Sanyo PLC-XL51A, Service Manual, Page: 43 / 146

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[Before Adjustment]
- Input a 100% of black raster signal.
1
Loosen a screw
A (Fig.1)
on the polarized glass mounting base which
you intend to adjust.
2
Adjust the slot
B
to obtain the darkest brightness on the screen by using
a slot screwdriver.
3
Tighten the screw
A
to fix the polarized glass mounting base.
Repeat steps 1 to 3 for remaining polarized glasses.
Fig.1
Polarized glass
mounting base
A
Contrast adjustment
Before taking optical adjustments below, remove the Cabinet Top following to the “Mechanical Disassembly”.
Adjustments require a .0mm hex wrench and a slot screwdriver. When you adjust Integrator lens or Relay lens adjustment,
you need to disconnect FPC cables of LCD panels on the main board.
Optical adjustment requires a .0mm hex wrench and a slot screwdriver.
Note: Do not disconnect connectors on the main board, because the projector cannot turn on due to operate the power
failure protection.
WARNING : USE UV RAdIAtIoN EYE ANd SKIN PRotEC-
tIoN dURING SERVICING
CAUtIoN: to prevent suffer of UV radiation, those adjustment must be com-
pleted within 25 minutes.
Slot B
■
Optical Adjustments