Your iPod has been working fine and all of a sudden it won't turn on. Not sure why? Before you rush to your nearest Apple store, try these easy-to-use, at-home solutions for fixing your iPod.
Check the Hold switch to see if it is off. Located on the top or the bottom of the iPod, when it is in the "on" position you will see an orange patch of color. Slide the switch until the orange coloring disappears. Try to turn on the iPod. Make sure the battery is fully charged by connecting your iPod to your computer's built-in FireWire or USB port or into an electrical outlet using your Apple iPod power adapter. Note: iPods without a click wheel cannot be charged using a USB port. After your battery is fully charged, try to turn on the iPod. Reset your iPod.
iPod Shuffle: Disconnect iPod Shuffle from the computer if connected. Move the power switch to the off position. Wait five seconds. Move the switch to the play in order or the shuffle position. iPod Touch: Press and hold the Sleep/Wake and Home buttons together for at least 10 seconds until the Apple logo appears. iPod Nano (all generations), iPod Classic, iPod Mini: Turn the Hold switch on and off. Press and hold the Menu and Select buttons at the same time until the Apple logo appears, making sure to not touch any part of the click wheel. This should take about six to eight seconds and may need to be repeated. If your iPod still won't turn on, check the following: Make sure the iPod is the only device in your FireWire or USB chain. Disconnect everything but the mouse, keyboard and iPod, and try again. Double check that you are using the FireWire or USB cable that came with your iPod, and that it is in good condition. Try the built-in port of a different computer.
iPod won't turn on http://support.apple.com/kb/ts1383