6.2 Maintenance
1 In a damp environment, dust on circuit board may result in short circuits, affect the normal
operation of the DVR, and even damage the DVR. For long-term stable operation of the
DVR, brush off the dust on the circuit board, connectors, fans, and DVR case regularly.
2 Keep the equipment well grounded to avoid the interference to video/audio signal and
protect the DVR from damage caused by static or induced voltage.
3 Do not plug/unplug A/V cable, RS-232, and RS-485 with the power on, or it could easily
damage these ports.
4 If possible, do not use TV set on DVR’s local video output (VOUT). Otherwise, it could
easily damage the video output circuit in DVR.
5 Do not turn off the power switch to shutdown the DVR. Use the shutdown function in the
menu, or on/off button on the front panel (hold it down for 3 seconds) to turn off the DVR
power automatically and prevent damage to the hard drive.
6 Keep the DVR away from heat sources or hot lplaces.
7 Keep the area around the DVR well ventilated.
Regular system inspection and maintenance are required.
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