Vacron VDH-DXN578A, Руководство по оборудованию

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VDH-DXN578A / VDH-DXN578C Hardware Manual
11
2. Maintenance

Damped dust on the PCB board will cause a short circuit and will do
something wrong to the DVR or damage it. For long-term stability of the
DVR, regularly brush the circuit boards, connectors, chassis to remove
dust.

Please ensure the project is well-grounded, so images, audio signal will
not be disturbed. At the same time, we can protect the DVR from static
or inductive voltage damage.

Do not remove audio/video cables and RS-484 when the DVR is
powered on, or they will be damaged.

Do not use the TV interface in the DVR video output (VOUT), or the DVR
output circuit will be damaged easily.

Keep the DVR away from heats and hot places.

Keep the DVR chassis well-ventilated for better heat dissipation.

Have regular checks and system maintenance 。