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What This Guide Helps With
This guide assists Clinical Engineering in troubleshooting situations where the Skytron Aurora surgical light exhibits burned-out LEDs or uneven illumination across the light field. These issues can impact visibility during procedures. The focus is on external, easily verifiable checks before assuming internal LED module failure.
Step-by-Step Troubleshooting
Verify Power Supply and Connections
- Ensure the light is properly connected to a verified, functioning outlet.
- Check for blown fuses, tripped breakers, or loose plug connections.
- Why: LED modules may appear dim or uneven if the light isn’t receiving proper voltage.
Inspect Light Head for Visible Damage
- Look for cracked lenses, discoloration, or loose LED modules.
- Check for signs of overheating or physical stress.
- Why: Physical damage can create shadowing or uneven light output.
Clean Lenses and Reflectors
- Use a manufacturer-approved, non-abrasive cleaner to remove dust, fingerprints, or debris.
- Why: Contamination can make the light appear uneven even if LEDs are functional.
Check LED Module Connections
- Ensure connectors between the LED modules and driver boards are seated properly.
- Why: Loose or partially connected modules can cause dim or non-functioning spots.
Perform Light Pattern Test
- Turn on the light and observe the light field for uneven spots or dead LEDs.
- Compare against other functioning Aurora lights, if available.
- Why: Confirms whether the problem is isolated to specific LEDs or general illumination.
Swap Modules (if available and serviceable)
- If a spare LED module exists, carefully replace a suspect module following manufacturer guidelines.
- Why: Helps confirm whether uneven lighting is due to a specific module or broader system issue.
If the Problem Persists
Common external and connection issues have been ruled out.
The device should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench evaluation by qualified service personnel
Knowing when to stop is proper troubleshooting and ensures patient safety.
Clinical Use Tip
Do not attempt to adjust or troubleshoot LED modules over an active surgical field.
Move procedures to another light if uneven illumination could compromise visibility.
Only perform module inspection or replacement when the device is powered off and safe to handle.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
“Surgical staff reported uneven light spots and some non-functioning LEDs during procedures.”
Cause
What was observed during troubleshooting.
Example:
“Inspection revealed one or more burned-out LED modules; all power connections verified.”
Resolution
What action was taken.
Example:
“Light removed from service, labeled Out of Service, and sent for LED module replacement/bench repair.”
Helpful Details to Include
- Outlet and power verification complete
- Light head lenses cleaned
- LED module connections checked
- Light pattern tested for uneven spots
- Final device status: Out of Service, pending repair
Final Thought
Patient safety is paramount. Using logical, stepwise troubleshooting avoids unnecessary module replacements and ensures that any internal LED or driver issues are addressed by qualified personnel. Proper CCR documentation provides clarity and a record of the device status and actions taken.
That is successful troubleshooting.