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Help - Keep losing signal using HDMI

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Old 09-27-2007, 04:11 PM   #1
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Default Help - Keep losing signal using HDMI

Please help - this is driving me crazy! I have a 40" Panasonic plasma and Time Warner HD cable connected using a 6' HDMI cable. When viewing HD channels, the signal often gets dropped for several seconds, the screen will go black then reappear after just a few seconds. I does not do this all the time, but when it does, it will do it often - before I get frustrated and tune into a SD channel. Is there something wrong with the cable, my cable box, my tv, the broadcasting network or is this normal from the newness on HD/hdmi?
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Old 09-27-2007, 04:20 PM   #2
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Originally Posted by rredman View Post
Please help - this is driving me crazy! I have a 40" Panasonic plasma and Time Warner HD cable connected using a 6' HDMI cable. When viewing HD channels, the signal often gets dropped for several seconds, the screen will go black then reappear after just a few seconds. I does not do this all the time, but when it does, it will do it often - before I get frustrated and tune into a SD channel. Is there something wrong with the cable, my cable box, my tv, the broadcasting network or is this normal from the newness on HD/hdmi?
You probably should have posted this in the Cable TV section. Does this happen when you use component? I would first try a different HDMI cable. Or do you have another HDMI device that you can try on that port of the TV; Bluray, HDDVD, PS3 XBOX? If you try any of those and everything is fine, then the cable and TV are fine.

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Old 09-27-2007, 04:33 PM   #3
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Thank you for the feed back. I do have a DVD connected with hdmi as well and the tv never goes black while watching DVDs, only when watching HD braodcast channels. I have tries using component and it worked fine, although that was before connecting the hdmi dvd. The tv is mounted to wall with cables run through the wall, so testing different outputs is not very easy. I guess before I take off wall and start pulling cables, wondering if the signal drops can be from electric static from my other components or maybe the box connection (I have checked & rechecked they are all tight). The big mystery to me is that sometimes (mostly) I can watch for hours and this never happens. Can time of day while watching HD have different strengths?
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Old 09-27-2007, 05:25 PM   #4
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Thank you for the feed back. I do have a DVD connected with hdmi as well and the tv never goes black while watching DVDs, only when watching HD braodcast channels. I have tries using component and it worked fine, although that was before connecting the hdmi dvd. The tv is mounted to wall with cables run through the wall, so testing different outputs is not very easy. I guess before I take off wall and start pulling cables, wondering if the signal drops can be from electric static from my other components or maybe the box connection (I have checked & rechecked they are all tight). The big mystery to me is that sometimes (mostly) I can watch for hours and this never happens. Can time of day while watching HD have different strengths?
It sounds to me like it could be an issue with the cable STB's HDMI port. I would get a new one.

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Old 09-27-2007, 05:29 PM   #5
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It sounds like a glitch in the cable box to me. Something you probably will not get the cable company to own up to, but there have been a lot of reports of cable boxes having issues with HDMI connections. I'd run some component and audio connections and leave them in the wall. They may solve your problem.
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Old 09-29-2007, 10:48 AM   #6
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If you can switch to SD and the HDMI behaves, it is probably not HDMI that is the problem.

I'd guess that your signal from the cableco is not strong enough and the tuner is dropping digital channels because of that.
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Old 10-06-2007, 08:15 AM   #7
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Thank you for the feed back. I do have a DVD connected with hdmi as well and the tv never goes black while watching DVDs, only when watching HD braodcast channels. I have tries using component and it worked fine, although that was before connecting the hdmi dvd. The tv is mounted to wall with cables run through the wall, so testing different outputs is not very easy. I guess before I take off wall and start pulling cables, wondering if the signal drops can be from electric static from my other components or maybe the box connection (I have checked & rechecked they are all tight). The big mystery to me is that sometimes (mostly) I can watch for hours and this never happens. Can time of day while watching HD have different strengths?
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