Optical Adjustments; Contrast Adjustment - Sanyo PLC-WL2500A Service Manual

Optical Adjustments

Before taking optical adjustments below, remove the AV panel and cabinet top following to the "Mechanical disas-
sembly".
Optical adjustment requires a 2.0mm hex wrench and a slot screwdriver.
WArNING : uSe uV rAdIAtION eYe ANd SKIN PrOteC-
CAutION: to prevent suffer of uV radiation, those adjust-

Contrast adjustment

[Before adjustment]
- Input a 100% of black raster signal.
1
A (Fig.1)
L oosen a screw
mounting base which you intend to adjust.
2
B
A djust the slot to obtain the darkest brightness on
the screen by using a slot screwdriver.
3
A
T ighten the screw to fix the polarized glass mount-
ing base.
Repeat steps 1 to 3 for remaining polarized glasses.
- T his adjustment should be taken in order of G-panel,
R-panel and B-panel.
- T his adjustment should be taken in the darkest room to
adjust preciously.
tION durING SerVICING
ment must be completed within 25 minutes.
on the polarized glass
B
Fig.1
-26-
A
B
A
B
A