A screen that is off can indicate any number of  issues.  Starting with a systematic approach to problem will result in much quicker resolution regardless of what parties are involved.

  1. Site Level  - 
    1. No power to site
    2. Circuit Broken
    3. Cord unplugged
  2. Kiosk Level
    1. Failed internal power supply
      1. testxxx
    2. Failed Screen
      1. testxxx
    3. Failed PC
      1. testxxx