Sure sounds like "My car won't start."
The mechanic will start with questions like "When you turn the key to the
first click, do any dash lights come on? If you turn the key farther, is
there a "click", or do the dash lights dim slightly? Or does it just go
'ruh,ruh,riuh' and won't catch?"
Troubleshooting is a logical process, regardless of the problem at hand.
And it always starts with "what DOES work", before moving onto finding
reasons for what won't, and strategies for a fix.
An Ipod expert would be the ideal resource. Someone with general
problem-solving skills is a close second. You'll find a whole room full of
folks familiar with this process at any open meeting Tuesday nights.