Quote:
Originally Posted by LodeRunner 
But there are several posts in this thread that referred to "displayed resolution", as differentiated from input resolution. I am aware that this set *can* do upconversion but I was under the impression that (like its venerable widescreen brother the 34XBR960) it supported multiple native resolutions.

But there are several posts in this thread that referred to "displayed resolution", as differentiated from input resolution. I am aware that this set *can* do upconversion but I was under the impression that (like its venerable widescreen brother the 34XBR960) it supported multiple native resolutions.
There is a lot of misinformation on the internet.
All of the Sony crts, XBR800 thru XBR970, including the XBR960, have the DA4 chassis. Sony's DA4 technical documentation, as well as my bench testing, indicates the DA4 chassis scans at a fixed horizontal scan rate of 1080i. All input resolutions, except 1080i, are converted.Quote:
Originally Posted by LodeRunner 
In particular, it is pointed out that 1080i signals on this model are always displayed in widescreen (with horizontal black bars; however no scan lines are "wasted" on rendering those black bars), whereas SD sources use all of the screen real estate. 1080i in full screen makes no sense, because (interlaced controversy notwithstanding) HD formats are defined as having an aspect ratio of 16:9, not 4:3. Therefore, if it is NOT displaying 480p signals natively, we must beg the question: what exactly is it doing? Standard 1080i simply will not fill a 4:3 screen evenly, although it is quite possible that it is upconverting to some other resolution.

In particular, it is pointed out that 1080i signals on this model are always displayed in widescreen (with horizontal black bars; however no scan lines are "wasted" on rendering those black bars), whereas SD sources use all of the screen real estate. 1080i in full screen makes no sense, because (interlaced controversy notwithstanding) HD formats are defined as having an aspect ratio of 16:9, not 4:3. Therefore, if it is NOT displaying 480p signals natively, we must beg the question: what exactly is it doing? Standard 1080i simply will not fill a 4:3 screen evenly, although it is quite possible that it is upconverting to some other resolution.
It always scans 1080 interlaced lines. For 4:3, the 1080 lines are distributed across the entire vertical span of the tube. For 16:9, the 1080 lines are compressed vertically to create a 16:9 ratio window. BTW, theoretically, one could, thru the service menu, force an HD signal to fill the 4:3 screen vertically, though there would be a tremendous amount of overscan to get good geometry.

















