4.Replacement and Adjustment
153
Controller Board
ï‚· If you intend to replace the NVRAM, upload its contents to an SD card using SP5-824 before you replace
the NVRAM. Never remove the NVRAM until after you have uploaded its contents.
Replacement Procedure
1. Remove the controller box cover. (Speaker)
2. Remove the bracket with the FCU board. (FCU Board)
3. Remove the lower cover [A].
4. Remove the controller box.
5. Detach the controller board [A] by sliding it to the right.
6. Remove the NVRAM [C], the upper brace [A] and the lower brace [B].
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