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If this line does not go all the way across the screen then I will bet you this is an easy fix. Press the menu button on the remote control. The menu will hopefully show up over-top the black. Search your menu for the closed caption setting (usually under audio settings menu) and turn closed caption OFF. Hopefully this fixes your issue. Cheers.
Brightness settings on any TV made since the early to mid 90's (besides tiny cheap B&W TVs) will have the settings in an on-screen menu. Sometimes the menu is accessible through buttons on the TV itself, but always accessible through the remote control. If your TV does not have the ability to get to the settings menu from the TV controls itself, you will need the original (or compatible) remote control for the set, there is no other option.
It could also be that the set is just dying; it's an older set, and certainly would be a possibility.
First is the cable active? If so make sure all cables are connected propperly from the outside sorce to the tv. If all of the above are ok check the remote menu to make sure that it is acsessing the correct inport source:cable,antenna,hdmi,etc. Also with the change over to digital you may have to have the tv rescan all availlable channels.
Good day sir hi, the symptom you just describe is a nightmare for us technicians, we call it INTERMITTENT problem. we cannot diagnose the device until the unit mulfunction permanently which is much more easier, but it can repaired.
What we do is measure voltages when the tv goes systematically bad. or if its modular, replace the entireboard.
The problematic section is the power supply section, but this can also be the horizontal output section. Check power transistors and capacitors. CHeck also the switching regulator IC, that controls the switching.
But a good service shop can find the fault easily if they have encountered the same symptoms, call a service shop if they have a solution on your TV problem and inquire about the service fee. call several shops until you get the best bargain. = )
you can hook it up thru av input..what i mean is the red white and yellow wires hook wires into the OUTPUT on box and the input on tv then change tv to the input u hooked them to..for example if u hooked them into av1 then turn tv to av or hiy input on remote
1get the original remote control
2get a universal remote control and maybe you can get menu from there.
3get menu on front panel of the tv and search for the option.
4send the tv to autoprogram. Good luck!
The Sharp TV website has a number to call to answer your questions 1-800-BE-SHARP. They also can be contacted by E-mail (click on Sharp Support Center and scroll to the bottom of the page for instructions).