Trying to fix an xbox

[mangriff32]

I'm trying to fix this kid's xbox, and at first, he had the 4th red ring illuminated, and it would also not put out audio or video, so I used the penny trick. Now that got rid of the red ring, but it still refuses to put out audio and video. Any help or suggestions would be greatly appreciated

[Twis7eD]

Get the secondary error code if the RRoD comes back, more info here. That will allow you to determine the cause of the problem and lead to a way of fixing it.