Question about Sharp Aquos LC-46D62U 46 in. LCD HDTV

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Aquos LC46D64U, problems with av input video signal

I have a 3 month old aquos 46d64u LCD TV which is having a weird problem with the standard av inputs. Occasionally when turning on a gaming system (Wii and XBox), the audio will come through fine, but the video will just be a series of random colored patterns that flash on the screen. Both systems produced the same garble pattern, but through different av ports.

This has happened twice, and the second time turning the TV off and back on resolved the issue (don't know what fixed it the first time, tried too many things without knowing which one worked).

Both times this happened, one of the consoles was left on accidentally for a few hours, while the set was on another input. Could this have been the cause?

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  • Rrilltrae Mar 14, 2008

    Will do, but it hasn't happened since I posted.



    The thing I found so strange was that the second time, I attempted to turn both systems on to figure out what was going on, and they both produced the exact same pattern on different av ports. This pattern was different than the first time, but similar.



    I've seen plenty of console garble over the years, but never had two completely different systems produce the exact same errors

  • jedikn1te May 11, 2010

    Hard to say if it's an intermittent problem. Next time it happens, could you post up a picture of the problem?

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  • 53 Answers

You know, I've had two repair instances regarding this particular model line (D64U) where there were problems with only the analog inputs (such as the component/composite).... but with no problem with the HDMI inputs.

Replacing the Main Board fixed these TV's. Since both the Xbox and the Wii present the same problem on two separate inputs, this leads me to believe you most likely have a defective Main Board. If your TV is still under warranty, I suggest calling Sharp to locate your local authorized service center.

Posted on Mar 18, 2008

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