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Author Topic: Annoying LCD LG tv picture problem  (Read 3390 times)
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Ragnarok
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« on: December 09, 2007, 12:13:53 AM »

My wife and I just recieved an LG 20" LCD tv (#20LS7D) for a christmas gift to replace out aged 13" crt.  We set it up and threw in a movie (Man on Fire WS) to give it a test run.  Right away we realized that the picture is quite dark.  The LCD backlight was set to max and the screen brightness can really only be adjusted so far before it simply causes black to turn white. We could barely see anyones face -particularly Denzels- during most of the movie. Ok that is the first thing, and maybe it was just the movie.  What really got annoying however was during certain scenes that had lower light levels the whole screen would fluctuate between light levels, as if it was automatically changing power levels (low power adjust was set to 'off').  For example if it was night out and the scene was changing from a lit street to someone hiding in a dark alley, the tv would flick to an even darker setting in the alley until you couldn't see anything.  Even the menu screen would go darker when I had it open during these scenes.  I haven't found any settings that prevent this and the manual seems pretty usless for troubleshooting.

Anyone have on of these tvs or have come across a similar problem?  I've never experienced anything like this on my PC monitor(though its a Samsung bnot LG) an am not sure what to do. If its going to be doing this all the time I'd rather have the 13"crt.
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Ragnarok
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« Reply #1 on: December 10, 2007, 02:38:31 AM »

After watching a few more movies, it seems to be the design.  The tv simply drops the light level during dark scenes, the result being almost total blackness on the screen.  I can't find any way to stop this.  What a stupid and obvious design flaw.


Screen goes light.  Screen goes dark.  Screen goes light.  Screen goes dark.  Screen goes light. Screen goes dark... retard retard retard
« Last Edit: December 10, 2007, 02:43:36 AM by Ragnarok » Logged
rickfc
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Why so serious?


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« Reply #2 on: December 10, 2007, 05:54:05 PM »

Can you return it to where the giver got it from without a receipt?
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Laner
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« Reply #3 on: December 10, 2007, 06:20:17 PM »

Sounds like there's some kind of auto-level compensation going on.  I'd go into the monitor options and turn off anything "auto" - auto color, auto level, noise reduction, black correction, etc.  See if that helps.
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Ragnarok
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« Reply #4 on: December 15, 2007, 01:41:41 AM »

Quote from: Laner on December 10, 2007, 06:20:17 PM

Sounds like there's some kind of auto-level compensation going on.  I'd go into the monitor options and turn off anything "auto" - auto color, auto level, noise reduction, black correction, etc.  See if that helps.

Thanks for the advice. I guess its just the way it is .  What a piece of $550 junk. Do not buy LG.  Fortunately, the purchaser is sending us the receipt.  It really is too bad.  It was really thoughtful of mum-in-law, but I just can't watch different shades of black and call it entertainment. icon_frown
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Destructor
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« Reply #5 on: December 15, 2007, 01:34:46 PM »

Quote from: Ragnarok on December 15, 2007, 01:41:41 AM

Do not buy LG.

And I've had a LG CRT for years now and I've loved it. Still, seems like a very strange option to have enabled (with no way to turn off) on a TV set of any sort.
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kronovan
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« Reply #6 on: December 16, 2007, 04:56:05 PM »

The 19" Sharp (LC-19SB24U) LCD HDTV is a decent unit; model number I quoted is the Canadian number and might be different for the US. I don't know where you live, but if you're in Canada like me you can pick that set up at futureshop right now for $349.00.

BTW I've seen what you've described on some of the Isignia brand LCD's, so I'd be careful about buying any of their models.
« Last Edit: December 16, 2007, 04:59:25 PM by kronovan » Logged
EngineNo9
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« Reply #7 on: December 16, 2007, 05:39:16 PM »

I have an Insignia 32" LCD and have had none of those sorts of problems.  In fact, I've been quite happy with the TV, especially considering I got it on sale for $500 a few months back. 
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coopasonic
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« Reply #8 on: December 17, 2007, 03:38:29 PM »

This is from the best buy product page:
Quote
High brightness (450 cd/m˛) and dynamic contrast (700:1) for a clear viewing experience

I've never done any real research but comparing that to a couple other LCD TVs on bestbuy.com, that sounds like a pretty awful contrast ratio.
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