8. Release the hooks [F], and then pull out the rails [G].
9. Controller board
• When replacing the controller board, remove the NVRAMs from the board. Install the NVRAMs
to the new board.
When replacing the NVRAM on the controller board
1. When you replace the NVRAMs [A], make sure that the NVRAMs are correctly installed.
2. The mark [B] on the NVRAM should be directed to the right side (seem from the back side of the
machine).
3. Reassemble the machine.
4. Copy the old NVRAM data to the new NVRAM with SP5-825 or input the SMC data in the machine.
(For details, refer to the "NVRAM Data Upload/Download [SP5-824/825]" in the chapter "Service
Tables" of the this manual)
3. Replacement and Adjustment
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