Atari 7800 just crapped out

So, for the first time in a long time, I just decided to hook up my Atari 7800.   When I hit the power button the initial time the power light came on for about 1 second, and then the whole unit shut off and hasn't worked since.  There seemed to be a barely detectable smell coming from the console as well.   Pretty sure there was anyway.  It's old (though in good condition) but it may just smell weird I suppose.   Is there any common things that would fry inside one of these?   I've read an awful lot today about people with power switch issues, but since mine did turn on initially, I didn't think that was my issue.

Any clues for me?   I do have a power meter, although I really don't know how to use it.  So if you have any tips that involve that, please be detailed.   Any help would be appreciated!  Thanks!