Periodic Inspection; Troubleshooting; The Recording Control Unit (Ndv-1850) - JRC JCY-1850 Instruction Manual

3. Maintenance and Inspection

3.2 Periodic Inspection

Yearly inspections are recommended on the inside of the equipment and on its connections
with the Power Supply Unit and the other devices. For these inspections, you will be
charged.
Annual maintenance is requested by the Ship Class, please contact the Sales Department,
the nearest branch company, a branch office, a sales office, or any agent of Japan Radio
Co., Ltd.

3.3 Troubleshooting

If the equipment does not function correctly, check the equipment referring to the list down
below. Take the action recommended in the list. If the malfunction still lasts, contact the
Sales Department, the nearest branch company, branch office, sales office, or any agent of
Japan Radio Co., Ltd.
3.3.1

The Recording Control Unit (NDV-1850)

(1) Symptom Table for The Power Supply Unit (NBL-327)
Symptom
POWER LED fails to
light.
The BATTERY OP.
LED lights up.
BATTERY
ABNORMAL LED
lights up.
FAN ABNORMAL
LED lights up.
Causes
No power is supplied from the
switchboard.
POWER SWITCH is not on.
The AC-line fuse is blown.
Fault in the Power Supply Unit
No power is supplied from the
switchboard.
The fuse for the AC power source is
blown.
The battery cable is disconnected.
The fuse for the battery is blown.
The battery is deteriorated.
The fan is not working.
Check the switchboard.
Turn on the POWER SWITCH.
Check the AC-line fuse in the Power
Supply Unit. If it is blown, replace it
with a spare.
Contact us.
Check the switchboard.
Check the fuse for the AC power
source and, if it is blown, replace it
with a spare.
Contact us.
Contact us.
Check the expiry date of the battery.
If the battery has expired, contact
us.
Contact us.
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Actions to be taken