[mythtv-users] Poor electrical ground (older apt.) + Nvidia tv out = poor tv quaility

[nate s]

I would also point out that it would be a bad idea to use a gas pipe. 
A water pipe might be best.  I don't know that a ups would help unless
it was grounded somehow itself.


On Fri, 8 Oct 2004 18:24:49 -0400, cythraul <cythrault at gmail.com> wrote:
> Would a UPS help?
> 
> 
> 
> On Fri, 08 Oct 2004 16:03:59 -0400, Kyle Rose <krose+mythtv at krose.org> wrote:
> > Wayne Steenburg <w.steenburg at myactv.net> writes:
> >
> > > I live in an older
> > > building which doesn't have grounded recepticles so I had connected the
> > > ground screw to the neutral wire ( They eventually go to the same place
> > > in the electrical panel, so it's usually better then nothing.)
> >
> > Aaaahhh!!  You are putting users in danger doing this by giving them
> > the false impression that there is a separate path to ground when in
> > fact there is not.  The safe thing to do here is described by the NEC:
> > install a GFCI, leave the ground unplugged, and label it "No Equipment
> > Ground."
> >
> > > in the message I ran a new circuit to my entertainment center.  Not only
> > > did the humming go away, but the tv-out is crystal clear.
> >
> > This is definitely the right thing to do.
> >
> > I know tihs is off-topic, but in case anyone decides to do what you
> > did above (Bad! Bad!): an acceptably safe solution (with the standard
> > disclaimer that I am *not* an electrician and will not be held
> > accountable should you disable yourself or a loved one by following my
> > advice) is to hook the ground screw up to a pipe (baseboard heating,
> > cold water, etc.) with a grounding clamp and then connect that
> > somewhere on the same system to the breaker panel ground, also with a
> > grounding clamp.  A ground wire doesn't ever need to carry line
> > current for any long period of time, but you need to make sure the
> > impedance is low enough that a breaker will trip if the circuit ground
> > faults.
> >
> > Still, running a new circuit is the much, *much* better solution, if
> > possible.
> >
> > Cheers,
> > Kyle
> 
> 
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