LT Security LTD7708 - Manual (Page 50)

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50 INSTRUCTION MANUAL
5. FAQ
If your problem is not listed below, please call our toll-free number for more support.
1. Question: DVR is not working after starting？
Answer:
 Check the adaptor input
 Check the on-off power line, is it well-connected?
 Check the power on-off
 Check the upgrade procedure
 Check the main board of DVR
2. Question: DVR is rebooting automatically or stopped after starting the DVR for
several minutes?
Answer:
 Instability or low input voltage
 Bad track hard drive or the line of hard drive is bad
 On-off power supply is not enough
 The front-end video signal instability
 High temperature, too much dust, too bad the DVR operating environment
 The main board is not well-connected with other boards
 The hardware of DVR is defective
3. Question: No output of single channel, multi channel or all channel video?
Answer:
 Please check the adaptor of camera whether to see if it is well-connected
 Please check the cable for connecting video input/output in the back panel
of DVR
 Please insert the video source directly into the display device and check if
they are causing the problem.
 Check the brightness of the picture and bring it back to its original default
setting
 No video input signal or too weak
 Display settings in the preview set to be closed
 The hardware of DVR is defective
4. Question: DVR cannot record after startup and the interface is showing "H"
Answer:
 Make OK power adaptor is DC 19V
 Make OK HDD is formatted
 Check the power and data connection cables of the HDD
 The HDD is defective
 The SATA port is not working
5. Question: What is meaning of“R”“M”“I”“H” showed in interface?
Answer:
 “R”means the channel is recording