I just replaced a broken screen and battery tonight in my early ipod video 30g. I think you may have not got the audio cable back in correctly or you may need to replace the earphone connector. This site is great and just last week i used ifixit parts to fix my ibook dc in then tonight my ipod. Saved a ton of cash and the service is awesome.
Installing iPod 5th Generation (Video) Case
I just replaced a broken screen and battery tonight in my early ipod video 30g. I think you may have not got the audio cable back in correctly or you may need to replace the earphone connector. This site is great and just last week i used ifixit parts to fix my ibook dc in then tonight my ipod. Saved a ton of cash and the service is awesome.