5 faq – LT Security LTD7726 User Manual
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5 FAQ
If your problem is not listed below, please call our technical dept. for more support.
1. Question: Why is DVR 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: Why is DVR rebooting automatically or stopped after starting the DVR
for several minutes?
Answer:
Instability or low input voltage
Bad track hard drive or the connection of hard drive is bad
On-off power supply does not have enough power
The front-end video signal instability
High temperature, too dusty or bad operating environment.
The main board is not well-connected with other add-on boards
The hardware of DVR is defective
3. Question: How come there is no output of single channel, multi channel or all
channel video?
Answer:
Please check the adaptor of camera 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 signal is too weak
Display setting in the preview is set to closed
The hardware of DVR is defective
4. Question: Why can’t the DVR record after startup and the interface is showing
"H"?
Answer:
Make sure power adaptor is DC 19V
Make sure 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 the meaning of“R”“M”“I”“H” showed in interface?
Answer:
“R”means the channel is recording
“M” means the channel is on motion detection
“I”means the channel is on alarm
“H” means either no HDD, the HDD is bad or the HDD is full.
6. Question: DVR is having problem with real-time images such as bad image color
or serious brightness distortion. What may be the problem?
Answer:
If PAL and NTSC is not correctly selected on the BNC output, the images will be
in black and white.
DVR is not compatible with monitor
The video transmission distance is too far