Dahua N41C1P User Manual page 359

Questions
Keyboard cannot control
NVR.
Alarm signal cannot be
disarmed.
Alarm function is null.
Record storage period is not
enough.
Cannot playback the
downloaded file.
Forgot local menu operation
password or network
password
There is no video. The
screen is in black.
The displayed video is not
full in the monitor.
There is no HDMI output.
Reasons
● NVR serial port setup is not correct.
● Address is not correct.
● When there are several switchers, power supply is not
enough.
● Transmission distance is too far.
● Alarm setup is not correct.
● Alarm output has been open manually.
● Input device error or connection is not correct.
● Some program versions might have this problem.
Upgrade your system.
● Alarm setup is not correct.
● Alarm cable connection is not correct.
● Alarm input signal is not correct.
● There are two loops connect to one alarm device.
● Camera quality is too low. Lens is dirty. Camera is
installed against the light. Camera aperture setup is
not correct.
● HDD capacity is not enough.
● HDD is damaged.
● There is no media player.
● No DXB8.1 or higher graphic acceleration software.
● There is no DivX503Bundle.exe control when you play
the file transformed to AVI via media player.
● No DivX503Bundle.exe or ffdshow-2004 1012 .exe in
Windows XP OS.
Contact your local service engineer or our sales person for
help. We can guide you to solve this problem.
● IPC IP address is not right.
● IPC port number is not right.
● IPC account (username/password) is not right.
● IPC is offline.
Check current resolution setup. If the current setup is
1920*1080, then you need to set the monitor resolution as
1920*1080.
● Displayer is not in HDMI mode.
● HDMI cable connection is not right.
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User's Manual