You may have a problem in the primary stage in your Power supply !! Unhook everything that is attached to it .... make sure the power plug is in good shape and you have the right amout of ac at the plug and good grounding ... then then try turning it on again ....
Does it stay on ??
if not .. there is something wrong probably in the primary stage of the Power Supply ... could be a bridge or something like that
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Using 1056B03 universal remote from Time Warner. Several codes actually will turn the unit off and allow volume control. Or..I can turn on and volume control. Can't do both. I tried to use the receiver codes in the vcr mode, but the remote rejects receiver codes (i.e. only accepts vcr codes).
I had the same problem with HDMI input to the RX-V373 from a DirecTV receiver. The RX-V373 volume display and menus on the screen are HD only, which forces the monitor to switch modes when viewing SD.
My solution was to turn off 480i and 480p signals from the DirecTV receiver, and also turn off its native output. The DirecTV receiver then upconverts SD signals to HD. Changing RX-V373 volume then doesn't affect monitor video mode.
Check the settings on receiver in the SETUP menu / HDMI / Audio. Here you can choose Amp (sound goes from the speakers connected to receiver), TV (receiver is muted and sound is routed via HDMI to TV) and Amp+TV (sound goes from speakers and also to TV). Also check in OPTION menu / Signal Info that receiver is receiving sound in recognized format.