Description: Optional DRAM error
The machine detects a discrepancy in the Optional DRAM write/read data during its write/read test (done at power off/on and at recovery from low power or night/off mode).
Causes: • Non-supported DRAM connected • Poor connection between IMB and optional DRAM • Optional DRAM defective • IMB defective • BiCU defective
Code: 925
Description: IMB non-connected error
IMB is not connected. This SC only appears with B040 and B043 version machines.
Causes: • IMB is not connected • Poor connection between BiCU and IMB • IMB defective • BiCU defective
Code: 926
Description: Memory capacity error
The machine detects a discrepancy between the memory capacity detected during the memory check at power on and the check at recovery from low power or night/off mode.
Causes: • Poor connection between optional DRAM and IMB • Optional DRAM defective • IMB defective • BiCU defective
Code: 981
Description: NVRAM error
The machine detects a discrepancy in the NVRAM write/read data when attempting to save actual data to the NVRAM (i.e. during actual use).
Causes: • NVRAM defective • Poor connection between BiCU and NVRAM • NVRAM is not connected • BiCU defective
Code: 990
Description: Communication error between BICU and IOB
The BiCU board cannot communicate with the IOB.
Causes: • The connection between the BiCU board and the IOB is poor. • BiCU board defective • IOB defective
Code: 999
Description: Program version error
An incorrect type of main software was downloaded.
Causes: • The main software for another machine was downloaded to this machine. Switch the machine off. Connect an IC card that has the correct firmware to the machine. Switch the machine on, and download the firmware (see section 5.1.9).