2.4 Initial Checks (Performance Check)
2.4.1 Checking the position of the contour illumination bulb filament
1. Carefully remove the projection lens.
2. Turn on the power switch and contour illumination switch to project the filament
of the contour illumination bulb on the screen.
3. Confirm that the filament image is projected in the approximate center of the
screen.
2.4.2 Checking the position of the surface illumination bulb filament
1. Carefully remove the projection lens.
2. Rotate the frame of the surface illuminator condenser lens clockwise until it is
fully inserted.
3. Place the half-reflecting mirror (for 10x or 20X lens) on the cross-travel stage.
Adjust the mirror position so that the light from the reflected illuminator is
reflected at right angles. Adjust the reflected illuminator position so that the light
beam is directed at the center of the mirror.
4. Turn on the main switch and contour illumination switch to project the filament of
the contour illumination bulb on the screen.
5. Confirm that the filament image is projected in the approximate center of the
screen.
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