I was given a 5th gen ipod video 80gb from my sister because the click wheel doesnt respond. It will work usually when you first turn it on, but not for long. The wheel and the buttons will not work when it goes out. Is this a problem with the wheel or with the logic board? Ive tried reseting the ipod and still the same problem. Ive taken the ipod apart and I see no damage to the ribbon cable, wheel, or logic board.
The problem can be either the wheel or the board. Unfortunately, the only way to find out is by replacing one or the other. I would recommend sending the device in for a wheel replacement: http://www.milliamp.com/5th-gen-ipod-video-scroll-wheel.html