My magsafe charger light is not coming on. How can I test it and troubleshoot this not charging.

I discovered an old iPod nano of mine and I am trying to fire it up again. I put it on a charger overnight but it is stuck...

I have an old Vaio laptop and I am trying to see if it works but I don't get any lights on the laptop when I try to power...

How to change the battery

I have a very similar problem, just since my battery is completely depleted I cannot do any sysyem or hardware checks. My first thought is to test the charger with a voltmeter but I am unsure how to do...what pins to test and what I readings I need to see. Any input would be great! Review these images: The connector should look clean MagSafe Pinouts