Dahua NVR52-4KS2 SERIES User Manual

8 FAQ
Questions Reasons
The Device failed to start
properly.
●
Incorrect input power.
●
Incorrect connection of the power cord.
●
Damaged power switch.
●
Wrong program.
●
Damaged HDD.
●
Damaged mainboard.
The Device automatically shuts
down or stops running.
●
Unstable or insucient input voltage.
●
Insucient button power.
●
Improper operating environment.
●
Hardware error.
The Device cannot detect HDD.
●
Damaged HDD or HDD ribbon.
●
Loose connection of HDD cable.
●
Damaged SATA port.
There is no video output in all
channels.
●
Program version is not correct.
●
Brightness is 0.
●
Hardware error.
I cannot nd local records.
●
Damaged HDD or HDD ribbon.
●
Program version is not correct.
●
The recorded le has been overwritten.
●
The recording function has been disabled.
Distorted recorded videos.
●
Video quality setup is too low.
●
Program read error, bit data is too small. There is mosaic in
the full screen. Restart the NVR to solve this problem.
●
HDD data ribbon error.
●
HDD malfunction.
●
NVR hardware malfunctions.
Time display is not correct.
●
Setup is not correct.
●
Battery contact is not correct or voltage is too low.
●
Crystal is broken.
User's Manual
460

Dahua NVR52-4KS2 SERIES Specifications

General

Brand	Dahua
Model	NVR52-4KS2 SERIES
Category	Network Hardware
Language	English