Pulling audio channel cuts component video feed?

[charlocharlie]

Earlier I was playing Wii through a component (YPbPr) capture card with a built in passthrough. I was having some troubles with the signal cutting out on my TV, and I thought the signal was just too weak coming out of the passthrough. I rigged up a ghetto splitter for the video and left the audio to the capture card passthrough. 

 

While recently troubleshooting this problem, I noticed that the entire audio-video signal cuts out when I unplug any audio connector (red or white) from my TV. This seems crazy to me that pulling an audio plug would cut the whole signal. 

 

Is this a problem with my TV (Vizio E241-A1)? Or is it somehow my Wii's component video cable?

 

Luckily I think I learned my capture card's passthrough isn't broken.

[dalekphalm]

Earlier I was playing Wii through a component (YPbPr) capture card with a built in passthrough. I was having some troubles with the signal cutting out on my TV, and I thought the signal was just too weak coming out of the passthrough. I rigged up a ghetto splitter for the video and left the audio to the capture card passthrough. 

 

While recently troubleshooting this problem, I noticed that the entire audio-video signal cuts out when I unplug any audio connector (red or white) from my TV. This seems crazy to me that pulling an audio plug would cut the whole signal. 

 

Is this a problem with my TV (Vizio E241-A1)? Or is it somehow my Wii's component video cable?

 

Luckily I think I learned my capture card's passthrough isn't broken.

Inherently, the audio portion of Component (YPbPr) is completely independent. You shouldn't even need to audio connected or plugged in at all for the Component video to come through. My first thought is that there is some sort of short in either the TV connection or in the Wii? Unless the Wii uses a non-standard Component Output, but that doesn't make any sense.