XG-P20XE. Version 1.4 - Sharp Projector Handy Guide. Page 49

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The optical axis must be readjusted if an eclipse happens with the R. G or B mirrors.
Generally speaking, this adjustment is needed when any of the internal optical
components has been replaced.
Adjustment procedure required when any of the panels has been replaced or the
convergence has been adjusted
(1) Disconnect the flat cables of all the LCD panels.
(2) Let the lamp light up.
(3) To adjust the G mirror, shield the R and B mirrors with shielding plates (You can use a
business card or the like to block the light).
(4) Loosen the lock screw of the M1 adjust lever.
(5) Looking at the G image on the screen, turn or slide the M1 adjust lever until the eclipse on
the screen disappears. Tighten up the screw.
(6) To adjust the R mirror, shield the G and B mirrors and adjust the M5 adjust lever. For the
B mirror, shield the R and G mirrors and adjust the M6 adjust lever. (Take the same steps 4
and 5 above.)
(7) Remove all the shielding plates to have a white image. Make sure there is no eclipse.