Sanyo PLC-XU50, Service Manual

Page: 14 / 90

LCD Panel/
Prism Ass’y
B
A
-14-
1
Insert the hexial driver into a hole on the cabinet bottom
and loosen 1 screw
A
on the Prism base.
2
Loosen 2 screws
B
on the LCD Panel/Prism ass’y.
3
Pull the LCD Panel/Prism ass’y upward off from the opti-
cal unit.
Note:
Do not remove the LCD panels from the Prism ass’y. Do not
replace the LCD panel separately otherwise it cannot obtain
proper picture.
Fig.5
b
LCD Panel/Prism Ass’y removal
Optical Parts Disassemblies
IMPORTANT NOTICE on LCD Panel/Prism Ass'y Replacement
LCD panels used for this model can not be replaced separately. Do not disassemble the LCD Panel/Prism Ass’y.
These LCD panels are installed with precision at the factory. When replacing the LCD panel, should be replaced
whole of the LCD panels and prism ass’y at once.
After replacing LCD Panel/Prism ass’y, please check the following points.
- Check that there is no color shading at the top, bottom, left or right of the screen. If there is, try to remove
the shading following to the chapter “Optical Adjustment”.
- Check the white balance. If it needs the adjustment, adjust the white balance following to the “White Balance
Adjustment” , “Gamma Adjustment” and “Common Centre Adjustment” in the chapter “Electrical Adjustment”.
- Check the white uniformity on the screen.
If you find the color shading at the some part of the screen, it needs to take the color shading adjustment.
This adjustment should be performed by a computer and it also requires a special software “Color Shading
Correction”. The software will be supplied separately and can be ordered as follows;
COLOR SHADING CORRECTION Ver. 3.0
Service Parts No. 645 056 6288