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I have a samsung LA23R51B LCD TV. For the first 5 to 15 minutes after startup I am unable to obtain a high definition picture. The picture is badly broken up and accompanied by "No Video Signal " constantly appearing. Then gradually the picture clears and normal HD transmission commences and does so until I switch the unit off, and the whole things starts allover again . I have a DGTEC DG-T80SD set top box coupled to the TV. I would be grateful for an opinion on my problem. With thanks, Kevin.

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Posted on Jan 02, 2017

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SOURCE: Toshiba 42H83 42 in unstable video

Probable PIP sister board.Moderate skill & some tools needed.Advise==get a senior tech near you.

Posted on Sep 29, 2007

  • 1 Answer

SOURCE: Magnavox Projection DLP HDTV

I replaced my lamp yesterday 3/26/08 and still have the same problem. I kept turning it on / off before I replaced the lamp. 10 or so tries and it would stay on. I believe this eventually burnt out my lamp. Fans are clean/ new lamp, same problem. Another forum I read mentioned a firmware upgrade? Any advice.

Posted on Mar 27, 2008

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SOURCE: no audio

I will try to explain this clearly.

Make sure that there is sound leaving from the connections on the top box.

Check that the audio cables are connected to the associated audio input for the video at the rear of the set. Make sure that there are no other shared inputs for the same input. With shared inputs, only one can be the default reference for input.

Check the menus in both the top box and the TV set to make sure that all setups are correctly done.

Jerry G.

Posted on Apr 14, 2008

SOURCE: Toshiba 46In HD Rear projection TV Vertical lines on screen

We also have vertical lines with our JVC 62"... turning it off and letting it cool down is the only solution. For us, we know it's a problem with heat. We simply are wits end on fixing it. added two additional fans, a exterior fan to blow heat away from the back of the tv, pulled everything else away, etc.... Anyway, goodluck.

Posted on Apr 30, 2008

  • 128 Answers

SOURCE: Sound only works with HD, not SD

Check the setup menus of the Insignia TV, as most sets have an advanced setting hidden deep in the setup menu to use the HDMI cable for sound - OR- use component RCA inputs for sound. My Philips TV has this.

It's odd that this only shows up for SD content...I would see if there is a firmware update available for that from the manufacturer. The one thing that you see lots of firmware fixes for are HDMI issues.

Posted on Oct 16, 2009

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