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General discussion

New HD TV--screen goes black when I change channels-why??

by elanwhip Jan 3, 2011 12:59AM PST

I need help with this--I haven't gotten much help yet. I have a NEW flat screen HD tv. We have a new DirecTV HD satellite also. I don't understand why when I change channels--the screen goes half black--it does show what station I want. Oh yes, now it goes like I described above--now it does that then goes all black before the channel changes. I want to know why and what I can do to hopefully resolve this issue. I would appreciate any and all help with this. Thank you very much. I have an Insignia NS-32L550A11. I have only had it for a month or so. I asked DirecTV--they said it isn't on their side--I asked Insignia--I got about the same answer. I am not a whiz at some of this stuff.

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2 Posts

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Many don't want to know the fix.

by r. proffitt Forum moderator Jan 4, 2011 12:34AM PST

Some boxes and some TVs do that. Not all. Since you can't change the DirectTV box you'll have to change the TV.

Then again you might try connecting with component cables to avoid the HDMI and HDCP handshakes. This is no offer to write an article about HDMI or HDCP.
Bob

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why the screen goes blank when you change ch

by alphatech335 Jan 7, 2011 2:14PM PST

hello im a field tech for dtv, to answer your question the screen goes black when you change ch because it is switching from 13volts to 18volts and back again. because you have hd it is also changing from 13volts with a 22kilohrtz tone as well as 18volts with a 22 kilohrtz tone. there is nothing wrong with your tv or the directv reciever this is normal, remember you are bringing down a ch from space. try thinking about tvs before remotes, they would always send a kid back and forth to change the ch. well every time you change the ch you are sending a different kid and if you are ch surfing you are running these kids back and forth pretty fast they are gonna get tired and go slower. when you change ch you are picking a voltage specific to a ch sending up the coax to your dish that is reciving the signal from space its gonna take aprox 5 to 10 sec max to tune to the next ch if it takes longer you may need a software download. hope this helps

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