• Code: 836
• Description: Self-diagnostic error - Font ROM The data in the font ROM on board is damaged.
• Causes: • Defective font ROM.
• Remedy: 1. Turn the main switch off and on. 2. Replace the controller board.

• Code: 837
• Description: Self-diagnostic error - Optional font ROM The data in the font ROM (optional ROM-DIMM) is damaged.
• Causes: • Defective optional ROM-DIMM.
• Remedy: 1. Turn the main switch off and on. 2. Replace the optional ROM-DIMM.

• Code: 850
• Description: NIB interface error NIB interface error detected.
• Causes: • Defective controller
• Remedy: Replace the controller.

• Code: 851
• Description: IEEE1394 interface error IEEE1394 interface error detected.
• Causes: • Defective controller
• Remedy: Replace the controller.

• Code: 853
• Description: IEEE802.11b error - card not detected (power-on) Wireless LAN card not detected at power-on.
• Causes: • Poor connection • Defective wireless LAN card • Defective controller
• Remedy: 1. Check the wireless LAN card connection. 2. Replace the wireless LAN card.

• Code: 854
• Description: IEEE802.11b error - card not detected (during operation) Wireless LAN card not detected during operation.
• Causes: • Poor connection • Defective wireless LAN card • Defective controller
• Remedy: 1. Check the wireless LAN card connection. 2. Replace the wireless LAN card.

• Code: 855
• Description: IEEE802.11b error Wireless LAN card error detected.
• Causes: • Poor connection • Defective wireless LAN card • Defective controller
• Remedy: 1. Check the wireless LAN card connection. 2. Replace the wireless LAN card.

• Code: 856
• Description: IEEE802.11b interface board error Wireless LAN interface board error detected.
• Causes: • Poor connection • Defective wireless LAN interface board
• Remedy: 1. Check the wireless LAN interface board connection. 2. Replace the interface board.