• Code: 747-FF00-00
• Description: Board error
• Causes: There was unexpected interruption from ASIC.
• Remedy: [Related parts] R1.00 - Harness betweens the Reader Controller PCB (UN_BO1/J109) and the Riser PCB (J7) - Bypass PCB (when non-Canon-made controller is installed) - Open I/F PCB (when non-Canon-made controller is installed) - Riser PCB - Main Controller PCB - HDD [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 747-FF01-00
• Description: Board error
• Causes: There was unexpected interruption from ASIC.
• Remedy: [Related parts] R1.00 - Harness betweens the Reader Controller PCB (UN_BO1/J109) and the Riser PCB (J7) - Bypass PCB (when non-Canon-made controller is installed) - Open I/F PCB (when non-Canon-made controller is installed) - Riser PCB - Main Controller PCB - HDD [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 748-2000-00
• Description: Main Controller PCB access error
• Causes: Main Controller PCB Chip access error.
• Remedy: Replace the Main Controller PCB

• Code: 748-2001-00
• Description: Main Controller PCB access error
• Causes: Main Controller PCB memory access error.
• Remedy: Replace the Main Controller PCB

• Code: 748-2010-00
• Description: Flash PCB error
• Causes: IPL (startup program) was not found, or the HDD could not be recognized.
• Remedy: [Related parts] R1.00 - Cable between the Main Controller PCB and the HDD - SATA-FLASH PCB [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Disconnect the cable between the Main Controller PCB and the HDD, and turn ON the main power. a. When the error code has not been changed: 1. Obtain the necessary backup data by referring to the backup data list. 2. Enter safe mode using (2+8) startup, and execute [4] Clear/Format> [2] Flash Format (Flash format) using a USB memory. 3. After replacing the Flash PCB, reinstall the system software using SST or a USB memory. 4. Restore the backup data. b. When the error code has been changed to another one, see the remedy for the corresponding code. [Reference] For backup and restoration, refer to "Adjustment> Main Controller System" and "Appendix> Backup Data List" in the Service Manual.

• Code: 748-2011-00
• Description: Flash PCB error
• Causes: OS was not found at startup.
• Remedy: Replace the SataFlash PCB.

• Code: 748-2012-00
• Description: Flash PCB error
• Causes: The OS could not be installed or there was no OS start script at startup in safe mode.
• Remedy: Replace the SataFlash PCB.

• Code: 748-2021-00
• Description: Main Controller PCB access error
• Causes: Main controller board access errors
• Remedy: Replace the Main Controller PCB