MSI GT780DXR User Manual page 9

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When installing the coaxial cable to the TV Tuner, it is necessary to ensure that the
metal shield is reliable connected to protective earthing system of the building.
Cable distribution system should be grounded (earthed) in accordance with
ANSI/NFPA 70, the National Electrical Code (NEC), in particular Section 820.93,
Grounding of Outer Conductive Shield of a Coaxial Cable.
If any of the following situations arises, get the equipment checked by a service
personnel:
To prevent explosion caused by improper battery replacement, use the same or
equivalent type of battery recommended by the manufacturer only.
Always keep the battery in a safe place.
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment has not worked well or you can not get it work according to
User's Manual.
The equipment was dropped and damaged.
The equipment has obvious signs of breakage.