Dahua Mobile DVR Series, Руководство пользователя

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7 FAQ
1. After the vehicle started, the device cannot boot up properly.
There are following possibilities:

Input power is not correct. It is too high or too low.

Power connection is not correct.

Power switch button is damaged.

Program upgrade is wrong.

HDD malfunction or something wrong with HDD ribbon.

Main board is damaged.
2. Device often automatically shuts down or stops running.
There are following possibilities:

Input voltage is not stable or it is too low.

Device installation is not right or the components connection error.

Working environment is too harsh, too much dust.

Hardware malfunction.
3. System cannot detect HDD or SD card.
There are following possibilities:

Has not installed HDD or SD card.

HDD or SD card connection error.

HDD or SD card is broken.
4. One-channel has no video.
There are following possibilities:

The camera is damaged, please replace the camera.

The connection cable is damaged, please replace the cable.
5. There is no video output whether it is one-channel, multiple-channel or all-channel
output.
There are following possibilities:

Program is not compatible. Please upgrade to the latest version.

Brightness is 0. Please restore factory default setup.

There is no video input signal or it is too weak.

Check privacy mask setup or your screen saver.

Device hardware malfunctions.
6. Real-time video color is distorted.
There are following possibilities:

When using BNC output, NTSC and PAL setup is not correct. The real-time video
becomes black and white.

Device and monitor resistance is not compatible.

Video transmission is too long or degrading is too huge.