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Check item/Remedy
Problem
Page
Alarm operations are not acti-
vated.
"VIDEO LOSS" appears on the
monitor.
"THERMAL" appears on the
monitor.
The clock does not keep cor-
rect time.
When you power on the unit,
DISK CONFIG MENU will be
displayed.
• Check if alarm input signals are properly input to the
ALARM IN or ALARM/CONTROL at the rear panel.
• Check the camera connections.
• Check if the ambient operating temperature is between
+5 °C and +45 °C.
• When the inside of unit exceeds 45 °C, "THERMAL" may
appear even within the ambient temperature mentioned
above.
• If "THERMAL" frequently appear on monitors, refer to the
dealer. The unit may have trouble.
• Check if the built-in backup battery has been charged
enough. If not so, supply power to the unit for 48 hours or
more to recharge the battery.
• Check if HDDs were added or removed. If so, DISK CON-
FIG MENU will be displayed automatically.
• If DISK CONFIG MENU is displayed even though no
HDDs were added or removed, Refer to the dealer. The
HDD may have trouble.
• Check if the built-in backup battery has been worn out.
The battery can endure for approx. 5 years. (The
endurance may differ depending on conditions.)
• If the camera connections are proper, refer to the dealer.
Cable wires may be snapped or the unit may have trou-
ble.
• Check the settings of ALARM IN.
• Check if the operation mode is set to ALM (alarm mode).
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