I upgraded the firmware and this problem seems to be resolved now. Thanks.
Here are some shots of my setup:
I run my HDMI from Verizon FIOS HD box to HD AVR for decoding HD signal.
I run a second HDMI from Bluray player to HD AVR and I use the $1,399.00 (retail) HD AVR decode all the A/V rather then use as a pass thru from $200.00 Samsung BR player..... I was thinking the more expensive AVR with HD audio decoders would send a better signal to my speakers and upscale video would look better..... The 2400 does Not have HD audio decoders in it. Pass thru 1080P video but only have 5.1 DD sound. We trid and all I got was DD 5.1 on a Bluray to 2400 when Onkyo 805 HD died. Have I missed something???
I thought in through mode the AVR sends the EDID data from the TV untouched, so the TV should tell the source to only send 2-channel audio in a format the TV can support.
Maybe there is some setting on the source that needs adjusting, I have not used standby passthrough on my 3900 so have no experience on how it does actually work.
Maybe someone that know how this function works can offer some more assistance.
Fix = It will always be on the input specified in the HDMI through menu.
Last = It will be on the last input used before putting the AVR into standby.
Yeah the AVR needs to be on to make use of the upscaling.
NTSC @ 24fps? What is the resolution of the videos?