Loosen the six screws fastening the top cover. Carefully lift the top cover as shown in the direction of the arrow.
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Figure 4-3
4-4. OPE Unit
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Disconnect the harnesses from the Main PBA. Loosen the two screws fastening the Main PBA. Disconnect the harnesses from the LIU PBA. Remove the OPE unit from the base unit.
Main PCB