• Code: 702-02
• Description: Protected element block error 2 (ARDF) (D158/D159)
  Protected element block is detected.
• Causes: • Defective motor • Defective solenoid • Harness shorted

• Code: 702-03
• Description: Protected element block error 3 (ARDF) (D158/D159)
  Protected element block is detected.
• Causes: • Defective motor • Defective solenoid • Harness shorted

• Code: 760
• Description: ADF gate abnormal 1
  The ARDF Gate signal line between the ARDF main board and the BICU is disconnected.
• Causes: • ARDF main board • Input/output board • Poor connection (ARDF Gate line) between the ARDF main board and the BICU.

• Code: 901
• Description: Mechanical total counter
  The mechanical total counter does not work properly.
• Causes: • Defective total counter • Loose connection • Defective IOB

• Code: 903
• Description: Engine total counter error (D160/D161/D170)
  The checksum of the total counter is not correct.
• Causes: • NVRAM on the BICU

• Code: 928
• Description: Memory error (D160/D161/D170)
  The machine detects a discrepancy in the write/read data during its write/read test (done at power off/on and at recovery from low power or night/off mode).
• Causes: • BICU • Poor connection between BICU and memory

• Code: 929
• Description: IMAC error (hardware) (D160/D161/D170)
  Error register for IMAC is on, while IMAC is operating. Mechanical problem (e.g. interlock does not turned off when right door is open and .bypass tray is used at the same time.)
• Causes: • Defective BICU • Defective interlock switch

• Code: 981
• Description: NV-RAM error (D160/D161/D170)
  If the machine fails to read the specific value written onto the NV-RAM on program startup, an SC code appears.
• Causes: • Defective NV-RAM • NV-RAM is not installed