Question about Samsung Televison & Video
If the set is still in warranty I would get a shop to fix this. If not and the set is over 5 years old and had a good picture in the past, I would suspect failing capacitors in the vertical circuit. On older sets, you could adjust this out with controls located on the main circuit board. With these newer sets, you would have to adjust it via service menus using both the remote control as well as the video button on the TV itself. For instance, on a model PF2720 which has a CH-16CD chassis (may or may not be the same as yours) you would have to first decrease the volume to zero then press both the mute button on the remote control and the video button on the TV at the same time to get into the service menu then by using the menu select buttons on the remote control go down to where the symbols S2 VAM comes up, and that setting when adjusted would vary the vertical height of the picture. It might also be necessary to adjust the VSH to shift the vertical up or down so there are no lines at the top of the screen and you could still read the bottom. When finished, you would have to press the timer(?) button on the remote the key that looks like an apple with a stick in the center to get out of the service menu. Note that if you try this, do not tamper with any other adjustments, or you may never get the set back to normal again. Since I do not have the instructions for your particular set, you may not even be able to get to these adjustments by using this method. If you have a TV shop nearby, they may be able to do this for a nominal charge as they would not have to take the back off the set to adjust it. If you do decide to do this procedure, write down the values before changing them in case you have to back track to where they were.
Posted on Dec 09, 2006
This problem is normally the Vertical filter capacitors. You need to have them changed before it burns out the Vertical Chip.
Posted on Jan 07, 2008
SOURCE: Sony TV shuts off automatically
1.Check first if the shutdown of your tv follows a certain period of time. Example after using it within 12 hours it automatically shut down. If so the the matter is only on settings of your tv.
2.But if your tv shut down at an irregular time the problem is in your board. In this case if your tv still work but still shutting down automatically its better not to use it so that their will be broader damage.
3.The most common defect on this case is loss contact of components due heat and mechanical undergone during the usage of the tv. If you know how to resolder board, try to resolder the components specially those who are showing loss contact. You can recognize it because a good solder one has shinny and no round like on the soldered surface.Try also to resolder important parts such as IC's and transistors. note : a good resolder needs to be done in order to avoid problems and damage.
4.Another possible cause is the tack switch for channels,menu,power and etc. You can remedy it by spraying it a contact cleaner.
5.If the problem still going even after the procedure its better to bring it on reliable and trusted service center.
Posted on Jul 11, 2009
Please contact below address for Madras branch as they are authorised Bush service centre
Location : U/12 A, Yogi Complex, New Rander Road, Surat - 395009 Phone : (0261) 3066848, 6548278 Regards//Ravin//London
Posted on Sep 18, 2010
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