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Poor picture quality on Samsung LNT405 LCD TV

Hi,

I purchased a 40" LCD Samsung television about a month ago. The model according to Future Shop is LNT405. On the back of my tv it says it's model LN-T405HA (not sure if that makes a difference or not). I am using a regular motorola cable box instead of a HD box. The picture isn't very good. It almost has a snowy look to it. Any suggestions on how maximize or better my picture until I decide to upgrade to an HD box? I kept the picture at the factory setting b/c I wasn't sure what settings I should try & alter. Any suggestions???

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Posted on Apr 29, 2017

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Posted on Jan 02, 2017

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SOURCE: Picture quality and sound

than the tuning coil of circuit,like 39mhz coil or other circuite related with I.F. and detection section coil or any p.f.will be damaged if it should b currect than replace the tuner

Posted on Mar 07, 2007

  • 280 Answers

SOURCE: Best Picture Quality

The set may not be at fault. If you are on cable some channels are still in anolog and some are digital. if you are on a nolog channel the picture will look preaty bad compared to the digital ones.

Posted on Jul 03, 2008

  • 5 Answers

SOURCE: Best Picture Quality

Check this link out. I think it should give you all the info you need for optimal picture settings.
http://help.cnet.com/samsung_LN_T4061/9602-12576_39-0.html?messageID=2510125&tag=tip-2510125&kw=samsung+LN-T4061

Posted on Jul 15, 2008

  • 14 Answers

SOURCE: sound issues Samsung series 6

The speakers that come with built into the units are very limited at best. Better than the old 4" speaker that came in TV sets from the old days, but not by much. Ask if you are not expecting more out of the output than is reasonable.
I would offer that the true design intent is to hook the HDTV into a home surround system, a home system is optimized for and designed for your listening pleasure. I'm guessing that your HDTV is an LCD with a sound bar at the bottom, if so it is for general use and not intended for critical listening.
I have a 61" Series 7 DLP and even with larger built in speakers, the difference is night and day between my surround sound system and the HDTV stand output.

john



Posted on Aug 20, 2008

  • 22 Answers

SOURCE: Red Vertical Burn Line on LCD Screen

Try changing the picture setting on the television rather than from the picture box.

Posted on Sep 09, 2008

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