718 Replacement of Incidence Polarizer G

1. Remove the A-P.C.Board block according to the steps 1 through 6 in the section 7.3. "Removal of A-P.C.Board".

2. Mark positions of the incidence polarizer (G). Note:

• Mark accurately as possible because the marks will be used for resetting the incidence polarizer position.

3. Unscrew the 1 screw and remove the incidence polarizer

4. Attach a new incidence polarizer (G) and align it with the mark.

5. Tighten the 1 screw with care not to move the incidence polarizer position.

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