• Code: U6-50
• Description: Desk incompatibility trouble
  Detection of desk connection incompatible with the MX-2300/2700 **
• Causes: Connection of a desk which is incompatible with the MX-2300/2700 ** is detected.
• Remedy: Connect the MX-DEX1/DEX2.

• Code: U6-51
• Description: LCC incompatibility trouble
  Detection of LCC connection which is incompatible with the MX-2300/2700 **.
• Causes: Connection of the LCC, which is incompatible with the MX-2300/2700 ** is detected.
• Remedy: Connect the MX-LCX1.

• Code: UC-02
• Description: CPT-ASIC abnormality
  CPT-ASIC access error (When the ASIC does not operate normally.)
• Causes: CPT-ASIC abnormality, SCU PWB abnormality
• Remedy: Turn OFF/ON the power several times. If the trouble still occurs, replace the SCU PWB or the CPT-ASIC.

• Code: UC-20
• Description: Document control module trouble
  Communication error between SCU and DOCC Communication line test error when turning on the power or after canceling an exclusion simulation.
• Causes: Connector or harness connection error or disconnection Control PWB (SCU) trouble, DOCC PWB trouble. Malfunction due to electrical noises.
• Remedy: Case 1 Cause Connector or harness connection error or disconnection Check and remedy Check the connector and harness in the communication line. Case 2 Cause Control PWB (SCU) trouble, DOCC PWB trouble. Check and remedy Replace the SCU PWB or the DOCC PWB. Case 3 Cause Malfunction due to electrical noises. Check and remedy Turn OFF/ON the power to electrical cancel the trouble.