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Manufacturer
Model
What This Guide Helps With
Identifies external causes of exposure failures or sync faults, including interlocks, readiness conditions, positioning, and system communication preventing X-ray generation.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Confirm no patient is in compression and no exposure is active.
- If needed, move the patient to another unit.
Expected Outcome:
Safe environment with no radiation risk.
Verify System “Ready” Status
- Check the system interface for “Ready” or equivalent status.
- Look for any warning messages or fault indicators.
Expected Outcome:
System indicates ready for exposure.
Why:
The generator will not fire unless all system conditions are satisfied.
Check Emergency Stop (E-Stop) Buttons
- Inspect all E-stop buttons (gantry, room, operator console). Ensure they are fully released.
Expected Outcome:
Releasing an engaged E-stop restores exposure capability.
Why:
E-stops interrupt generator operation and synchronization.
Verify Room and Door Interlocks
- Ensure the exam room door is fully closed and interlock indicators are normal.
Expected Outcome:
Closed door clears interlock-related exposure faults.
Why:
Open or faulty interlocks prevent X-ray generation for safety compliance.
Inspect Compression and Positioning Status
- Confirm the compression paddle is properly installed and compression is within acceptable range.
- Verify the breast support and detector are properly aligned.
Expected Outcome:
Proper positioning allows system to enter exposure-ready state.
Why:
Improper positioning or compression prevents exposure synchronization.
Check Footswitch / Exposure Switch Operation
- Test the exposure switch or foot pedal:
- Ensure it is connected
- Confirm no physical damage
- Try alternate switch if available
Expected Outcome:
Functional switch triggers exposure sequence.
Why:
A failed or disconnected switch can mimic generator faults.
Review System Error Messages and Logs
- Document any generator or synchronization error codes displayed.
Expected Outcome:
Specific fault codes help determine if issue is interlock, communication, or generator-related.
Why:
Error codes guide whether the issue is external or requires escalation.
Perform a Controlled System Restart
- Shut down the system using proper procedure. Wait 2–3 minutes, then power back on.
Expected Outcome:
System reinitializes and clears temporary synchronization faults.
Why:
Startup timing or communication issues can affect generator readiness.
Verify Power Stability to the System
- Check that the system is powered properly:
- No recent power interruptions
- System connected to proper power source
- No visible power alarms
Expected Outcome:
Stable power supports normal generator operation.
Why:
Voltage instability can prevent generator initialization or firing.
Confirm Generator Warm-Up / Calibration Status (if applicable)
- Check if the system requires warm-up or calibration before exposure.
Expected Outcome:
Completing warm-up allows exposure to proceed normally.
Why:
Some systems inhibit exposure until generator readiness checks are complete.
If the Problem Persists
If all external causes have been ruled out, the issue is likely internal (generator, high-voltage components, or synchronization circuitry).
Remove the device from service, label it Out of Service, and send for vendor repair or qualified bench evaluation.
Knowing when to stop prevents unnecessary risk and ensures proper escalation.
Clinical Use Tip
Never troubleshoot exposure issues with a patient in position. Always move the patient to another system before testing or cycling exposures.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"System would not initiate exposure; generator fault displayed during exam."
Cause
What was observed during troubleshooting.
Example:
"Exposure footswitch found disconnected, preventing trigger signal to generator."
Resolution
What action was taken.
Example:
"Reconnected footswitch and verified normal exposure operation."
Helpful Details to Include (If Known)
- E-stop status verified
- Door interlock status
- Compression and positioning confirmed
- Footswitch tested/swapped
- Error codes recorded
- Power stability checked
- System reboot performed
- Final device status (returned to service or escalated)
Final Thought
Exposure faults should always be approached from a safety-first and logic-driven perspective. Rule out interlocks, accessories, and system readiness before assuming generator failure. Proper escalation and clear documentation protect both the patient and the equipment lifecycle.
That is successful troubleshooting.