Onkyo TX-NR 838 Manual page 94

This function is effective only when the device is connected to the
HDMI OUT MAIN terminal.
Setting to "On" and closing the on-screen menu displays the name of
the CEC-compatible components and "RIHD On" on the display.
Power consumption in standby mode may increase if "On" is set.
(Depending on the TV status, the unit will enter the normal standby
mode.)
If you operate the MASTER VOLUME control of the unit when this
setting is set to "On" and you are listening to the audio through the
speakers of your TV, audio will be output also from the speakers
connected to the unit. If you want to output from only either of them,
change the unit or TV settings, or reduce the volume of the unit.
If abnormal operation occurs when you set the setting to "On", set it
to "Off".
When connecting a non-CEC compatible component, or when you
are not sure whether it is compatible, set the setting to "Off".
When changing this setting, turn off and then on again the power of
all connected components.
HDMI Through
Default Value: Off
You can display the video of an HDMI connected player on the TV even
if the unit is in standby mode. This setting is effective only for an input
selector to which an HDMI jack is assigned in "HDMI Input". It cannot be
set to any other input selector unless an HDMI jack is assigned to it.
"Off": The setting is disabled. Video of device connected to any jack will
not be displayed.
"BD/DVD", "CBL/SAT", "STB/DVR", "GAME", "PC", "AUX", "TV/CD",
"PHONO": Video of the device connected to the HDMI IN jack assigned
to each input will be displayed on the TV.
"Last": Video of the device connected to the HDMI IN jack assigned to
the input selector that was selected immediately before the unit enters
standby mode will be displayed on the TV.
"Auto": Video of all the devices connected to the HDMI IN jacks will be
output to the TV.
"Eco": Video of all the devices connected to the HDMI IN jacks will be
output to the TV. If you select this setting when using a CEC-compatible
TV, you can reduce the power consumption in standby mode.
"Auto" and "Eco" cannot be selected if "HDMI CEC (RIHD)" is set to
"Off".
When "HDMI Through" is enabled, the power consumption increases
even when the unit is on standby. However, the increase in power
consumption is kept to a minimum by automatically entering the
HYBRID STANDBY mode, where only the essential circuit is
operating.