XG-NV21SE (serv.man4). Resetting the total lamp timer, The optical unit outline, Covergence and focus adjustment, Electrical adjustment, Adjusting the PC board, Troubleshooting table - Page 15-43 - Sharp Projector Service Manual (repair manual). Page 2

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16
XG-NV21SE
XG-NV21SM
XG-NV21SA
THE OPTICAL UNIT OUTLINE
Layout of the optical system
Note: Layout for positioning the optical system.
* The M3 mirrors have a coating
wedge (for different film thick-
ness).  Set up these mirrors, with
their markings positioned as
shown above, so that their
coated faces and both sides be
in the correct directions.
B-LCD
G-LCD
GREEN
BLUE
BLUE
RED
R-LCD
Dichroic coating
(B transmission)
Dichroic coating
(B reflection)
Incident polarizing plate R
Dichroic coating
(R transmission)
AL-coated mirror R
AL-deposited face
(R reflection) 
Marking
Dichroic coating
(G reflection)
Marking
G reflector
Dichroic coating
B/G reflector
AL-coated mirror W
AL-deposited
face
Fly-eye lens (outgoing light)
Fly-eye lens (incoming light)
UV-IR coating
PBS aperture
UHP lamp
(Light source)
Relay lens 1
AL-deposited face
AL-coated mirror B
Projection Lens
 B reflector
Cross dichroic prism
Incident polarizing plate B
Relay lens 3
Relay lens 2
Incident polarizing plate G
Condenser lens G
Marking
Condenser lens R
* M3
M6
G03
L2
G02
L2
G01
M4
M2
M5
M1
PBS(polarization
      beam splitter)
L1
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