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Front End Board
Chapter 11 Replacing Parts 139
Front End Board
To remove the board:
The illustration above shows removal of a rectangular shaped board. The replacement board
is triangular in shape. The design change does not affect the positioning or function of the
board.
Remove the top cover.
1. Disconnect the cable (B).
2. Remove the screws (S).
3. Gently pull the front panel a little to give enough room.
4. Lift out the board.
To refit the board, reverse the above procedure. If you are replacing Front End Board
M1353-69512 with M1350-69517, the transparent plastic cover above the CPU board will
not fit. This cover is no longer necessary. You may discard it.
Note— Before tightening the screws to secure the Front End Board, slide the board
as far as possible toward the front of the unit. This ensures that the
connectors are in their correct positions.
Carry out the Parameter Test (see page 68).