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CAUTION: There may be a voltage difference between TV mains GND and satellite signal
distribution or Cable TV distribution systems' GND. Or these kinds of voltage differences may
appear because of any failure or changing later on the electricity network. In these cases,
depending on the voltage difference rate, there may occur heating, fire and other serious
damages on TVs and STBs through the socket or cable connections (SCART, HDMI, RF,
RCA etc.). Considering such possibilities, we strongly recommend you to use “Galvanic
Isolator*” during the system installation and not remove the isolator.
Note: Applying an isolator causes a little signal loss.
*Equipment connected to the protective grounding of the building through the mains
connection or through the other equipment with a connection to protective grounding and to
a cable distribution system using coaxial cable, may in some circumstances create a fire
hazard.
Connection to a cable distribution system has therefore to be provided through a device
providing electrical isolation below a certain frequency range. (Galvanic Isolator EN 60728-
11:2010)