Sanyo PLC-EF31 Service Manual page 52

Multimedia projector
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I Prism P.B.S. adjustment
SLOT-A
SCREW-B
SCREW-B
I Polarizer adjustment
LEVER-B
SCREW-A
Adjustment :
1. Remove the flexible cables of LCD panels from the
assembly Main. And turn on the projector.
2. Loosen two screws-B.
3. Insert a slot screwdriver into slot-A, turn it and
adjust the center position of screen to maximum
brightness.
4. Tighten the two screws-B to fix the prism PBS unit.
SCREW-A
Adjustment :
1. Turn on a projector. And input the black raster signal(0%
of white raster signal.)
2. Loosen two screws-A on the polarizer unit which you
intend to adjust using ball allen wrench.
3. Move the lever-B in the direction of an arrow and adjust
the brightness on the screen to the lowest level of black.
4. Tighten the two screws-A to fix the polarizer unit.
5. Repeat steps 2 to 4 and adjust the polarizer of other col-
Y/V
ors.
-52-
Y8

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