There is a black box that shows up on the screen within 5 minutes of turning on. At first I thought it was the cable box but once that is turned off the black box is still there. There is still a picture behind this box and the sound is fine. It is about 8 inches wide and 6 inches tall on the bottom and is completely black no writing or anything. Has anyone had this problem before? How do I get rid of it? I have only had this television for a little over a year and really don't feel like replacing it. THANK YOU for any solutions you might have for me.
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If you have cable then put the cable wire directly in the TV, bypassing the cable box. If the pix is Ok it proves that the problem is the cable box. If the problem is still there then it proves the the TV needs parts inside.
it might be due to your cable operator giving important message.
please reset tunning once or auto tune.
give service code for opening menu.
if you do notremember give me system control ic no. so i can send you
your problem is in the horizontal sweep and its called blanking. it happens on mostly zeniths sets as Ive seen it a few times and the only waty to fix it is to replace the entire chassis as there are no parts for zenith available just the module as a complete assy. Basicly, The blanking is suppose to only blank the top and the bottom of the fields of the screen that you don't see but it misfires and causes all sorts of lines, squares, and boxes on the screen. When i first was told of this problem i thought the same exact thing?? About the closed caption but the set came into the shop and didnt do the problem. I thought the customer was seeing things. Then finally on night late I CAME BACK TO THE SHOP TURNED ON THE BENCH AND THERE IT WAS!!! i SAW IT WITH MY OWN EYES!! I replace the Module and all was good. Thge repair was about 175 bucks. Good Luck in your repair. Oh this should not be attemted by a handi person, as there is dangerous high voltage inside these sets.