Delta Embedded DVR, Руководство пользователя

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DIAGRAM 7‐3 WD DETECTION
7.3.
COMMON FAULTS
DVR startup failure or continuously reboot
Possible reasons:
1. The system has been damaged from a bad DVR update.
2. There is a problem with the DVR main board error, please contact supplier.
3. There is an HDD error. Replace faulty HDD.
Remote control does not work
Possible reasons:
1. Check for batteries in remote control , especially Positive and Negative;
2. Check for batteries’ power;
3. Check if remote receiver is obscured;
3 Check if DVR address correspond to the remote control address .
DVR cannot control PTZ
Possible reasons:
1. RS‐485 cable connection error, A, B ports are inversely connected;
2. PTZ decoder, protocol, baud rate, address are incorrect;
3. Parallel connect a 120Ω resistance to resolve signal reflex caused by too many PTZs on the line.
4. The RS‐485 port on DVR is defective
Blurred screen in preview mode
Possible reasons:
Please make sure your cameras match your video format selected in the General menu. E.g. camera is
NTSC standard but the DVR is PAL standard, the preview would be blurred.
Blurred screen in playback mode or failure to playback records
Possible reasons:
1. Procedure error, reboot the DVR