• Code: 804
• Description: Startup without video input end (K)
  A video transmission was requested from the scanner, but the scanner did not issue a video transmission end command within the specified time.
• Causes: Controller board defective

• Code: 818
• Description: Watchdog error
  The CPU does not access the watchdog register within a certain time.
• Causes: • Controller board defective • Software malfunction – download controller firmware again

• Code: 819
• Description: Kernel mismatch error
  Software bug
• Causes: Download controller firmware again

• Code: 820
• Description: Self-Diagnostic Error: CPU
  The central processing unit returned an error during the self-diagnostic test.
• Causes: • Controller board defective • Download controller firmware again

• Code: 821
• Description: Self-Diagnostic Error: ASIC
  The ASIC returned an error during the self-diagnostic test because the ASIC and CPU timer interrupts were compared and determined to be out of range.
• Causes: Controller board defective

• Code: 822
• Description: Self-Diagnostic Error: HDD
  The hard disk drive returned an error during the self-diagnostic test.
• Causes: • HDD defective • HDD connector defective • Controller board defective

• Code: 823
• Description: Self-diagnostic Error: NIB
  The network interface board returned an error during the self-diagnostic test.
• Causes: • Network interface board defective • Controller board defective

• Code: 824
• Description: Self-diagnostic Error: NVRAM
  The resident non-volatile RAM returned an error during the self-diagnostic test.
• Causes: • Replace the NVRAM on the controller board • Replace the controller board