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Remote Access via Mobile Devices
Chapter 10 Appendix
1. Q: What can I do if the system does not detect the HDD?
A: Check if the power supply system is properly connected, data cord and power cables are
securely connected, and if something is wrong with the HDD interface. Also, you may check if your
HDD is supported by referring to the specications or descriptions.
2. Q: I have changed the password but forgot the new password, how can I access the system?
A: If you forget your system password, please consult our technical personnel. We strongly suggest
users to use a password that is easy to remember and relatively safe. If you have safety requirements,
please do not setup a simple password, such as 0000000.
3. Q: We see abnormal video signal or even no video signal by connecting the NVR and
camera together. The power supply for both devices is OK. What is wrong?
A: Check network cables on the NVR side to see if the cable is rmly connected and if it is worn out and
needs to be replaced, or check if the NTSC or PAL is selected consistently
4. Q: How do you prevent the NVR from being inuenced by heat?
A: The NVR needs to dissipate heat while it is running. Please place the NVR in a place with good air
circulation and away from heat sources to ensure stability and life of the NVR.
5. Q: The remote controller of the NVR doesn’t work while the monitor screen is OK and panel keys
are functional. Why?
A: Operate again by aiming the remote controller at the IR receiver on the front panel. If it still
doesn’t work, please check if the batteries in the remote controller are dying. If not, check if the remote
controller is broken.
6. Q: I want to take out the HDD from my PC and install it in the NVR. Can it work?
A: All HDDs supported by the system can be used. But remember, once the NVR runs, the data on your
HDD will be lost.
7. Q: Can I playback while recording?
A: Yes. The system supports the function of playing while recording.
8. Q: Can I clear some records on the HDD of the NVR?
A: In consideration of the le security, you may not clear part of the records. If you want to remove all
the records, you can format the HDD.
9. Q: Why can’t I log into the NVR client?
A: Please check if the network connection settings are correct and the RJ-45 port is in good contact.
Also check if your account and password are correctly input.
10. Q: Why can’t I nd any records during playback?
A: Please check if the data line connection for the HDD is OK and system time is properly adjusted.
Try a few times and restart. If it still doesn’t work, check if the HDD is broken.
11. Q: Why can’t the NVR control PTZ?
A: Please check if:
a) PTZ in the front side is malfunctioned.
b) Setting, connection, and installation of the PTZ decoder are correct.
c) PTZ setting of NVR is correct.
d) Protocol of the PTZ decoder matches that of the NVR.
e) Address of the PTZ decoder matches that of the NVR.
f) If multiple decoders are connected, the farthest side of the AB line for the PTZ decoder should
have
a 120Ω resistance for reection suppression and impedance matching. Otherwise, the PTZ control
will be unstable.
12. Q: Why doesn’t dynamic detection work?
A: Please check if the motion detection time and motion detection regional settings are correct and if
the sensitivity is set too low.
10.1 Troubleshooting
USER MANUAL
10 Appendix
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