Volvo Repair: electrical, volvo 850 turbo wagon, dashboard lights

Question
Volvo 850 turbo wagon 1994 - at last inspection I had a full tune-
up - just prior to and immediatly after, it seems that I've had both
intermittant & total outages of (intermittant) right front head lamp,
and a back-up light --( total) dashboard lights for LCD display,
console lights for auto-transmission (P/R/N/D/etc.) display and
both the main & trip odometers have quit working -

Any possible wiring junction(s) that could be disturbed during the
tune-up ? The guy's a good/fair priced mechcanic but not a Volvo
tech per se.
   Any thoughts are appeciated. THANKS.

Answer
Joe, sounds like it may be coincidental but check the bulbs, check to see if the lever for the dash lights on the panel has been accidently moved.  Your electrical portion of the ignition switch is most likely the culprit though.  When it happens, turn the key back a little and see if comes back.  Roger