Digital Video Recorder User Manual
292
•
NTSC:
Acronym for National Television System Committee. NTSC is an analog
television standard used in such countries as the United States and Japan. Each
frame of an NTSC signal contains 525 scan lines at 60Hz.
•
NVR:
Acronym for Network Video Recorder. An NVR can be a PC-based or
embedded system used for centralized management and storage for IP
cameras, IP Domes and other DVRs.
•
PAL:
Acronym for Phase Alternating Line. PAL is also another video standard
used in broadcast televisions systems in large parts of the world. PAL signal
contains 625 scan lines at 50Hz.
•
PTZ:
Acronym for Pan, Tilt, Zoom. PTZ cameras are motor driven systems that
allow the camera to pan left and right, tilt up and down and zoom in and out.
•
USB:
Acronym for Universal Serial Bus. USB is a plug-and-play serial bus
standard to interface devices to a host computer.
18.3 Troubleshooting
No image displayed on the monitor after the device is starting up normally.
Possible Reasons:
—
No VGA or HDMI connections.
—
Connection cable is damaged.
—
Input mode of the monitor is incorrect.
Step 1
Verify the device is connected with the monitor via HDMI or VGA cable.
If not, please connect the device with the monitor and reboot.
Step 2
Verify the connection cable is good.
If there is still no image display on the monitor after rebooting, please check if
the connection cable is good, and change a cable to connect again.
Step 3
Verify Input mode of the monitor is correct.
Please check the input mode of the monitor matches with the output mode of
the device (e.g. if the output mode of DVR is HDMI output, then the input
mode of monitor must be the HDMI input). And if not, please modify the input
mode of monitor.
Step 4
Check if the fault is solved by the step 1 to step 3.
If it is solved, finish the process.
If not, please contact the engineer from our company to do the further
process.