When I try the auto focus on my Samsung HCM553W tv, it says "No Sensor Data" and goes back to tv. The picture is not bad, this feature simply doesn't work. This problem started after the tuners had been replaced.
ISn't there a remote key sequence to manually focus the screen?
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Re: auto focus problem
The auto focus is not actually focusing the tv. When it is running it is adjusting the convergence. Most likely the repairman that replaced your tunerdidn't plug the sensor wires back in. I would call him back out and have him hook it back up.
There should be a convergence menu in the tv. Use the samsung remote and go into the menu and look for convergence.
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Hi, convergence amps have blown, if you have soldering equipment and are proficient at soldering & un-soldering you can make the repair if not you need to calll a tv tech, there is also an alignment that must be done with the original remote once you install the IC`s, if your capable of this get back to me and I`ll look up the parts for you, video-tek
There will be two big Audio Amplifiers on the convergence board, they will say STK382 or some such STK number on them. Look for burned connections on the bottom of them and resolder any suspect connections before anything else. If that doesn't work, get an ohm meter across the various outputs and look for one of them with vastly different readings than the others and change the chip with the funky readings. Lastly look for the connection to the edge sensors on the sides of the screen about half way up. If that wire is disconnected it will give a very bad picture that is very similar to what you are describing.
try going to the antenna input from the menu screen, then trying to do the auto focus, or manual focus. My Samsung won't let me do the auto focus unless I'm looking at the antenna for some strang reason.
Hello, I am a Samsung TV repair man. What happened was one of your bulbs in your tv has burnt out. you have to contact your samsung repair phone line. how old is that tv? do you have a warranty? if you do, it might be repairable for free. I hope this info is useful!
The auto self focus screws up if the picture does not remain constant or close to it while focusing. It is designed to self focus every fifteen minutes. Go to menu and then setup and turn the auto focus feature off. I have had mine off for the past year and have had no problems. If you slide the bottom portion of the remote down you will see a self focus button. My suggestion is to put a DVD in and hit the pause button during a scene and then hit the self focus button. It should align back up and may take a couple of tries. (If you have an aftermarket remote, just enter the menu and then setup and you can activate the self focus feature, just don't turn it to auto focus!)