Replacing or Fixing Dimmer Switch

Where can I find some directions/advice to replacing or fixing the Dimmer Switch in my 1994 J30 Infiniti which is not working. It appears that this is a common problem on these cars.

What I am looking for is detailed instructions so that I can get an idea as to the difficulty and time involved.

Any other related advice is welcome.

Thanks,
Dave in NC

taking apart the dash is not very difficult (6 screws and it's off)
i'd say it's about a 1 hour job depending on the switch itself.