1. Remove the controller board (PCB3) with the BiCU (PCB2) from the controller box. (Controller Board (PCB3))
  2. Remove the BiCU (PCB2)  [A] from the controller board (PCB3) [B].

  3. Remove the NVRAM [A] from the old BiCU (PCB2) and attach it to the new BiCU (PCB2).

    • Attaching the used NVRAM to the new BiCU (PCB2) allows users to use old data such as SP settings.
    • Make sure the serial number is input in the machine for the NVRAM data with SP5-811-004. If not, SC995-001 occurs. Install a NVRAM [A] so that the indentation [B] on the NVRAM corresponds with the mark on the BiCU (PCB2). Incorrect installation of the NVRAM will damage both the BiCU (PCB2) and NVRAM.