1907FPt Power button

ok, so I've had my monitor now for a little over 2 years, along with my XPS 400. My warranty has expired so I can't use the chat feature. My power button on my monitor has just stopped working. I can feel some give, but it just does not turn on. I'm VERY frusterated with this, especially that I can't get support for it anymore. How can I fix this? OR, how can I take this thing apart to diagnose it myself?