Electrical Components
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3. Remove the NVRAM from the old BiCU and attach it to the new BiCU.
• Attaching the used NVRAM to the new BiCU allows users to use old data such as SP settings.
• SC995 occurs when replacing the BiCU. Execute SP5-811-004 then turn the main power off and
on.
• Install a new NVRAM [A] so that the indentation [B] on the NVRAM corresponds with the mark
on the BiCU. Incorrect installation of the NVRAM will damage both the BiCU and NVRAM.
Replacing the NVRAM (EEPROM) on the BiCU
• The following shows the procedure for replacing the NVRAM on the BiCU with a new NVRAM.
1. Make sure that you have the SMC report (factory settings). This report comes with the machine.
2. Output the SMC data (“ALL”) using SP5-990-001/SP5-992-001.
3. Turn off the main switch.
4. Insert a blank SD card in the SD slot #2, and then turn on the main switch.
5. Use SP5-824-001 to upload the NVRAM data from the BiCU
6. Turn off the main power switch and unplug the power cord.
7. Replace the NVRAM on the BCU with a new one.
• Install a new NVRAM [A] so that the indentation [B] on the NVRAM corresponds with the mark
on the BiCU. Incorrect installation of the NVRAM will damage both the BiCU and NVRAM.
8. Plug in, and then turn on the main switch.
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