Samsung forum

General discussion

Samsung LN46A550 Blinking Commercials

by petunia908 / May 12, 2009 11:21 AM PDT

Our HDTV, Model LN46A550, cable provided, blinks on & off during certain commercials. (usually the same commercials) The screen blinks black, shows the commercial, blinks black, etc. More often than not, the following commercial will do the same. Commercials only. Can someone explain why this happens & if there is a solution to the problem?

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Resolution change?
by MrDerbyUK / May 12, 2009 5:02 PM PDT

Hi

See if you can hit the "info" button to bring up the resolution of the TV for the commercials. I wonder if they are in different aspect ratios (unlikely) or if the TV is just loosing track of the ratio/resolution.

What is the picture source and is it going through any other appliances (AV amp system for example)

Thanks

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Samsung LN46A550 Blinking Commercials
by Samsung_HD_Tech Samsung staff / May 13, 2009 3:55 AM PDT

petunia908,

I'm guessing the same thing. And also guessing that your television is hooked up directly to the co-ax from the wall and without a box, correct? Often times the boxes will correct or convert these subtle changes before sending the signal to the television. Otherwise, these changes have to be detected and processed by the television itself, and result in this.

Keep me posted.

--HDTech

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blinking commercials
by petunia908 / May 14, 2009 11:03 AM PDT

Resolution shows 1920 X 1080i - hooked up to cable box through DVD player.

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blinking commercials
by Samsung_HD_Tech Samsung staff / May 15, 2009 11:45 AM PDT
In reply to: blinking commercials

petunia908,

Try pressing the remote's INFO button on the remote during a commercial after it blinks. It may be that the cable box is still transmitting the same resolution (upconverted in the box), but I'm curious to see if that's the case.

It sounds like you might have a setting on the cable box that allows "any resolution" to be transmitted. If the resolution changes, I believe that to be where the blinking occurs. If that's the case, you'll want to set your box to transmit 1080i signals ONLY, or even 720p and above, meaning that regardless of what is transmitted to the box, the box will ALWAYS output a stable (same resolution) signal to the television, and reduce (or eliminate) the blinking.

One last question, if I may: Why are you watching a cable box through a DVD player? I believe that it's possible that you may be able to solve this issue by hooking your cable box directly to your TV without going through the DVD player.

Keep me posted.

--HDTech

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