How should sudden laser faults be handled during a live concert?

Fault Response Plan

• Carry a backup fixture for every critical laser position on the rig
• Stock the parts that fail most in touring: power supplies, galvo scanners and control boards
• Fit emergency stop and interlock so a faulty unit can be isolated without killing the whole rig
• Keep remote diagnosis enabled so a technician can identify the fault before the unit is opened
• Assign one person to decide between repair on the spot and swapping the fixture

What Makes a Unit Field-Serviceable

• Modular internal layout so a module can be exchanged at the venue
• Clear fault codes readable on the display or over the network
• Standard connectors and fixings that match the rest of the rig
• Documented spare-part list agreed at purchase