How do I get my controls on the tv to work?

We have 18 samsung syncmaster 400mx/3 40 inch lcd tv's that we use in our entertainment center. The remotes don't work, and the controls on the tv's don't work. I can not ajust the color settings, turn up the volume, or change the channel. The only control I have is on and off.

I just fixed this very same problem. It is the capacitors are the problem. However, I think that if you have some minimal skills with soldering, you can fix this yourself. You just need to take out the system board, then the power supply parts are on the top right. The bad capacitor(s) will be bulging at the top and possibly have some brown stuff coming out. The ones that go bad are 1000microfarad, 10V, however you can replace them with higher voltage. I got 35V caps from radio shack for 1.59 each. You just need to solder out the bad ones and then put the new ones in and solder. Remember that the negative end goes on the side with the bold black part of the circle on the system board. Then just cut off the extra ends of the capacitors. If you are capable of doing this yourself, you will spend at most 6 dollars instead of however much a technician costs.

since you say you have had it just a short time
call samsung and request service for your set this is a problem and will get worse
if its just a couple months old parts are still in warranty and not sure of labor there is a warranty statment in the owners manuel

This is a tough one, I can come up with possibly 2 solutions, 1 being that if the batteries are low you will sometimes lose partial control of some of the functions on the remote, and if that is not it, then I have another that this one happened to me once, The infrared on the TV was not picking up the volume button I was sitting at an angle, so everytime i sit in that chair everything works but the voulume control i have to point it right at it on direct line and not from the side...Hope this helps...Steve

Press tv on the Sky remote

press and hold select and red until the led blinks twice
type in 0 0 6 0
press the power button, if the tv turns off then the press select and the remote should work all the tv functions.

If the tv does not turn off then press tv then the power button and keep doing this until the tv turns off, once it turns off press select and it should work.

If you have any problems let me know