Copying the post from the AVS forum for easier reading :
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AVR 1910 video issues
***Update after 3 hours of re-testing***
I have owned the AVR-1910 for about 1.5 months now and finally had the chance to carefully examine the video processing of this receiver. I have some ***findings***, bugs, and issues to report. The black level bug I find hard to believe has been missed so far on this forum. I guess no one uses 480i component or composite video anymore. I used the AVS 709 test disc, AVIA DVD (SD resolution patterns) and various Blu-Ray and DVD movies to test the video processing.
1. There is no Video Convert option to turn on or off. Video Convert is always on. ***This is a good thing, but misreported here*** There is an i/p Scaler option which can be off, analog, or Anlg/HDMI, but analog video is always converted to digital and output over HDMI. There are options for analog and HDMI resolution upscaling if you choose to turn the Scaler on. If the Scaler is off, output will be in the same resolution as it is input. 480i component in will come out 480i HDMI, etc. ***again not a problem, just a clarification***
2. The s-video input does not work for devices other than the Ipod dock. ***tested because many wanted to know***
3. Regular composite video processing looses a lot of resolution through this receiver. It makes DVD look like VHS after conversion to HDMI.
2. 480i analog black levels are incorrectly implemented in the 1910 to the Japanese standard instead of the US NTSC standard. You cannot control this. The only fix for it is to adjust your video devices output black level, such as can be done with some DVD players. This affects composite video and component video at 480i.
3. 480i over HDMI black levels are correctly handled.
4. 480p, 720p, and 1080i analog and HDMI black levels are correctly handled.
5. There is some resolution loss in the deinterlacing of component 1080i or HDMI 1080i to 1080p in this receiver. My inexpensive 1080p Samsung LN40A550 TV and my JVC XV-BP1 Blu-Ray player both beat the resolution of the ABT chip in the AVR 1910 when deinterlacing 1080i to 1080p.
6. The Scaler does a good job on progressive formats. Scaling 480p or 720p to 1080p.
7. The 1910 does a good job converting analog 480i, 480p, 720p, 1080i, and 1080p to HDMI. The 1910 does an excellent job passing through HDMI 480i, 480p, 720p, 1080i, 1080p24, and 1080p60 to the HDMI output.
8. While re-testing to update this report, I realized there is no free lunch. The analog to digital conversion process from component to HDMI will cost you some frequency response although it is not as bad as I had first thought. You probably won't notice the loss unless you are looking at resolution test patterns. ***I'm still disappointed in the resolution loss of deinterlacing HDMI 1080i to 1080p, there really is no excuse for it.***
My recommendations are:
1. use the scaler for upconverting 480i component, 480p, or 720p to 1080p if needed, this works well. Otherwise, just pass the signal through.
2. Do not use the 1910 to upconvert 480i composite video
3. Do not use the 1910 to upconvert 1080i video to 1080p
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