Originally Posted by kellybob
The Eco sensor darkens the picture when the environment gets darker. It is in the System section of the menu, Eco Solution. I like this feature overall, assuming it is set up properly. You set the minimum backlight level for when it is dark and the level in the picture menu is what is used when it is bright.
I use 5 for the minimum level, default is 2 which is too dark for me in a totally dark room. Sometimes the picture will go back and forth between light and dark maybe two or three times before it stays one way, which is annoying, but overall I still like the feature.
I am not sure where the sensor for this is. I originally thought in the control pod, but I am pretty sure it is not there. I do have the service manual which does not provide much information at all. No schematics at all. Basically just tells how to disassemble and replace boards. Anyway, there are a few wires that go from the power supply board to behind the panel. I think the light sensor is in the upper left side of the panel when looking at it.
It could be that the light conditions are close to dimming the picture down and you blocked the light hitting this sensor. I don't think the ECO sensor is turned on by default, so this might not be the issue.
This is the only thing that I am aware of that could do this. There is the motion lighting feature which I have not used that dims the display depending on motion that is available in standard mode. I use movie mode for the tuner and PC mode for the PC and the other inputs because PC mode has a better picture (4:4:4) even though it does not use the correct color space for everything. And PC mode gets rid of the backlight shutting totally off for fade to black which I found annoying. There have been two firmware updates since I got mine, and I know this issue was addressed. When I first got it, the backlight would go on and off when it should have stayed off. I think this is fixed, but have not tested because PC mode does not allow this feature and PC mode looks so much better for my PC.
Ok thanks for the info. I think I turned off the eco sensor. I have the picture in nature for now and think it looks ok. I have not noticed it happening since I made that adjustment.
I am happy that I was able to get the TV to hookup to her wifi which is great. At first on first try did not do it correctly but it connected and I made one upgrade to software I think it was for version ending in 1012. It went from maybe version 009 to 1012, you might know better. This upgrade showed up after connection was made.
I went to usa samsung and did not see any other software upgrades. Do I need to go to samsung uk since I googled it and read something about a upgrade to software for better connection to get the internet to work correctly on TV. I do not think I need to do that since it is getting wifi.
I am not to sure I want to get into any service menus since I might mess up tv?
Do you know of any calibration setting that anyone has posted for the TV. I know you said you are using a input labe as a PC to get better picture. One other thing is that her rural cable system let two ota channels to show up I think. Since again not having hd cable these two channels appear to be labled as ota channels. A cbs one that says 22-1 and nbc 28-1 which makes me believe this id true.
again appreciate your help.