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DVR color or brightness setup is not correct.
6. Cannot search local records.
There are following possibilities:
HDD ribbon is damaged.
HDD is broken.
Upgraded program is not compatible.
The recorded file has been overwritten.
Record function has been disabled.
7. Video is distorted when searching local records.
There are following possibilities:
Video quality setup is too low.
Program read error, bit data is too small. There is mosaic in the full screen. Please
restart the DVR to solve this problem.
HDD data ribbon error.
HDD malfunction.
DVR hardware malfunctions.
8. There is no audio when monitor.
There are following possibilities:
It is not a power picker.
It is not a power acoustics.
Audio cable is damaged.
DVR hardware malfunctions.
9. There is audio when monitor but there is no audio when system playback.
There are following possibilities:
Setup is not correct. Please enable audio function
Corresponding channel has no video input. Playback is not continuous when the screen
is blue.
10. Time display is not correct.
There are following possibilities:
Setup is not correct
Battery contact is not correct or voltage is too low.
Crystal is broken.
11. DVR cannot control PTZ.
There are following possibilities:
Front panel PTZ error
PTZ decoder setup, connection or installation is not correct.
Cable connection is not correct.
PTZ setup is not correct.
PTZ decoder and DVR protocol is not compatible.
