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PN50C550 Display trouble

by PHIBIZ / December 13, 2010 9:36 AM PST

My PN50C550 is having trouble adjusting the picture size to the type of signal it receives from my Scientific Atlanta Explorer 4240HDC cable box. When I first turn the TV on, its generally fine. But then when I switch from a 1080i channel to a 720p channel, or vice versa, or from HDTV to SDTV, the TV gets confused and zooms and offsets the picture in a way not suited for the signal thats coming in.....and part of the picture is cut off either on the bottom or right, or both. My Panasonic S2 1080P HDTV handles the signals from the same cable box through same cords and from same output just fine.

Is this a known Samsung issue? Samsung support online and on phone was no help. They want to send someone out.

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PN50C550 Display trouble
by Samsung_HD_Tech Samsung staff / December 13, 2010 9:58 AM PST

PHIBIZ,

Are both the TV and the cable box set to 16x9?

Often times, some cable boxes may have an AUTO setting for resolutions. Pick 720p or 1080i as the output resolution in the cable box and see if that helps.

--HDTech

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PN50C550 Display trouble
by PHIBIZ / December 13, 2010 11:21 AM PST

The cable box outputs 1080i to the TV when set to channels that broadcast in 1080i. The cable box outputs 720p to the TV when set to channels that broadcast in 720p. My previous Panasonic S2 1080p had no trouble detecting either signal and then appropriately displaying that signal. Why cannot the C550 so the same thing?

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PN50C550 Display trouble
by Samsung_HD_Tech Samsung staff / December 13, 2010 1:25 PM PST

PHIBIZ,

That I can't answer. It would take intimate knowledge of both. I only have intimate knowledge of one.

Try setting a resolution (rather than AUTO) in the cable box to see if that fixes the issue. The box itself should give the option to give the same resolution, regardless of the source broadcast.

The other option might be to see if the cable box needs to be refreshed or unpdated. Often times, firmware updates are available for the box's hardware, and can be installed while you're on the phone with the service operator.

Assuming of course that this doesn't happen with other sources, like a game console, Blu-rays or other devices that also can vary resolution outputs.

I've seen a few of these issues, and it's usually not caused by the TV, but by settings, an update, or in some cases, a box replacement. Why that is, I have no idea. But I'm offering what I do know.

Keep me posted.

--HDTech

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