• Code: PF 0
• Description: RIC copy inhibit signal reception
• Causes: The RIC copy inhibit command is received through RIC I/F from the host.
• Remedy: Case 1 Trouble position/cause The copy inhibit command is received from the host. Remedy (Check) (Repair) Use SIM 27-1 to ignore the copy inhibit command. / SIM 17 (After-work) Note Case 2 Trouble position/cause PCU MAIN PWB trouble Remedy (Check) RIC I/F circuit check (Repair) Replace the PCU MAIN PWB. / SIM 17 (After-work) Re-enter setup values and adjustment values. (Install the EEPROM of the defective PCU MAIN PWB to a new PCU MAIN PWB.)

• Code: U0 0
• Description: Operation control PWB - PCU MAIN PWB communication trouble (OPE/PCU detection)
• Causes: "Communication (protocol, data) error"
• Remedy: Case 1 Trouble position/cause Bad connection of the signal line between the PCU MAIN PWB and the operation control PWB Remedy (Check) Check the signal line between the PCU MAIN PWB and the operation control PWB. (Repair) Repair or replace the cable and the connector between the PCU MAIN PWB and the operation control PWB. / Power Source-ON Case 2 Trouble position/cause PCU MAIN PWB trouble Remedy (Check) (Repair) Replace the PCU MAIN PWB. / Power Source-ON (After-work) Re-enter setup values and adjustment values. (Install the EEPROM of the defective PCU MAIN PWB to a new PCU MAIN PWB.) Note Case 3 Trouble position/cause Operation control PWB trouble Remedy (Check) (Repair) Operation control PWB replacement / Power Source-ON

• Code: U0 80
• Description: PCU MAIN PWB - PCU SUB PWB communication trouble (PCU detection)
• Causes: "Communication (protocol, data) error"
• Remedy: Case 1 Trouble position/cause Bad connection of the signal line between the PCUMAIN PWB and the PCU SUB PWB. Remedy (Check) Check connection of the signal line between the PCU MAIN PWB and the PCU SUB PWB. (Repair) Repair or replace the cable and the connector of the PCU MAIN PWB and the PCU SUB PWB. / Power Source-ON (After-work) Note Case 2 Trouble position/cause PCU MAIN PWB trouble Remedy (Check) (Repair) Replace the PCU MAIN PWB. / Power Source-ON (After-work) Re-enter setup values and adjustment values. (Install the EEPROM of the defective PCU MAIN PWB to a new PCU MAIN PWB.) Note Case 3 Trouble position/cause PCU SUB PWB trouble Remedy (Check) (Repair) PCU SUB PWB replacement / Power Source-ON

• Code: U2 0
• Description: EEPROM read/write error (PCU MAIN PWB)
• Causes: EEPROM read/write error
• Remedy: Case 1 Trouble position/cause EEPROM trouble Remedy (Check) (Repair) Replace the EEPROM. / SIM 16 (After-work) Note Case 2 Trouble position/cause PCU MAIN PWB trouble Remedy (Check) (Repair) Replace the PCU MAIN PWB. / SIM 16 (After-work) Re-enter the set values and the adjustment values.

• Code: U2 11
• Description: Counter data (EEPROM) check sum error (PCU MAIN PWB)
• Causes: Counter data area check sum error
• Remedy: Case 1 Trouble position/cause EEPROM trouble Remedy (Check) (Repair) Replace the EEPROM. / SIM 16 (After-work) Note Case 2 Trouble position/cause PCU MAIN PWB trouble Remedy (Check) (Repair) Replace the PCU MAIN PWB. / SIM 16 (After-work) Re-enter the set values and the adjustment values.

• Code: U2 12
• Description: Setup/adjustment value data (EEPROM) check sum error (PCU MAIN PWB)
• Causes: Setup/adjustment data area check sum error
• Remedy: Case 1 Trouble position/cause EEPROM trouble Remedy (Check) (Repair) Replace the EEPROM. / SIM 16 (After-work) Note Case 2 Trouble position/cause PCU MAIN PWB trouble Remedy (Check) (Repair) Replace the PCU MAIN PWB. / SIM 16 (After-work) Re-enter the set values and the adjustment values.

• Code: U2 20
• Description: EEPROM read/write error (ICU MAIN PWB)
• Causes: EEPROM read/write error
• Remedy: Case 1 Trouble position/cause EEPROM trouble Remedy (Check) (Repair) Replace the EEPROM. / SIM 16 (After-work) Note Case 2 Trouble position/cause ICU MAIN PWB trouble Remedy (Check) (Repair) ICU MAIN PWB replacement / SIM 16 (After-work) Adjust ADJM9/M10/M12/M13/M14/M15/M17. / Re-enter setup values and adjustment values. (Install the EEPROM of the defective ICU MAIN PWB to a new ICU MAIN PWB.)

• Code: U2 21
• Description: Counter (EEPROM) check sum error (ICU MAIN PWB)
• Causes: Counter data area check sum error
• Remedy: Case 1 Trouble position/cause EEPROM trouble Remedy (Check) (Repair) Replace the EEPROM. / SIM 16 (After-work) Note Case 2 Trouble position/cause ICU MAIN PWB trouble Remedy (Check) (Repair) ICU MAIN PWB replacement / SIM 16 (After-work) Adjust ADJM9/M10/M12/M13/M14/M15/M17. / Re-enter setup values and adjustment values. (Install the EEPROM of the defective ICU MAIN PWB to a new ICU MAIN PWB.)