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