Alarm — high severityMUDAT (data transfer system)

B7300000 — Data transfer between the control PWBs in the gantry is abnormal

Canon Medical (Toshiba) CT error code, reported by the MUDAT (Multi-Data Transmitting System) — optical data-transfer link.

What B7300000 means

On Aquilion RX and Aquilion ONE CT systems, status code B7300000 indicates: Data transfer between the control PWBs in the gantry is abnormal. The code originates in the MUDAT (data transfer system) section of the MUDAT (Multi-Data Transmitting System) — optical data-transfer link. Severity level A1 (Alarm — high severity).

Reported action: Trace the control chain around the KGTSM, which is the hub: confirm it is receiving position and status information from the actuators and from the OPCONTA, and that its control signals are reaching the KGTSP. Check power and connectors on the gantry control PWBs (KGTSM, KGTSP, GCIFA/GCIFA-D, OPCONTA) and inspect the cabling between the rotation and stationary sections, then re-run the gantry operation check before replacing a board..

Toshiba / Canon Medical Aquilion RX and Aquilion ONE CT systems, on the gantry/couch control section. On Aquilion-family systems that section is built from a small set of PWBs — the KGTSM as the central controller, the KGTSP power PWB, the GCIFA and GCIFA-D, the OPCONTA, the SI PWB, the DD motor controller and the operating panels. The KGTSM checks operation requests and gantry/couch status, asks the OPCONTA to operate the rotating unit, and receives rotor status and position information back, so a break in that exchange stops gantry control.

Full troubleshooting for B7300000

The complete diagnosis, cause tree, and step-by-step remedy for the MUDAT (data transfer system) subsystem are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with real figures.

Open the Activion16 service manual

Related MUDAT (data transfer system) codes

B7100000The data transfer system in the gantry is abnormal (MUDAT)B7100001Error in MUDAT (ROTSOT -1) — rotation-to-stationary transfer errorB7100002Error in MUDAT (ROTSOT -2) — fatal rotation-to-stationary transfer errorB7100003Error in MUDAT (ROTSOT -3) — rotation-to-stationary transfer errorB7100004Error in switching channels in MUDAT (channel-switching failure)B7100005Error in MUDAT (ROTSOT -5) — rotation-to-stationary transfer errorB7100006Error in MUDAT — generic gantry optical data-transfer faultB7100007Error in MUDAT (ROTSOT -7) — rotation-to-stationary transfer error

Related service procedures

Run the console malfunction-diagnosis program (hwtest)Console (Diagnostics)Run the independent MHR PWB test (diagnostics) from the RTM terminalConsole (Diagnostics)Remove the host PC unit (PX74-07959 GR-1/GR-2)Console (Operation)Remove the host PC unit (PX74-08766 GR-1/GR-2)Console (Operation)Remove and install an RDD disk/power-supply unit (Rorke Data)Console (Recon)Remove and install an RDD fan unit (Rorke Data)Console (Recon)
Discuss B7300000 with other field engineers in the FSELIB forum

Source: Toshiba/Canon CT service error message table (errmsg.eng); Aquilion 16 service manual, gantry/couch control chapter (2D201-063E). Reference information re-authored by FSELIB — not a copy of the OEM manual.