SOURCE: Sharp LC-52D62U HDTV won't tune-in channel 21.
I finally got Sharp to repair the TV. It was under warenty but they said if the problem wasn't with the TV they were going to charge me for the service call. I told them I wanted a new TV. They sent the tech instead of a new TV. He replaced the turner card and it worked!! Now I get all the channels as well as channel 21.
SOURCE: TV No Picture
My 32D40U would turn on for 5-10 seconds (Please Wait would appear) and the screen would go black. Sound Normal. It would also sometimes do this after running 5-10 minutes. I read somewhere that the inverter board would come loose and lose proper ground. I took the set apart, removed the board, and cleaned up the grounding points. I reassembled using some copper paste on the ground points and LockTite on the screws. I used some contact cleaner on all the connectors going to the board. I noticed two cables that are covered with copper shield tape where too tight at their connectors and repositioned the tape to give them some slack. The problem hasn't occurred since the fix.
SOURCE: Sharp Aquos LC-65D64U Picture Quality
You need to change your TV's settings and enhancements. Directly from the store and out of the box, the settings are adjusted for easiest sell in the store. That means that:
Your contrast is cranked to 100. Move this down to 50 to 60.
Your brightness may also be cranked up high. Lower it to a level nearer the middle range but not so dark as to lose detail in the shadows.
Your TV is set on "Dynamic" or "Vivid" mode. Pick "natural" or "normal" or standard.
Your sharpness is at least on, if not cranked up. Turn sharpness down or off, and the same with "Edge Enhancement" and "VSM", all to off.
Lastly, I bet you upgraded size and you are now sitting too close to the TV. Roughly, if you are sitting closer than 130 inches (about 11 foot) you might do some rearranging or save some money and get a smaller TV.
SOURCE: can't get all my cable channels
what cable company do you have because you should have a cable box because only a cable box can scramble the frequency so you can get the channel you subscribe for
SOURCE: the power light and OPC light flash but TV won't
try making sure tht tha scart or HDMI cable is securly fitted (depending on which one u using) and this suld solve loss of picture or sound
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