Volvo Repair: 1995 850 GLT, flat head screw, moon roof

Question
I replaced a indicator light on my moon roof  and head light switch. Now  all mt dashboardand lighter light won't work. Check the fuse and they are ok. Any I thoughts on this.

PS my son turned the little flat head screw on headlight switch is this a problem.
Thanks Mike

Answer
well you can have bad headlight switch did you use volvo headlight switch the small screw is to turn off or on  day time running lights off but if you turn to much the screw than you damage the switch and you will not have dash lights  the conected together  try new switch or you can have also bad ignition switch  try to move key to start position slow back and forward when the car is running if lights come on you have bad  ignition switch or you just have bad bulbs but not likely that all bulbs go out at same time