PCBs and Other Items
SM 3-53 D017/D018/D019/D020
Replacement
and
Adjustment
5. If you have replaced the controller board, set the DIP switches on the new controller
board to the same settings as the old board.
After installing the controller board
1. For a model without a HDD, do SP5846-052 to copy back the address book to the
flash ROM on the controller board from the SD card to which you have already copied
the address book data if possible.
2. For a model in which the HDD encryption unit has been installed, restoring the
encryption key is required. Refer to “Recovery from a Device Problem” in the
installation procedure for "HDD Encryption Unit".
3. Turn the main power switch off/on.
3.9.2 NVRAM
1. Do SP5990 001 to print the SMC report.
2. Turn off the main switch.
3. Remove the controller board cover ( x1).
4. Put the SD card in SD card slot C3.
5. Turn on the main switch.
6. Do SP5824.
7. Touch “Execute” to start to upload the NVRAM data.
8. Turn off the main switch and remove the SD card.
9. Remove the controller board ( x1). (See ‘Controller Board’)
10. Remove the NVRAM (x2) and replace them with the new chips. (See ‘Controller
Board’)
Both NVRAM chips must be replaced.
11. Install the controller board.
12. Put the SD card with the NVRAM data in SD card slot C3.
13. Turn on the machine.
14. Do SP5801 to initialize the new NVRAM.
15. To download the NVRAM data from the SD card in C3, do SP5825.
16. Touch “Execute” to start to download the NVRAM data.
17. Turn off the main switch and remove the SD card.
18. Turn on the machine.
19. Do SP5990 001 to print another SMC report.
20. Compare this new SMC report with the report you printed in Step 1. If any of the SP
settings are different, input the SP settings of the first report.
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