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Symptom
Contact signals are not
output.
If the power supply is
turned off, the track data is
cleared without being
stored.
UPS does not function.
Cause
The power supply for the serial-LAN
interface circuit (CMH-2370) is not
turned on.
(Case where contact signal output
is acquired from the serial-LAN
interface circuit)
The serial-LAN interface circuit
(CMH-2370) is faulty.
(Case where contact signal output
is acquired from the serial-LAN
interface circuit)
The internal wiring is faulty.
The central control unit
(NDC-1590E/AE) is faulty.
The central control unit
(NDC-1590E/AE) is faulty.
The connection with UPS is faulty.
UPS is not set correctly.
The UPS battery is extremely
depleted.
The internal wiring is faulty.
UPS is faulty.
20-13
Action
Turn on the power supply for the
serial-LAN interface circuit.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Check the connection with UPS.
Set UPS correctly.
Replace the battery.
[Note]
At the battery replacement, make a
request for the work to the
specialized service staff. During the
replacement, turn off the
corresponding power supply
breaker in the ship. Otherwise, an
unexpected accident may occur.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Section 20 Failures and After-Sale Services
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