It sounds like it could be one of three things.
1. What resolution are you sending through the component cables? Often times, a low resolution (480) can have this, or a distorted affect. Check the resolution on your DirecTV/PS3 box and make sure that the resolution is consistent with a HD output resolution.
2. You can edit the name of the input for the device to see if that helps. With your remote, go to the Component input you want to change, and press:
Menu > Input > Edit Name > (choose one) VCR / DVD / Cable STB / Satellite STB / PVR STB / AV Receiver / Game / Camcorder / PC / DVI PC / DVI Devices / TV / IPTV / Blu-ray / HD DVD / DMA
3. If those still don't work, there may be an issue with the set itself, and then have it exchanged or, if that doesn't work, it can be repaired under warranty.
Keep me posted.
I just bought this new LED TV (Samsung UN46C6300) but there are no colors in the picture when I connect my Direct TV receiver or Playstation 3 using component cable. I get good picture when I connect Playstation 3 using HDMI cable.
I am just wondering if there is a problem with this set and I should get it replaced or am I doing something wrong. Suggestions/advice welcome.