.
5.5.3
UNIT NOT OPERATING
The most common reason that a diver communicator appears to be dead when the
POWER SWITCH and SPEAKER SWITCH are turned on is a bad or loose battery
terminal. Check the battery per section 4.2.1. If the battery is good, then disconnect
any diving umbilical and perform the communicator check out procedure per
section 5.1 or 5.2.
If the battery and battery connections appear good and the communicator fails the
check-out procedure, then remove the screws holding the front panel. Lift the front
panel up carefully as the panel components are connected to a Printed Circuit
Assembly (PCA) by a wire harness. Verify that the connectors on the PCA are
firmly seated and no wires are loose from connector. Check that the wire
harnesses are soldered to the various connectors, controls, and speaker. There
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