TV Line flash on screen when light turns off..

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cadpoint

Senior Member
Location
Durham, NC
Looking at another thread. I don't know if this is directly related, but maybe is Outrush or inrush and or flicker!

Is another form of inrush or flicker what you can see as a single line flash on a TV screen as one turns off a light ? Or just a loose neutral ?

If it's not flicker what is it ?> I'm just wondering I don't know?

Does anyone carry a TV to quickly spot a problem like this ? :roll:
 

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
Is another form of inrush or flicker what you can see as a single line flash on a TV screen as one turns off a light ? Or just a loose neutral ?
It's most likely just a bit of RF interference from the arc of the switch contacts opening.
 

cadpoint

Senior Member
Location
Durham, NC
It's most likely just a bit of RF interference from the arc of the switch contacts opening.

Thanks Larry, is there anything I could do in this case to identify this
tweak of RF? Or, just put in a 15 or 20 amp rated switch, or one of better quality ?

This is (I believe) a case of a old 2 conductor, with a newer 12-2 w/G, if that even matters. The switch is on the old line the receptacle is on the new !

Should I just check all the joints and let it ride?
 

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
You can certainly try another switch temporarily, but I wouldn't sweat it. Is it screwing up important recordings, or just an annoyance?

Generally speaking, I wouldn't thing 'critical' TV-watching is occurring during switching lights off.
 
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