Is it possible the upward scrolling bars I'm seeing on an LCD TV with a digital cable STB are a ground loop?

I had this problem with TWC in a different house, with analog cable and no STBs about a year ago with 2 different CRT TVs in different parts of the house. I tried *everything* but never found any cause on my side. I read here that sometimes it is on the cable provider side if they have a bad plant etc...

I did not think this was even possible with an all digital setup?!?!

Thanks (shakes head).
Qt

I was just wondering if this was *possible* (ground loop on an LCD w/ digital signal)?

T

Yes,it is possible. I had the same problem, upward scrolling lines in my display. I got a cable tv ground isolator and the lines disappeared. As well as the "hum" through my home theater receiver.

I have a Samsung LCD HDTV and digital cable.

Yes,it is possible. I had the same problem, upward scrolling lines in my display. I got a cable tv ground isolator and the lines disappeared. As well as the "hum" through my home theater receiver.

I have a Samsung LCD HDTV and digital cable.
http://www.cencom94.com/gpage10.html

So I'm still seeing my bars in my digital cable as I posted above.
I'm running all components thru a single surge protector, and the cable thru the Axiom ground isolator i bought last yr.
The surge protector has the "protected" red light on, but the "gounded" green light is not. Never has been in previous house last yr, or previous apt.

Would the green " grounded" light mean there is a problem or should it be lit all the time as well? Thanks, so frustrating.

Qt

Have you checked the manual for the surge protector to determine what the status indicates (good or bad)?

I would assume that "green (on) is good". But don't go by me. ;)

Have you checked the manual for the surge protector to determine what the status indicates (good or bad)?

I would assume that "green (on) is good". But don't go by me. ;)

That's what i originally thought too, but the "protected" light next to it is red and on, and I know protected is good!
Wish I still had the manual, it was a "Prime" brand, at Lowe's. link below.

Could the green "grounded" light mean it had been hit with a surge, and the surge was grounded to save my stuff?

http://207.5.90.109/surge7.aspx?CatSubID=86
Mine is the 1680j model, 3rd one down.

Anyone else?

T

What's the make/model? Perhaps you/we can find a manual online to check. Or... perhaps someone else may have the same surge protector that can confirm which status lights are "good". ;)

What's the make/model? Perhaps you/we can find a manual online to check. Or... perhaps someone else may have the same surge protector that can confirm which status lights are "good". ;)
Have you checked the manual for the surge protector to determine what the status indicates (good or bad)?

I would assume that "green (on) is good". But don't go by me. ;)

That's what i originally thought too, but the "protected" light next to it is red and on, and I know protected is good!
Wish I still had the manual, it was a "Prime" brand, at Lowe's. link below.

Could the green "grounded" light mean it had been hit with a surge, and the surge was diverted (grounded) to save my stuff?

http://207.5.90.109/surge7.aspx?CatSubID=86
Mine is the 1680j model, 3rd one down.

Anyone else?
T

No manual online...
Why not contact the manufacturer and ask about the normal/proper status indicators?

http://207.5.90.109/contact_tech.aspx

If you think the surge protector is suspect... bypass to test.

I would assume that if the green "grounded" light is off... that it is not grounded. "Protected" light or not, either the surge protector is bad or the outlet (circuit) is not properly wired (grounded).