Question about Samsung LN-S4051D 40 in. LCD Television

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LA40R71 problem... I have a Samsung 40" LCD TV, model # LA40R71. I've had it for one year. Recently I've noticed that on the left side of the screen, about one-third, the color is duller in some scenes. I have ruled out the sattelite receiver, and have changed the input cables, so it's none of these causing the problem.I simply have the receiver hooked up through video cables; one yellow, and the red and white audio. What's odd is that the problem is very bad when connected to the AV1 source ports, but much better when I connect to the AV2 source ports. Even in the AV2 ports, it's still slightly noticable. It's most noticable in dark scenes, especially connected to AV1.Does anyone have an idea of what is causing this? I'm currently living in a country where the customer support is almost nonexisitant, so I'm hoping to at least determine a probable cause.Thanks, Bryon

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  • Krustov Dec 30, 2007

    I have the same problem, and it appears regardless of the input.  Cable box, Xbox, etc.  My TV is just over 1 year old, but it's had this problem for at least 6 months.



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Posted on Jan 02, 2017

  • 244 Answers

SOURCE: AV1 / AV2 Connections don't work

No picture or dark picture
Check R516 (56Kohms, 0.5w) or R517 (27Kohms, 0.25w) for high
Will not come out of standby, no picture
If at power on voltage on pin 37 of the micro drops low then reverts to 5v suspect memory chip ICA07 (Toshiba 23319016)
No picture No sound
Faulty IC TDA6107q on crt board
No picture on e-e, I.F output ok
This was due to switching chip IC3901 (M51292FP) on the scart panel

Posted on Nov 26, 2007

  • 2 Answers

SOURCE: blue tint

I had this problem as well. I tried adjusting the voltage, but it only caused different color problems.

If you using HDMI, try checking your HDMI connection. I found that by I could simply "jiggle" (yes, that the technical term..he he) the HDMI cable around - while the cable was fully/completely attached to the TV - until I found a position where the color issues went away.

Now, the only problem is that I have to go and "adjust" the HDMI cable from time to time as the cable seems to shift over time. I'm thinking there is a problem with the HDMI input board on my tv (42" plasma - HP-S4253). But, since I'm over 3 months out of warranty, I'm not about to shell out big bucks for a new board. I can live with adjusting the cable from time to time.

Posted on Feb 07, 2008

  • 1 Answer


tv start working on its own.

Posted on Jun 27, 2008

  • 1 Answer

SOURCE: samsung lcd ln46a550pf3 no sound from hdtv reciever

ok your tv does not come with the very best sound, you have to get a receiver 7.1 or you can use the optical wire , that's if the system you are using has that option.

Posted on Jun 28, 2008

  • 1 Answer

SOURCE: I bougth a lcd samsung 40 inch tv. I cannot connect my gamecube

You need to get a special scart lead which you can connect your red, white and yellow leads to then connect the scart lead to your tv it should work then

Posted on Feb 01, 2009

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