how do radios with digital displays actually tune?

Question

On the old ones where you have to actually dial the numbers, I can see that working but not the digital ones.

Answer 1

This says it better than I can. It's entitled, "What is phase-locked loop?"

http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci783790,00.html

Answer 2

looks like something is malfunctioning interior the tuner. A cord could nicely be unfastened given which you bang on it and it relatively works for a mutually as. besides whilst that takes place it is often easiest and maximum inexpensive to swap it. those issues are made to be disposable those days, no longer fixable.