10.4 SCU BOARD REPLACEMENT
1. Turn off the main switch and unplug the machine.
2. Remove the rear cover (See Outer Cover Removal).
3. Replace the SCU board [A] (4 screws, all connectors).
4. Remove the NV RAM [B] from the old SCU board and install it on the new
board.
5. Remove the ROMs [C] from the old SCU board and install them on the
new board.
6. Make sure that the DIP switch settings on the new board are the same as
those on the old board.
10.5 BCU BOARD REPLACEMENT
1. Turn off the main switch and unplug the machine.
2. Remove the rear cover (See Outer Cover Removal).
3. Replace the BCU board [D] (6 screws and all connectors).
4. Make sure that the DIP switch settings on the new board are the same as
those on the old board.
[A]
[B]
[C]
[D]
A195R658.wmf
INNER AND OUTER COVERS
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