On Friday, May 09, 2014 12:44:00 AM Jörn Nettingsmeier
wrote:
On 05/08/2014 09:30 PM, Jonathan E Brickman
wrote:
AC power ground lifts sometimes have helped,
sometimes
There is no such thing as an AC power ground lift. The correct term, and
please don't take it personally, is _criminal_ _incompetence_.
It sometimes makes sense to lift the AC ground if you are pulling power from
more than one source. (To prevent ground loops) As long everything is grounded
to the remaining source correctly.
Potential difference by getting the power from different main jacks or
experiencing ground loops, because you don't care about a correct
grounding are no excuse to give a life-endangering "hint".