Question about Sharp Aquos LC-32GD4U 32 in. LCD HDTV

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Sound but no picture

Over the past 2 days, the picture on my Sharp was showing break up that looked like test pattern bars then it would resolve. Last night the picture went black but the sound is still fine. Remote changes channels as the audio changes each time the remote is pressed, just nothing but black picture.

Have surge protector, have antenna, have checked all connections for fit. Is it a video card failure?


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  • Anonymous Sep 21, 2008

    Our Sharp is at least 3 years old, and without problems until today. Watching the telly, perfect picture, and then all of the sudden the is a wide black [with thin stripes] running on the horzontial. Have tried turning the set off and waitng for 15 minutes, without results. Is this the end? Please help.

    Chrissy

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LCD TV's ought to be very reliable but they are still having quite a lot of troubles like this. The power supllies tend to go out, however because the sound and tuner are still working here, the main supply is ok. Could be the back light has failed or the part of the power supply feeding the backlight.
The other common problem we see is bad solder joints due to the reduced performance of the new lead-free solders the makers have gone to. LCD's are pretty easy to take apart and just spend some time resoldering everything that looks suspicious. Especially the larger components.
Hope Ya Fix It.

Posted on Feb 13, 2008

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Sound like the main board may have died, but this set has some firmware upgrades that can be done as well, there also may be a problem with the LCD control board. At any rate this problem is beyond the backyard tv tech, my advise is to take it to a autherized Sharp repair shop, by doing that the shop can order these part through Sharps board exchange program and save you some money on the parts

Posted on Feb 13, 2008

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