DSC DSC-N114, User Manual, Page: 176 / 179

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Possible Reasons:
a) Poor network between NVR and IP camera, and there exists packet loss during the transmission.
b) The frame rate is not the real-time frame rate.
c) The NVR supports up to 16-channel synchronize playback at the resolution of 4CIF, if you want a
16-channel synchronize playback at the resolution of 720p, the frame extracting may occur, which leads to
a slight stuck.
Steps:
1. Verify the network between NVR and IP camera is connected.
1) When image is stuck, connect the RS-232 ports on PC and the rear panel of NVR with the RS-232
cable.
2) Open the Super Terminal, and execute the command of “ ping 192.168.0.0 –l 1472 –f
”
(the IP address
may change according to the real condition), and check if there exists packet loss.
Simultaneously press the Ctrl and C to exit the ping command.
2. Verify the frame rate is real-time frame rate.
Select “Menu > Record > Parameters > Record”, and set the Frame Rate to “Full Frame”.
3. Verify the hardware can afford the playback.
Reduce the channel number of playback.
Select “Menu > Record > Encoding > Record”, and set the resolution and bitrate to a lower level.
4. Reduce the number of local playback channel.
Select “Menu > Playback”, and uncheck the checkbox of unnecessary channels.
5. Check if the fault is solved by the above steps.
If it is solved, finish the process.
If not, please contact the engineer from our company to do the further process.
 No record file found in the NVR local HDD, and prompt “No record file found”.
Possible Reasons:
a) The time setting of system is incorrect.
b) The search condition is incorrect.
c) The HDD is error or not detected.
Steps:
1. Verify the system time setting is correct.
Select “Menu > Configuration > General > General”, and verify the “Device Time” is correct.
2. Verify the search condition is correct.
Select “Playback”, and verify the channel and time are correct.
3. Verify the HDD status is normal.
Select “Menu > HDD > General” to view the HDD status, and verify the HDD is detected and can be
read and written normally.
4. Check if the fault is solved by the above steps.
If it is solved, finish the process.
If not, please contact the engineer from our company to do the further process.