Loss of HD signal - Canadian TV, Computing and Home Theatre Forums
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post #1 of 3 (permalink) Old 2012-01-10, 09:35 AM Thread Starter
Join Date: Mar 2011
Location: Montreal
Posts: 339
Loss of HD signal

Last night I noticed continual loss of the HD signal. Screen would go black for about 1 sec come back for about a minute and then black again. When I switched to the corresponding SD channel and then back to the HD channel it was fine. This happened on different channels US and Canadian.

Has anyone noticed this?
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post #2 of 3 (permalink) Old 2012-01-10, 03:24 PM
Join Date: May 2002
Location: Toronto, Rogers, 9865 & 8300-eHDD, Sharp LC75N8000U, Denon AVR4310Ci; Sony KDL40W3000, 9865
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Did you check your signals strength and S/N ratio at the time? Often if the weather is cold there is contraction of the metals and sometimes the connections outside are not as good as they were in summer. If you have a marginal signal, it can explain the issue. And yes, it can affect different channels differently. The higher QAM frequencies are usually affected first.


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post #3 of 3 (permalink) Old 2012-05-13, 08:18 AM
Join Date: Aug 2009
Posts: 57
Is your hd box plugged into your TV via HDMI?

Another possibility can be simply a bad syncro between your TV and receiver if the problem becomes recurring. In those cases you need to shut everything down, unplug your receiver from the wall, unplug the HDMI cable, and plug your power cable back in. Wait for the boot THEN plug the HDMI cable back in (once you see the time your receiver is booted)

It happens more often with boxes that are left on during the night, but it could happen with any box that is plugged via HDMI, its one of these boxes failings.
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