Contrast Adjustment - Sanyo PLV-55WR1Z Service Manual

Optical adjustment
1-3. Co 1-3. Contrast adjustment (R,G,B) ontras o djus me t (R,G B)
R, G and B Contrast adjustment : G B
1. Turn the LCD projection TV on and input a 100% of
black raster signal (0% of white raster signal).
2. Loosen screw A on the polarizer unit which you intend to
adjust using ball allen wrench.
3. Turn the polarized glass mounting base (slot B) by using
a slot screwdriver and adjust the brightness on the
screen to the lowest level of black.
4. Tighten the screw A to fix the polarizer unit.
5. Adjust the polarizer unit of other colors.
(Repeat steps 2 to 4.)
Slot-B
Screw-A
- 56 -
Screws-A
B-Polarized glass
Mounting base
S Slots-B ot B
Fig. 50a
R-Polarized glass
Mounting base
G-Polarized glass
M Mounting base unti ng bas e
Fig. 50b