RX-V663 won't change input automatically

once you set the audio program for an input, it should stay set even if you power the unit down. As far as locking that program so that it cannot be changed - no there isn't a way to do that.

How did you 'connect' the cordless microphone to the RX-V663? You will need to select this same input in order to get output in the speakers.

Long story short... No. Use your 663 for digital audio, Run video direct to TV for BLURAY & or Cable for 3d content. You can still switch all other video sources thru the receiver. Not cost effective. cost more to do it than you paid for it. Hope this helps

Page 111:
PROBLEM: Zone 2 speaker settings are not available in "SET MENU".

CAUSE: "EXTRA SP ASSIGN" is set to a setting other than "ZONE2".

REMEDY: Set "EXTRA SP ASSIGN" to "ZONE2".

See Page 85

I'd leave it that way if it was me.

What do you hear? Do all other modes work ok?

If Audio Select (Page 44 and 98) is set to HDMI you will hear silence if no HDMI signal is present. I think AUTO is the best choice here.

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On Page 98 of the manual it says a bunch of things concerning automatic signal detection and input selection.

Initial configuration D) INIT. CONFIG
Use this feature to select the settings of the audio input jack select, active decoders and extended surround when you tum on this unit.
....

Audio select AUDIO SELECT
Use this feature to designate the default audio input jack select setting (see page 44) for the input sources connected to the DIGITAL INPUT jacks when you tum on the power of this unit.


HDMI set E)HDMI SET
Use this feature to select the component to play back HDMI audio signals.

Support audio S. Audio
Use this feature to select whether to play back HDMI audio signals on this unit or on another HDMI component connected to the HDMI OUT jack on the rear panel of this unit.
...

CHOICE = RX-V663

FUNCTION
Plays back HDMI audio signals on this unit. The HDMI audio signals input at the HDMI input jacks of this unit are not output to the HDMI component connected to the HDMI OUT jack on the rear panel of this unit.

CHOICE = OTHER
HDMI component connected to the HDMI OUT jack.

NOTES
This unit transmits audio and video signals input at the HDMI input jacks to the HDMI out jack only when this unit is turned on even if "S.AUDIO" is set to "OTHER".

I'd look in these areas for specific guidance.

The rx-v663 has 2 hdmi inputs, and 1 HDMI Outputs, The way I would run is 1 HDMI in dedicated to the Blu-ray, This will do the audio HD True digital, DTS-HD , then video out to the TV for HD 1080p resolution, On the cable box out do you have an HDMI 1.3? If so sport it to the other available receiver HDMI IN, net the same in/out as the blue ray, minus a 1080p result video which will only happen Blu-ray, cable will result 1080i HD and audio HD will vary with the signal broadcast format.

If i am not mistaken you can select the HDMI signal going out on the 663, this means you should select to have only pictures to go out as sound will have to be reproduced by the 663.
So HDMI output setup on the 663 should indicate image only, no sound.

Connect your S-video output from the computer to an empty S-video input on the receiver. Connect your speaker output from computer to analog audio input on the receiver using a 1/8" stereo connector to RCA patch cable. You may have to set your computer to output video to the S-video jack, consult your HP documentation for instructions.