Tell us about yourself!
I didn't mean to fear bait. I'm actually worried about this. When there's a small chance that someone can get killed, I feel it's worth saying something. Most guides on the web about microwave repair will have cautions concerning discharging the cap, so I didn't feel it necessary to repeat that here. I should have said so. Here's an example: http://www.doityourself.com/stry/repairmicrowave
That's very wrong. There's a big capacitor that can zap you in there. Know what you're doing if you open a microwave.