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R4, R8, R16 DVR V8.1.0 User Manual
APPENDIX A: TROUBLESHOOTING
APPENDIX A
Troubleshooting
A.1 System troubleshooting
Q
1. What can I do if the system does not detect the HDD?
A
Verify that the power supply system is properly connected and data cable and power cables are securely connected, and if
something wrong with the HDD interface. Or you may check if your HDD is supported by referring to the specifications or
descriptions.
Q
2. I changed the password but forget the new password, how can I access the system?
A
If you forget your system password, please consult with your technical support organization. We strongly suggest that you set
a password that is easy to remember and relatively secure. If you have a special security requirements, not configure a simple
password, such as 000000.
Q
3. We see an abnormal video signal and sometimes no video signal after connecting the
camera to the DVR. The power supply for both devices is OK. What is wrong?
A
Check network cable to ensure it is properly connected and if it is worn out or needs to be replaced. Verify that the video
format (NTSC or PAL) is configured correctly in the camera and the DVR.
Q
4. How can I protect the DVR from being harmed by heat?
A
The DVR must dissipate heat while it is running. Always place the DVR where good air circulation is present and it is away from
heat sources. This practice will ensure stability and extend the life of the DVR.
Q
5. The remote control for the DVR doesn’t work while the monitor screen is OK and panel
keys are functional. Why?
A
Try again by aiming the remote controller at the IR receiver on front panel. If it still doesn’t work, please check the battery
voltage in the remote control. If these steps do no fix the problem, the remote control might be broken.
Q
6. I want to take out HDD from my PC and install it in the DVR. Can it work?
A
All HDDs supported by the DVR can be used. Initialize / reformat the HDD after installing it in the DVR. Reformatting the HDD
will erase all data from the disk.
Q
7. Can I playback while recording?
A
Yes. The system supports playback while recording.
Q
8. Can I clear some records on HDD of DVR?
A
For file security concerns, you may not clear some of the recordings. If you want to remove all the records, you can format HDD.
Summary of Contents for R4
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