What tv do you have & what receiver do you have or if I am reading this right your using the audio out of the TV & probly using powered computer speakers!?!?!!?!?
Most TV's need to be told to send the sound out to the audio out port, it would be under the TV menu of 'Speaker', 'Sound' or 'Audio' & look for 'Fixed', 'Speaker'(On/Off), 'Variable' or Speaker Out'.
Fixed would be TV speakers only
Variable would be both exteral & tv speakers
Speaker out would be only exteral speakers
For no component video, could be a bad cable, you have the wrong input selected, colors are mixed up?!?
Just got a new HD Cable box/DVR (Pace TDC778X) connected to my HD TV via HDMI and I only get audio through the TV speakers, not through my surround sound external speakers which are connected to the TV via RCA cables. I tried an optical audio cable between the cable box and the TV, still no luck.
If I connect the cable box to the TV using SVideo and RCS audio cables, sound does come through the external speakers, but the video is sub-par.
I also tried connecting using component video and I cannot get video.
I could connect my external speakers to the cable box, but that is a pain since I will lose the external speakers when watching a DVD...
Pretty frustrated...any help greatle appreciated!