2 MAINTENANCE, TROUBLESHOOTING
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2.4 Troubleshooting
The troubleshooting table below provides common symptoms of trouble and
the means to rectify them. If you cannot restore normal operation, do not
attempt to check inside the equipment. Refer any repair work to a qualified
technician.
Troubleshooting
Symptom Remedy
Power
Cannot turn on the power. • Check that the power connector is firmly fastened.
• Check if the breaker (red button) on the rear panel
of the transponder unit has popped out. Find out
the cause before pushing in the breaker to restore
normal operation.
• Check the power supply.
Transmitting, receiving messages
Cannot transmit or
receive.
• Check that the VHF antenna cable is firmly
fastened.
• Check the VHF antenna.
• For TX message, try different TX channel
(operating sequence: [MENU], [4], [1], [1]).
Can transmit but message
is sent to wrong party.
• On the SET MSG TYPE sub-menu, check that
ADDRESS TYPE is selected to ADDRESS-CAST
and MMSI is correct, before sending a message.
(operating sequence: [MENU], [4], [1], [1])
Position data
No position data • Check the GPS antenna for damage.
• Check the GPS antenna cable and its connectors.
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