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LN52A 850 LCD TV shuts off and then turns on automatically

by midkiff2112 / February 14, 2010 5:25 AM PST

My tv just started to turn itself off and then turns on and is starting to happen more frequesntly. Its as if someone is sitting on the On/Off button on the remote. I have tried to track this to see if there is a pattern but haven't found anything yet. Nothing is hooked up to it other than the cable box which has had no effect from what I can tell...disconnected the cable from the box and ran directly into the TV. Tried that and still shutting off and then on by itself.

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Having Same Issue
by d_anconia / February 14, 2010 12:25 PM PST

Hi, I just bought a Samsung LN52B630 and it seems to be having the same sorta problem. Also if I put it in "Game" mode it will turn off, turn back on, and go back to a different setting ("Dynamic").

I think I read somewhere that Samsungs are known to have some issues with the capacitors so I would think that would be the first place to look. I'd give Samsung a call though cuz you and I paid good money for these things and deserve to be able to enjoy our products!

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Same Issue
by SRDelaney / February 16, 2010 5:06 AM PST
In reply to: Having Same Issue

Hi-
I posted a couple days ago and seem to be having the same problem with my 46" LCD (LNB640).

I don't think its the cable, because when I rewind my dvr I see everything that I missed while the tv was "off."

Also, either the tv or the cable box makes a really light tapping noise when it happens. Do either of yours do that?

Could it be the cable not running quickly enough? Could it be an actual problem with the television?

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Same Issue
by Samsung_HD_Tech Samsung staff / February 16, 2010 5:30 AM PST
In reply to: Same Issue

SRDelaney,

A tapping noise in the cable box?

What happens if you turn Anynet+ options in the TV menu off?

--HDTech

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Re
by SRDelaney / February 16, 2010 9:52 AM PST
In reply to: Same Issue

Actually- I think the tapping comes from the tv itself when the screen goes black and the sounds off for about 2 seconds. Then everything returns to normal.

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Having Same Issue
by Samsung_HD_Tech Samsung staff / February 16, 2010 5:29 AM PST
In reply to: Having Same Issue

d_anconia,

It sounds like your television is in SHOP Mode. Hold down the EXIT button on the remote for 12-15 seconds until you get prompted to reset. Select YES, and the television will go through the Plug and Play settings. Select HOME rather than SHOP, and then your settings will not revert back to Dynamic every 30 minutes.

--HDTech

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LN52A650 w/Similar Issue
by otisskavier / February 16, 2010 10:12 AM PST

Our LN52A650 that is "conveniently" 15 months old and just out of warranty has developed a similar power cycling issue. The problem may have been around for a while, but we just noticed it last month. For us, the problem happens after the TV has been on for an extensive period of time. For example, if it's a lazy Saturday and we turn the TV on at 8:00AM, it will start to power cycle around the late afternoon if it's left on all day or most of the day. It seems the TV can't handle more than 8-to-10 nearly-consecutive hours of use. Any ideas on what the problem is, or are Samsungs just not meant to be used for more than a few hours at a time?

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