Adjustment Of The Polarization Plate (Contrast Adjustment) - Ricoh Sirius-PJ1 Field Service Manual

3. Replacement and Adjustment
(Make adjustments until the portions in magenta or reddish color are eliminated vertically and
uniformly in the projector screen.)
• Horizontal shadow adjustment for G and B
Move the holder (FL1) horizontally and eliminate the horizontal shadow. (Equally balanced in
horizontal directions)
(Make adjustments until the portions in magenta or reddish color are eliminated horizontally and
uniformly in the projector screen.)
• Shadow adjustment for B only
It is possible to adjust the fall. Move the holder (M1) and eliminate the shadows in all directions.
(Equalize the shadows both vertically and horizontally.)
(Make adjustments until the portions in amber or yellowish color are eliminated vertically,
horizontally, and uniformly in the projector screen.)
• Horizontal shadow adjustment for R
Move the holder (RL2) horizontally and eliminate the horizontal shadow. (Equally balanced in
horizontal directions)
(Make adjustments until the portions in cyan are eliminated horizontally and uniformly in the
projector screen.)
• Vertical shadow adjustment for R
Move the holder (RL2) vertically and eliminate the vertical shadow. (Equally balanced in vertical
directions)
(Make adjustments until the portions in cyan color are eliminated vertically and uniformly in the
projector screen.)
• Cleaning after shadow adjustments
When the lamp is turned off after the adjustment of the polarizing plate, about 30 seconds of
cooling shall be carried out. Then the power supply is turned off.

Adjustment of the polarization plate (Contrast adjustment)

Outlined description of adjusting work
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