8. Troubleshooting
JCY-1800/1850 VDR/S-VDR Installation Guide
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DOC No. 7ZPJD0387C
8. 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.
8.1. The Recording Control Unit (NDV-1800/1850)
8.1.1. Symptom Table for The Power Supply Unit (NBL-327)
Symptom Causes Actions to be taken
No power is supplied from the switchboard. Check the switchboard.
POWER SWITCH is not on. Turn on the POWER SWITCH.
The AC-line fuse is blown. Check the AC-line fuse in the Power Supply
Unit. If it is blown, replace it with a spare.
POWER LED fails to
light.
Fault in the Power Supply Unit Contact us.
No power is supplied from the switchboard. Check the switchboard. The BATTERY OP. LED
lights up.
The fuse for the AC power source is blown. Check the fuse for the AC power source and,
if it is blown, replace it with a spare.
The battery cable is disconnected. Check if the battery cable is connected.
The fuse for the battery is blown. Check the fuse in the middle of the battery
cable. If it is blown, replace it with a spare
fuse.
BATTERY ABNORMAL
LED lights up.
The battery is deteriorated. Check the expiry date of the battery. If the
battery has expired, exchange a battery.
FAN ABNORMAL LED
lights up.
The fan is not working. Check the cable that connects the fans and the
DC/DC power supply. If there is no problem,
replace the fans.