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5.2 Maintenance
1 Please brush the printed circuit boards, connectors, fans, machine box and
associated parts regularly.
2 Please keep the earth well conected to prevent the video or audio signal
from interfering with the DVR and from static or inductive electricity.
3 Do not pull out the video signal line or RS-232 port or RS-485 port with
the power on.
4 Do not use a TV in the local video output port(VOUT) of the DVR. It will
easily damage the video output circuit.
5 Do not turn off the power directly. Please use the turn-off function in the
menu or press the turn-off button in the panel (3 seconds or longer) to
protect the hard disk.
6 Please keep the DVR away from any heat resource.
7 Please keep the DVR well ventilated for better heat radiation.
8 Please check the system and maintain regularly.