Got my RX-V473 after getting poisoned by a friend's Aventage series. Used to have a cheap amp but has not revisited home theatre systems since it died a long time ago. Was pleasantly surprised how far AV receivers came along.
Hit the same error when updating firmware to 1.14 from the receiver unit itself, downloaded firmware into USB drive and it works.
Love DLNA - playing music from my WDTVLiveHub.
Minor detail :
Net Server mode to play music > change to any other scene/input source > change back to net Server. It gets out-of-sync and keeps waiting on "loading" to display music list.
Hitting "Net" to cycle through Net radio, airplay and back to Net Server solves it.
IR Remote control seems to drain new Energizer batteries in 2 days. Swapped 3 sets of new batteries. Got the remote control changed from the shop, we'll see how this one goes but I suspect I just got a lemon.
I keep getting "Error - Too noisy" when trying to auto calibrate with the YPAO mic, even at night with the ceiling fan off. Chose to proceed anyway and then tune by ear.
Once the initial setup is out of the way, I'm enjoying it.
Went out to get the NS-SW210 a week later. Although auto-calibration sets the crossover at 40Hz, I found it to be better at 110Hz. After which looking at articles online looks like that matches my small to mid size speakers.
Congrats on your purchase. I found that for Yamaha if you are patient and you set it up correctly you will be rewarded with the their Expansive sound with good soundstaging and depth. Care to share what mid size speakers you are currently using.