|
|
However, it's also possible for this to happen when a TV is hooked to a cable system because it's cable shield is connected to Earth ground. In such a case, this may or may not be a cause for concern.
TVs using Hot chassis designs couple the antenna and its cable shield to the tuner with small coupling capacitors. A side effect is that some AC leakage current can flow through these capacitors, possibly enough to trip the GFCI. If the TV's plug isn't polarized, try reversing it and see if the problem goes away. If it is polarized, make sure your outlet is wired properly and you aren't using a non-polarized extension cord with the TV plugged reversed.
It's also possible the TV is faulty and the tripping is actually taking place as a result of a legitimate problem.
To assure the set is safe, (whether reversing the plug helps or not), a leakage test should really be performed by measuring the AC current between the TV's antenna shield and an Earth ground. Try it with both polarities of the wall plug. Anything over about 8 mA will trip a GFCI. If the leakage current is less than this with either polarity of the wall plug, the GFCI is overly sensitive. If the leakage current is much more with either polarity of the wall plug, the set is defective and should be serviced immediately. It should not be used until the problem is corrected as a serious shock hazard exists.