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After the screen goes black, do you still have sound or you have none but a blank screen? If you have no picture and sound does the power LED in front of the tv indicate that the set is on, or does it go into standby? Please provide this info so that I can help you with your problem.
Return it to Amazon.com.Get a replacement tv.This tv have problems with it 1 or 2 long LCD inverter boards,it dying going to be dead.That why u have only a flashes of a picture only a few second,than died,just black screen lelf and have sound.Or talk to Amazon.com customer serviced to get ur tv a warrenty repair.
Ur tv the LCD inverter board it dead.The LCD inverter is the board that help the LCD screen panel to get a backlight to produce a picture,the LCD inverter board is dead and it not working anymore that why u only get 8 sec.of the picture.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replacement.It a long board in shape.
Hello, I just posted this to another user's question, and you might find it useful, too.
I have a pile of these in my shop. Unfortunately and
usually, a backlight lamp is bad, and the inverter board is damaged
when it goes out. The backlight lamps are sealed inside the panel, so
the usual method of repair is to replace the panel. If you turn
the lights off in the room, then turn the tv on, you will probably see
a momentary flash of light from the backlight trying to start up. The
lamps can be replaced, but the option is not really cost effective
given the amount of time it takes to replace them/very delicate nature
of the lamps/availability of the lamps/cost of the lamps. Replacement
panels might be available, but you'd have to use a TV shop for
reference or call Sanyo directly. These units also have a history of
power supply heat damage, so if you don't see the momentary flash, it
could be the power supply. But the momentary flash is the dead giveaway.
Yes it sounds very much like it is simply in need of a tuning. Also if you do not feel comfortable repairing yourself, this is a very simple fix that can be done at most any electrical repair shop and usually doesn't cost too much.
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