Optical Adjustments; Contrast Adjustment - Sanyo PLC-SW10 Service Manual

Optical Adjustments

CONTRAST ADJUSTMENT

[Before Adjustment]
- Adjustment requires a 2.0mm hex wrench and a slot screwdriver.
- Remove cabinet top following to "Mechanical Disassemblies".
- Input a 100% of black raster signal.
Note: Do not disconnect the connectors on main and component
boards otherwise the projector can not be turned on.
[R/G/B-CONTRAST ADJUSTMENT]
1. Shield the unnecessary lights by inserting the thick paper etc. in front
of the LCD panels .
When adjusting the R-Contrast, project red light only.
When adjusting the G-Contrast, project green light only.
When adjusting the B-Contrast, project blue light only.
A
2. Loosen a screw (Fig.1-1/1-2) on the polarized glass mounting
base which you intend to adjust.
B
3. Adjust a slots as shown in Fig.1-1 to obtain the darkest brightness
on the screen by turning a slot screwdriver.
A
4. Tighten the screw to fix the polarized glass mounting base.
Repeat steps 1 to 4 for remaining polarized glasses.
A
B-Polarized Glass
Mounting Base
Slot B
G-Polarized Glass
A
Mounting Base
-20-
glass
Polarized
mounting base
R-Polarized Glass
Mounting Base
A
Main Board
A
Fig.1-
1
Fig.1-
2