I have an Insignia 42"

The three picture cords (red/blue/green) often are a little larger around than the sound cords (red/white). If they are they same size, they are often grouped separate by picture and sound. Double check to verify if you have the "red" cords correct. Good luck.

Make sure your dvd player is not in progressive scan mode if your using a/v mode. The best way is RGB component input, provided you have the cables.

Double check your componet cords and make sure they are plugged all the way in and in the correct color slot.

make sure you are using component video red green blue cables for video and not just the yellow composite video cable not sure if this helps you but good luck

If you have the audio cables hook up correctly to where the video cable from DVD is connected to, it should be RED and WHITE wires for audio. Then go to on screen audio setup menu to see if the speakers is turn off in the menu. Also try hooking up the powered PC speakers to the AUDIO LINE out RCA jacks to see if you get the sound OK there.

if you connect composit video from your DVD player to the "Y" jack of the tv then you will get only a black and white picture .. the composit video out of your DVD has to be connected to the composit video input of the TV .. or if you have component outputs on your DVD then you can hook those up to the "three" component inputs of the tv .. (you have to have all three hooked up plus 2 audio cables ..

youve hook up plugs wrong im asuming youve hook it up using componet plug featuremach colours so same plugs are in same colour holes//oz

Make sure component cables match colors between Television and DVD player. It should be TV input to DVD output. Try to play at least two DVDs to make sure its not a single DVD that may be having an issue. Also, adjust your television's picture setting to make sure its set to normal. Also access your DVD players menu to make sure the setting are set to normal as well.If it doesn't correct the problem, use a different component input on your television. If problem persists, you may need to contact the DVD player manufacturer to see if its still under warranty and not defective. Good Luck.

I assume you are saying that the DVD player only has RCA jacks. It would be good to know if the DVD player has Component output as that is the preferred output. You will know this if the RCA jacks on the DVD are color coded green, blue and red.... You would by a set of component cables, hook to DVD matching colors and then find the same color code on input of the TV. You must also run the red and white cable from the DVD output to the TV input for audio. The input on the TV would be labled component in or input and a #. Simply select the input, or source button on remote to select the input that matches your choice and all should function. If there is no component on the DVD output and only a composit hook up (color code by yellow, red, white) again just match that to the corresponding input on the TV.

Have you tried to hook up a DVD player or any other source? If so does the color come back? If not then I recommend you call for warranty service if the set is in warranty, sounds like the vidoe processors are bad on the main board