Onkyo TX-NR 838 Manual page 63

"COMPONENT": COMPONENT VIDEO IN jack is assigned to PC
button.
AUX
Default Value: -----
"COMPONENT": COMPONENT VIDEO IN jack is assigned to AUX
button.
TV/CD
Default Value: -----
"COMPONENT": COMPONENT VIDEO IN jack is assigned to TV/CD
button.
PHONO
Default Value: -----
"COMPONENT": COMPONENT VIDEO IN jack is assigned to PHONO
button.
When you convert video signals input to the COMPONENT VIDEO IN
jacks and output them from the HDMI OUT jack, set the output resolution
of the player to 480i. If the input has 480p or higher resolution, an error
message will appear.
When "Monitor Out" is set to "SUB", the 480i/576i component signals only
will be output with an unchanged resolution. Video will not be displayed if
the TV does not support the resolution.
When "Monitor Out" is set to "MAIN" or "MAIN+SUB" and "Resolution" is
set to "Through", the 480i/576i component signals will be output with their
resolution unchanged. So, TV sets not supporting these resolutions will
not be able to display video.
Composite Video Input
It is possible to change assignment of input selector buttons and the
COMPOSITE VIDEO IN V1 to 3 jacks.
BD/DVD
Default Value: -----
"VIDEO 1" to "VIDEO 3": Desired COMPOSITE VIDEO IN jack can be
assigned to BD/DVD button. If you do not assign a jack, select "-----".