SnuSnu
12-10-08, 02:17 AM
(Thank you all in advance for your help.)
Four months ago, I purchased a 32" Vizio Plasma. At the time, I was subscribed to Comcast Digital TV (not HDTV). No problems whatsoever. About a month later, I decided to upgrade to Comcast HDTV. The first box was defective - could only see greens and blues, no reds. There was also a loud humming. The second box solved the color problem, but I started to see faint pink and green horizontal lines scrolling from bottom to top. The humming remained. A Comcast technician came out to my house within the week, switched the box, and the problem remained. He blamed my TV.
After he left, I decided to plug the cable directly into the TV (bypassing the Motorola HD cable box) and there were no lines or humming. I tried playing DVDs to see if the lines were there. No lines. No humming.
The next day, I returned my Vizio for a Phillips 32" LCD HDTV for the heck of it. Same problem - pink and green lines, humming. Comcast came out again and said that "unshielded appliances" in my apartment or another apartment might be causing some interference and referred the problem to the network after checking my cable signal in my apartment and at the junction box. That was a month ago - no word back.
So, I decided to test out my apartment for electrical interference. I unplugged my microwave, my refrigerator, my computer, my lamps. No change.
All my TV-related cords (TV, cable box, DVD player) are plugged into a surge protector. A TV change didn't help, three or four cable box and cord changes didn't help. Comcast seemed to think that using HDMI wouldn't do the trick, either.
Exchanged my HDTV box for a plain ol' digital box. No lines, no humming. Perfect picture and sound.
What gives?
Four months ago, I purchased a 32" Vizio Plasma. At the time, I was subscribed to Comcast Digital TV (not HDTV). No problems whatsoever. About a month later, I decided to upgrade to Comcast HDTV. The first box was defective - could only see greens and blues, no reds. There was also a loud humming. The second box solved the color problem, but I started to see faint pink and green horizontal lines scrolling from bottom to top. The humming remained. A Comcast technician came out to my house within the week, switched the box, and the problem remained. He blamed my TV.
After he left, I decided to plug the cable directly into the TV (bypassing the Motorola HD cable box) and there were no lines or humming. I tried playing DVDs to see if the lines were there. No lines. No humming.
The next day, I returned my Vizio for a Phillips 32" LCD HDTV for the heck of it. Same problem - pink and green lines, humming. Comcast came out again and said that "unshielded appliances" in my apartment or another apartment might be causing some interference and referred the problem to the network after checking my cable signal in my apartment and at the junction box. That was a month ago - no word back.
So, I decided to test out my apartment for electrical interference. I unplugged my microwave, my refrigerator, my computer, my lamps. No change.
All my TV-related cords (TV, cable box, DVD player) are plugged into a surge protector. A TV change didn't help, three or four cable box and cord changes didn't help. Comcast seemed to think that using HDMI wouldn't do the trick, either.
Exchanged my HDTV box for a plain ol' digital box. No lines, no humming. Perfect picture and sound.
What gives?