The television has worked well for more than 3 years. Suddenly there is a dark square message box covering the middle of the screen about initial set up and auto programing of channels (CH+ auto; CH- exit). If I do the necessary steps to auto program the channels, it has no effect, and the box remains. If I try to use the CH+ or CH-, nothing happens. Any suggestions as to removing the message box?
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This tv have a problems with a board that call T-CON decodering board.This T-CON decodering board sit at the bottom in the middle of the LCD screen panel.This T-CON decodering board,decodering the tv incomming broadcasting tv signal before it go into the tv LCD screen panel to produce pictures.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-CON decodering board for the replacement.
the screen bias needs to be turned down-ehind the front cover which is behind the grille there is a small black square about 3 inch square 6 little knobs sticking out 3 say in small letters screen and 3 say focus, don't adjust the focus just the screen for the coresponding color that shows up when picture is dark.best way to do this is darken the room and put it on video input with no signal if lines are white slowly
adjust 1 color after the other counterclockwise untill
lines disappear if only 1 color shows then only adjust the knob with the matching color. this is a very fine adjustment, to much will make your auto focus stop working. check it after you are done
Turn off the closed-captioning. If it's set for text mode, the screen will blank out an area for the text to be displayed. On channels or programs where captions aren't being used you won't see any problems, but other times you'll have the mysterious black box. Many TV remotes have a single button to control captions, so it's easy to get into text mode without knowing it.
Have you tried magic focus? if that doesn't work replace the pcb convergence board,, It costs $96
and takes 10 minutes to replace you will have to manually line up your
convergence afterward as the settings go to factory default. Everyone
that owns this set has or will have to replace this part within 3 years http://www.samsungparts.com/search/search.asp
Or Vance baldwin online
Part number bp94-00155a
you have accendly turned on closed caption. the closed caption you have tured on is not the normal closed caption we are used to . it is called colsed caption text. either on your remote or in you manu, find the way to turn off cc & you should work ok.
good luck.
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