⚫ 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.
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