User Manual
Table Of Contents
- Contents
 - 1 Introduction
 - 2 Basic Operation Guide
 - 3 Wizard & Main Interface
 - 4 Camera Management
 - 5 Live Preview Introduction
 - 6 PTZ
 - 7 Record & Disk Management
 - 8 Playback & Backup
 - 9 Alarm Management
 - 10 Account & Permission Management
 - 11 Device Management
 - 12 Remote Surveillance
 - Appendix A FAQ
 - Appendix B Calculate Recording Capacity
 - Appendix C Compatible Device List
 
FAQ 
  DVR  User  Manual 
92 
Appendix A    FAQ 
Q1.   Why can’t I find the HDD? 
a.  Please check the power and SATA data  cables of the  HDD to make sure  they are  well 
connected. 
b.  For  some  DVRs  with  the  1U  or  small  1U  case,  the  power  of  the  adapter  may  be  not 
enough for operating them. Please use the power adaptor supplied along with the DVR. 
c.  Please make sure the HDDs are compatible with the DVR. See Appendix C Compatible 
Device List for details. 
d.  The HDD could have gone bad. Change a new one. 
Q2.   Why are there no images output in some or all of the camera windows? 
a.  Please make sure the resolutions of the cameras are supported by the DVR. 
b.  Please  make  sure  the  network  cables  of  the  IP  camera  and  DVR  are  both  connected 
properly and the network parameters are set correctly. 
c.  Please make sure the analog camera is connected properly. 
d.  Please make sure the network and the switch both work normally. 
Q3.   The screen has no output after booting the DVR normally. 
a.  Please make sure the screen, HDMI or VGA cables are good and well connected. 
b.  Please  make  sure  the  screen  supports  the  resolution  of  1280*1024 or  1920*1080.  The 
DVR cannot self adapt to the screen of which the resolution is lower than 1280*1024, and then 
the screen will remind you that the screen resolution is not supported by the DVR or just have 
no display. Please change a screen at 1280*1024 or 1920*1080 resolution before booting the 
DVR. 
Q4.   Forget the passwords? 
a.  The password for admin can be reset through “Edit Security Question” function.   
Click “Edit Security Question” button in the login window and then enter the corresponding 
answer of the selected question in the popup window, the password for admin will be reset to 
123456 by default. If you forget the answer of the question, this way will be invalid, please 
contact your dealer for help. 
b.  The passwords of other users can be reset by admin, please refer to 10.1.2 Edit User for 
details.     
Q5.   The DVR cannot add up to the maximum number of IP cameras? 
Take  the  4  CH  DVR  as  an example.  Refer  to  the  picture  below. The  remaining  bandwidth 
should be larger than the bandwidth of the IP camera you want to add, or you would fail to add 
the  IP  camera.  You  should  lower  the  added  cameras’  bitrate  to  release the  bandwidth.  It  is 
recommended to add cameras by “Quickly Add” for batch adding. 










