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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 turn on the power of
the unit, the HDD DISK MENU
is displayed.
• Check if alarm input signals are properly input to the
ALARM or ALARM/CONTROL at the rear panel.
• Check the camera connections.
• Check if the ambient operating temperature is between
+5 °C and +45 °C (41 °F - 113 °F).
• When the inside of unit exceeds 45 °C (113 °F), "THER-
MAL" may appear even within the ambient temperature
mentioned above.
• If "THERMAL" frequently appear on monitors, refer to the
dealer. The unit may have some 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, the HDD
DISK MENU will be displayed automatically.
• If the HDD DISK MENU is displayed even though no
HDDs were added or removed, refer to the dealer. The
HDD may have some trouble.
• Check if the built-in backup battery has been worn out.
The battery life is approx. 5 years. (The battery lifetime
may differ depending on the condition of the environ-
ment.)
• If the camera connections are proper, refer to the dealer.
Cable wires may be snapped or the unit may have some
trouble.
• Check the settings of the ALARM connector.
• Check if the operation mode is set to ALARM (alarm
mode).
Refer to p. 86
and 90.
Refer to p. 73.
Refer to p. 5
and 15.
Refer to p. 5.
Refer to p. 142.
–
Refer to p. 5.
–
Refer to p. 90.
Refer to p. 120
and 121.