What is Canon Medical (Toshiba) CT error code B2640000?

Error in XC. It is reported by the XC (X-ray Controller) on Alexion and Activion16 and Aquilion RX CT systems. Severity: Alarm — high severity; subsystem: X-ray controller (XC) / exposure.

What should a field engineer do about B2640000?

Confirm which focus (large/small) faults in IF Remote Adjust, then measure filament resistance at the tube terminals — an open fine-focus filament (OL) condemns the X-ray tube. Isolate the X-ray controller (XC) / exposure subsystem and follow the status-code troubleshooting in the service manual. FSELIB documents the full diagnosis and remedy for the Alexion / Activion16 / Aquilion RX.

Alarm — high severityX-ray controller (XC) / exposure

B2640000 — Error in XC

Canon Medical (Toshiba) CT error code, reported by the XC (X-ray Controller).

What B2640000 means

On Alexion and Activion16 and Aquilion RX CT systems, status code B2640000 indicates: Error in XC. The code originates in the X-ray controller (XC) / exposure section of the XC (X-ray Controller). Severity level A1 (Alarm — high severity).

Reported action: Confirm which focus (large/small) faults in IF Remote Adjust, then measure filament resistance at the tube terminals — an open fine-focus filament (OL) condemns the X-ray tube.

Toshiba / Canon Medical CT systems that use the XC (X-ray Controller) exposure subsystem, including the Alexion Access (TSX-033A), Activion16 (TSX-031A) and the Aquilion family. Field note: a persistent Error in XC that appears only on the small (fine) focus commonly points to an open fine-focus filament in the X-ray tube — in IF Remote Adjust the fault tracks the focus selection (clean on large focus, faulting on small), and a resistance check at the tube terminals shows the fine filament open (OL) while the coarse filament reads a fraction of an ohm.

Full troubleshooting for B2640000

The complete diagnosis, cause tree, and step-by-step remedy for the X-ray controller (XC) / exposure subsystem are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with real figures.

Open the Activion16 service manual

Related X-ray controller (XC) / exposure codes

00000001RECON unit ended abnormally, reconstruction queue full 00000002RECON unit timed out — restart the reconstruction queue 00000003RECON unit failed to start — delete the reconstruction queue 00000004Helical scan aborted, reconstruction request not accepted 00000005RECON unit error — incorrect parameter set / Stack Scan aborted 00000006AutoImageTransfer error / reconstruction sequence error 00000007Images skipped during EGR / AutoImageTransfer error 00000008Reconstruction request deleted — raw data outside available area

Related service procedures

Adjust the SS/ADI4 audio (gantry/console speaker and microphone VRs)Console Clean the console mouseConsole Replace disk array units (BSX74-2035E) — disk drive, power supply, and fan unitsConsole Replace disk drive, power supply, or fan units in the BSX74-1900E raw data disk arrayConsole Replace the host PC unitConsole Run the hwtest malfunction diagnosis program (Console)Console

Discuss B2640000 with other field engineers in the FSELIB forum

Source: Toshiba/Canon CT service error message table (errmsg.eng V4-62R004). Reference information re-authored by FSELIB — not a copy of the OEM manual.