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3-20 Service Manual
4510-001
Main Board and Input/Exit Sensor Board
1. Before removing the main board, remove the rear cover, metal
bottom cover, and the LVPS board.
2. Unplug all connectors, remove two screws from the main board,
and then remove the board.
3. To remove the input/exit sensor board, release four snap-fits
securing the insulator and then remove the insulator.