Respect Lord, first off I would try the least invasive way and that is by resetting the ipod http://support.apple.com/kb/ht1339 If that does not make a difference you might be looking toward replacing your LED first. It is relative inexpensive iPod Nano Gen 3 Color Display the instructions are right here. Installing iPod Nano 3rd Generation Display Of course make sure that your ribbon cable is connected properly, that no corrosion or other debris prevents the cable from making good contact. If this will not take care of the problem you may have to replace the logic board due to a back light issue. Good luck and let us know how it is going.

If replacing the LCD doesn't help, it might be some kind of issue directly on the motherboard.

My iPod does not work

Show me a black screen and I can not play songs

I think the battery is empty but after charging the battery also does not work

Please help me