• Code: E746-0031
• Description: TPM error
  A communication error has occurred between the Main Controller PCB and the TPM PCB at startup.
• Remedy: [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Turn OFF and then ON the main power, and check whether the error is cleared. 2. After turning OFF the main power, replace the TPM PCB (UN82) (Unit of replacement: TPM PCB ASSEMBLY). 3. If the TPM key was backed up, restore the key. 3-1. Connect the USB memory which stores the TPM key. 3-2. Execute “Settings/Registration> Log In> Management Settings> Data Management> TPM Settings> Restore TPM Key”. [Caution] Ask the customer to enter “System Manager ID” and “Password” when logging in. 3-3. Enter the password set at backup operation. 3-4. When the restoration completion screen is displayed, click “OK”. Remove the USB memory, and turn OFF and then ON the main power.

• Code: E746-0032
• Description: TPM error
  TPM key mismatch
• Remedy: [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Format the system. 1-1. Enter safe mode using (2+8) startup, and execute [4] Clear/Format> [2] Flash Format (Flash format) using a USB memory. 2-2. Reinstall the system software using SST or a USB memory. 2. Replace the TPM PCB (UN82) (Unit of replacement: TPM PCB ASSEMBLY). 3. If the TPM key was backed up, restore the key. 3-1. Connect the USB memory which stores the TPM key. 3-2. Execute “Settings/Registration> Log In> Management Settings> Data Management> TPM Settings> Restore TPM Key”. [Caution] Ask the customer to enter “System Manager ID” and “Password” when logging in. 3-3. Enter the password set at backup operation. 3-4. When the restoration completion screen is displayed, click “OK”. Remove the USB memory, and turn OFF and then ON the main power.

• Code: E746-0033
• Description: TPM error
  It was detected that data in TPM was inconsistent.
• Remedy: [Remedy] Perform the following in the order while checking whether the error is cleared. Perform the appropriate remedy according to the status whether the TPM key was backed up. a. If the TPM key was backed up, restore the key. 1. Connect the USB memory which stores the TPM key. 2. Execute “Settings/Registration> Log In> Management Settings> Data Management> TPM Settings> Restore TPM Key”. [Caution] Ask the customer to enter “System Manager ID” and “Password” when logging in. 3. Enter the password set at backup operation. 4. When the restoration completion screen is displayed, click “OK”. Remove the USB memory, and turn OFF and then ON the main power. b. If the TPM key was not backed up, format the system. 1. Enter safe mode using (2+8) startup, and execute [4] Clear/Format> [2] Flash Format (Flash format) using a USB memory. 2. Reinstall the system software using SST or a USB memory.

• Code: E746-0034
• Description: TPM auto recovery error
  The error occurred when clearing HDD while TPM setting was ON.
• Remedy: [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Turn OFF and then ON the main power, and check whether the error is cleared. a. If the error is cleared, execute “Settings/Registration> Log In> Management Settings> Data Management> Initialize All Data/Settings”. b. If the error is not cleared, format the system. 1. Enter safe mode using (2+8) startup, and execute [4] Clear/Format> [2] Flash Format (Flash format) using a USB memory. 2. Reinstall the system software using SST or a USB memory. 2. If the TPM key was backed up, restore the key. 2-1. Connect the USB memory which stores the TPM key. 2-2. Execute “Settings/Registration> Log In> Management Settings> Data Management> TPM Settings> Restore TPM Key”. [Caution] Ask the customer to enter “System Manager ID” and “Password” when logging in. 2-3. Enter the password set at backup operation. 2-4. When the restoration completion screen is displayed, click “OK”. Remove the USB memory, and turn OFF and then ON the main power.

• Code: E746-0035
• Description: TPM version error
  TPM PCB which cannot be used in this machine was installed.
• Remedy: [Remedy] Install the TPM PCB (UN82) for this model. (Unit of replacement: TPM PCB ASSEMBLY)

• Code: E748-2010
• Description: Flash PCB error / HDD error
  IPL (startup program) was not found, or the HDD could not be recognized.
• Remedy: [Related parts] - Cable between the Main Controller PCB (UN81/J7008 and J7018) and the HDD (Unit of replacement: CABLE, SATA POWER, CABLE, SATA SIGNAL) - Flash PCB (UN96) [Points to note at work] When checking the harness/cable or connector, perform the following work. 1. Disconnect and then connect the connector to check that there is no bent pin and cable disconnection. 2. Visually check that the harness is not caught or open circuit. 3. If there is any error, replace the corresponding harness/cable. [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 SST or a USB memory. 3. After replacement of 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.

• Code: E748-9000
• Description: System error
• Remedy: Contact to the sales company.

• Code: E749-0005
• Description: Error due to change in hardware configuration
  There was a change in option configuration that requires turning OFF and then ON the main power.
• Remedy: [Remedy] Turn OFF and then ON the main power. [Reference] It is configured to recognize the options again by turning OFF and then ON the main power.