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CPU Board
Chapter 11 Replacing Parts 141
CPU Board
To remove the CPU board:
1. Remove the top cover.
2. Disconnect the cables (B, C, D, E and F).
3. Remove the six screws (S).
4. Lift out the board.
To refit the board, reverse the above procedure. After refitting the board, carry out the
Parameter Test.
Do not forget to program the serial number into the new CPU board using the service
software. See “Writing/Resetting the Serial Number and Setting the Options” on page 41.