I'm having an issue with my newly received WD73642 hooked up Yamaha RXV371 receiver.
I used to use my receiver with my old KDL55NX720 and also a KDL46EX400, in interim while waiting for the DLP to get here after selling the 55NX720. I would use the feature of HDMI control to have the AVR change inputs and turn on/off automatically as TV input changed and TV turned on/off. It worked fine on the previous TVs but on the WD73642, I seem to have an issue...
When I first configured the WD73642 and turned on HDMI CEC with the AVR, it worked great... However, it seems when I turn off the TV and turn it back on, the AVR turns off and on like it should, but there is no audio once everything is back on. The symbols that light up to show you the speaker configuration of incoming audio are all turned off too. TV will still control the AVR and change volume up and down... But... No sound.
If I attempt to change inputs, the input on the AVR changes along with the TV input, but a few seconds later, the AVR will AUTOMATICALLY change back to the regular TV audio input ... even if I just switched it to an HDMI input through the TV remote, it'll switch back to the TV audio input (OTA cable/antenna audio). Still, either way, no audio can be heard. I pretty much have to disable CEC on the Mitsubishi and turn off HDMI control on my AVR for audio to work again.
It's a bit sad, 'cuz if I reconfigure it again right away after disabling everything, it works fine... flawlessly... even the volume up/down from the TV controlling the AVR... it always breaks once I turn the TV off for awhile and turn it back on, though. So I guess I'll have to just use two remotes instead of one until Mitsubishi fixes the issue. They probably won't, though, so I won't hold my breath. Just a minor inconvenience.