A/C VOLTAGE BETWEEN ANY GROUND AND TV -Ground Loop?

Video Asylum

TVs, VCRs, DVD players, Home Theater systems and more.

With nothing hooked up to the Mitsu and power on, I put a DMM between the TV "F" or rca's and a house ground I get 57 VAC@60Hz. Switch polarity on meter - 34 VAC@60Hz
I have been tracing a ground loop hum coming from my Mitsu 55857. When any RCA's from a grounded source are hooked up one at a time the voltage drops until enough grounded RCA's are hooked up, reducing to 0 volts????
Only the Mitsubishi - 1 of 4 TV all on the same splitter, is putting out VAC.
The CATV cable will produce the same effects as the house ground. It appears the CATV is clean, as I checked it at the grounding block.
I have been butting heads with the mitsu tech for days. He claims it's a ground loop in the CATV - I say it's a floating gnd problem inside the tv or the power supply.
Any feedback would probably avoid an ulcer!
Thanks,
Mitch
Mitch

This post is made possible by the generous support of people like you and our sponsors:

Herbie's Audio Lab

Topic - A/C VOLTAGE BETWEEN ANY GROUND AND TV -Ground Loop? - wheezer 18:37:31 10/19/01 (7)

This is how I do it... - Wayne 19:15:19 10/20/01 (4)

Theory is correct but reality is very dangerous - wheezer 20:16:13 10/20/01 (3)

Re: Theory is correct but reality is very dangerous - Wayne 21:01:16 10/20/01 (2)

I got the problem solved! - wheezer 04:55:49 10/22/01 (0)

Re: Theory is correct but reality is very dangerous - wheezer 21:11:30 10/20/01 (0)

Re: A/C VOLTAGE BETWEEN ANY GROUND AND TV -Ground Loop? - Lasermeister 19:16:49 10/19/01 (1)

Re: A/C VOLTAGE BETWEEN ANY GROUND AND TV -Ground Loop? - wheezer 20:20:31 10/19/01 (0)

You can not post to an archived thread.