Question about Sharp Aquos LC-45GD4U 45 in. LCD HDTV

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Problem with Brand New Sharp LC-46SB54U

I just bought a new 46 inch lcd tv from Sharp. I have only had it afew days and I have noticed that occasionally the picture and sound will go out (kind of like it is detecting the signal source for that input, and then come right back on. I have only seen this occur with things connected to my component jacks (A couple of time it happend when I was playing XBOX 360 and the other times it was when I was watching digitial Cable--both 1080i and 480i).

I have noticed that this TV has a feature that automatically selects the input type for inputs 1 and 3 (the component inputs). When set on auto, it will supposedly automatically select the appropriate input type, either A/V or Component. Is this feature causing these random temporary blackouts? Is it trying to re-identify the input source periodically? If I set this feature to always see inputs 1 and 3 as component, will it fix this problem.

I have seen other posts where people describe hearing a popping noise accompanied with a picture only blackout but that doesn't appear to be happening with my tv. It just seems to be randomly redetecting the input source, like it does when you cycle between inputs. Any help or advice would be greatly appreciated. Thanks.

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  • nachos01 Aug 01, 2008

    Just an update...I set the feature to detect inputs 1 and 3 as component and it still blacks out. It seems to really only do it when I am viewing a 1080i source. The one time it did it when viewing standard television was when I had just changed it from a 1080i source. It is doing it at least once a day and I don't think it should be considering I have had the tv for only about a week. Any advice?

  • crimsonwolf Nov 29, 2008

    Same here! I am going to try an XOBX360 elite and hook it to HDMI see if that problem gets fixed. gametag: CRIMSONWOLF 23

  • Anonymous Nov 29, 2008

    I just bought the same TV yesterday. I'm also having the same problem when watching Netflix on my XBOX through component. Called technical support and they had me switch back and forth between TV an HDTV on the wire from the XBOX, and they also had me reset the TV, still having the same problem. About every other minute + or - 5 it keeps blacking out. Doesn't seem to happen when watching TV only when watching XBOX.

  • Anonymous Nov 30, 2008

    Will I have an issue if I use the HDMI input for my Xbox 360?

  • Anonymous Dec 01, 2008

    I have the same problem for the last week using component with my 360, and today had the problem watching digital box using component. I guess no one knows how to fix it other than exchanging the tv??

  • Anonymous Dec 01, 2008

    having the same problem here... playing games or watxhing netflix.
    i wonder if buying a vga or hdmi cable for xbox 360 would fix it

  • deleaux Dec 03, 2008

    I had this problem, returned the tv, got a new one, and had the same problem...can you elaborate on what the problem is? Is it at all fixable - through sharp or a new tv? Or is hdmi/vga the only solution. I noticed it both on my cable box and 360.
    Thanks for any advice

  • lrglep Dec 03, 2008

    Just bought the tv, and it blacks out every 5 min or so... foes anyone know how to get around this?? Like everyone else here, it only seems to happen when i'm playing the 360.

  • Anonymous Dec 08, 2008

    I am having the exact same problem, it does just intermittently reselect the input. I do not use a XBOX or anything like that. It is in my input I have labled as CABLE- my digital dvr box from cable provider. Have not heard of a solution either????

  • b_rant78 Dec 20, 2008

    I have the same issue. It only happens on the component side with my cable box hooked up while watching 1080i. I have the 360 hooked up with hdmi and it doesn't do it with that. I don't know what to do. This sucks

  • Anonymous Jan 05, 2009

    This is ridiculous that Sharp would put this on the market KNOWING it does this! Mine is the same! and I aint happy about it!.

  • madehim89 Jan 08, 2009

    I bought a Sharp Aquos 32" in November, model LC-32GP2U from BestBuy. I have already had the GeekSquad out once to look at the issue, he told me I had a short in my cable, so me being ever gullible I bought a new component cable (I don't have an HDMI port on my Xbox 360), well guess what, it still blacks out for 3-6 seconds whenever it feels like it. GeekSquad is coming again tomorrow, I am printing this and similar threads to show him, honestly at his point I am ready to give up and get a Sony or Samsung. I am very unhappy about this considering my TV model has the "Vyper Drive" which is specifically marketed for gamers, yet my games **** if I can't see them, lol!



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Well this is not exactly a solution as much as it is just to inform you of what I've found out. I actually posted one of the problems listed below as guest. Either way, after having techs come to my house to replace the main board and component board to a total new (well, refurbished) TV exchange; I finally got some answers that clarified exactly what was going on. Today when I called Sharp to complain about the problems still happening with the new unit, they explained that they looked into the problem and it actually seems like there is an issue with the TV interpreting the signals coming from the XBOX. So essentially the signal is more than the TV can handle and then it lags behind a little. When this happens it can get confused and might want to switch resolutions (like going from 1080p to 1080i) for an instant and this is what causes the "blackout" issue. Apparently they are working on a firmware upgrade which should take care of the issue which should come out (hopefully) within the next 30 days. As soon as they do come out with the firmware upgrade I will post it on this page so everyone having the same issues can go ahead and upgrade. Hope this information is useful to some of you.

Posted on Mar 03, 2009

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The problem is in the component video jacks, and AFAIK there is no way around it. What I did was buy an HDMI cable for my cable box, and a VGA cable for the 360. Bad thing is, the TV will not accept 1920x1080 through the VGA port...but it WILL fix the blinkout issue with the xbox. So, those with older 360s have the option to either upgrade to a HDMI 360 (min $200) or buy a $40 VGA cable.

Posted on Dec 01, 2008


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