Wireless detectors · CXDI-401 Wireless family

Canon CXDI-401G/401C: troubleshooting and error codes

The ServiceForge knowledge base holds 14 documented symptoms for the Canon CXDI-401G/401C, with 40 ranked causes, 27 diagnostic checks with test points and expected values, and 0 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Wireless communication signal strength at Level 0 or unstable

GUI display shows Level 0 signal strength or signal strength level is not stable

Ranked causes

1. X-ray imaging room not tightly sealed or door open (common)
2. Distance between access point and detector too great (common)
3. Structure blocking communication between access point and detector (occasional)
4. Thermal therapy device, laser knife, cordless telephone near detector (occasional)
5. Interference from other wireless LAN signals (occasional)
6. Multiple DR Wireless SYSTEM in adjacent rooms transferring images simultaneously (occasional)
7. Trouble with PCA-WM-DB board inside detector (rare)
8. Trouble with access point (rare)

First check

Verify imaging room is sealed

Test point: X-ray imaging room doors and walls
Expected: room tightly sealed with all doors closed

4 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Detector infrared communication link not established

Three LEDs on detector fail to light after infrared communication attempt

Ranked causes

1. Defective connection between image capture computer and ready indicator unit (unknown)
2. LNK Controller does not start up (unknown)
3. AP/LNK configuration tool improperly set (unknown)
4. Trouble with ready indicator unit or infrared data communication unit (unknown)
5. Trouble with FPC-UIF board inside detector (unknown)
6. Trouble with PCA-WM-DB board inside detector (unknown)

First check

Verify image capture computer connection

Test point: connection between image capture computer and ready indicator unit
Expected: secure and undamaged connection

2 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

No X-ray exposure possible high voltage

Detector cannot trigger X-ray exposure despite proper setup

Ranked causes

1. Wireless communication trouble with X-ray generator RX_REQ signal (common)
2. Incorrect X-ray interface IP address setting (occasional)
3. X-ray interface cable disconnected or loose (occasional)
4. Defective PCA-XIF board in X-ray interface box (rare)
5. Accidental exposure during non-generator connection mode (rare)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

System error displayed in GUI

Error message appears on CCS GUI during operation

Ranked causes

1. Wireless communication trouble (common)
2. AC/DC box failure (occasional)
3. Detector malfunction (occasional)
4. Image capture computer hardware issue (rare)

First check

Collect system error information

Test point: CCS Control Software
Expected: Error guide available in CXDI Control Software NE Service Manual

1 more check with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Error during calibration

Error occurs when performing detector calibration

Ranked causes

1. X-ray exposure field misalignment (common)
2. Incorrect exposure dosage (common)
3. Detector malfunction during calibration (occasional)

First check

Perform performance test and self-diagnosis imaging

Test point: Control Software diagnostics
Expected: Test completion without additional errors

1 more check with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Understand detection limitations for non-generator connection

Detector has detection sensitivity characteristics that affect image capture in non-generator connection mode, with detection becoming difficult in specific exposure conditions.

Ranked causes

1. Short X-ray exposure time (pediatric imaging scenario) (occasional)
2. Small exposure field (finger, intraoral, cervical spine imaging) (occasional)
3. Insufficient X-ray dosage per unit time (lumbar spine imaging scenario) (occasional)

First check

Assess whether imaging scenario involves short exposure duration

Test point: Exposure time setting and clinical procedure type
Expected: Detection becomes difficult in region of short exposure time per diagram

2 more checks with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Abnormal image quality patient safety

Images produced show defects, artifacts, or quality degradation

Ranked causes

1. Detector defect or malfunction (common)
2. Detector pixel or line defect (occasional)

First check

Perform performance test and self-diagnosis imaging

Test point: Control Software diagnostics
Expected: Diagnostics complete without errors

3 more checks with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Detector infrared communication successful but blue-green LED not lighting

Three LEDs light for about 1 second with infrared communication and detector recognized, but blue-green LED fails to light

Ranked causes

1. Access point power not turned on (common)
2. Access point incorrectly configured using AP/LNK configuration tool (common)

First check

Verify access point power status

Test point: access point power indicator
Expected: power indicator illuminated

1 more check with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Firmware and FPGA update via wireless takes excessive time

Firmware or FPGA update progresses slowly when using wireless connection

Ranked causes

1. Wireless communication interference or poor signal (common)
2. Insufficient battery charge (common)

First check

Verify battery charge level

Test point: Detector battery indicator
Expected: 100% battery charge

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Detector LEDs blinking

Three or two LEDs on detector blinking during operation

Ranked causes

1. Wireless communication problem due to environmental or interference factors (common)

First check

Verify wireless signal strength

Test point: GUI signal strength indicator
Expected: stable signal Level 1 or higher

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Horizontal line artifacts in captured images radiation

Horizontal line appears on images with difference in level above and below the line during actual usage conditions

Ranked causes

1. Insufficient exposure dosage (common)

First check

Verify exposure dosage adequacy

Test point: Image review
Expected: No horizontal lines or level differences visible on captured images

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Image data transfer takes excessive time

Delayed data transfer of images taken from detector

Ranked causes

1. Wireless communication signal weakness or interference (common)

First check

Monitor signal strength during image transfer

Test point: GUI signal strength indicator
Expected: signal Level 1 or higher with stable reading

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Preview image display takes excessive time

Delayed display of preview image on GUI

Ranked causes

1. Wireless communication signal weakness or interference (common)

First check

Monitor signal strength during preview display

Test point: GUI signal strength indicator
Expected: signal Level 1 or higher with stable reading

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Rough edges in images with narrowed exposure field radiation

Edges of exposure field or parts outside exposure range appear rough when exposure field has been narrowed down

Ranked causes

1. Exposure field too narrow (common)

First check

Assess exposure field width

Test point: Image capture result
Expected: Exposure field wide enough with no rough edges on captured images

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.