Lcd Panel/Prism Ass'y Replacement - Sanyo PLV-80 Service Manual

LCD Panel/Prism Ass'y Replacement

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 adjustments.
- Check the "Condenser Lens Adjustment" and "Relay Lens Adjustment" following to chapter "Optical
Adjustment".
- Check the "White Balance Adjustment" and "Common Centre Adjustment" following to chapter "Electrical
Adjustment".
- Check the white uniformity on the screen.
If you find the color shading, please adjust the white uniformity by using the proper computer and "Color
Shading Correction" software supplied separately. The software can be ordered as follows;
LCD Panel/Prism Ass'y removal
1
Remove the cabinet top and main board following to
"Mechanical Disassemblies".
2
Remove 4 screws by using the 2.0 mm hex driver and
take the LCD Panel/Prism ass'y off upward from the opti-
cal unit.
Note on LCD Panel/Prism Ass'y Mounting
After replacing or installing the LCD Panel/Prism ass'y,
please make sure to obtain the best focus in both TELE
and WIDE zoom. If the focus adjustment is required,
please adjust the positioning of LCD Panel/Prism Ass'y by
following the below procedure.
Mounting Procedure:
1
Loosen 4 screws A on the LCD Panel/Prism ass'y with
2.0 mm hex driver.
2
Turn the projector on and project the image with WIDE
zoom, and adjust the FOCUS control to obtain the best
focus.
3
Turn the ZOOM control to the TELE position.
4
Move the LCD Panel/Prism Ass'y backward or for-
ward (about 0mm ~ 0.8mm) to obtain the proper focus.
Confirm the focus at TELE and WIDE zoom.
5
Tighten 4 screws A to fix the LCD Panel/Prism ass'y.
COLOR SHADING CORRECTION Ver. 4.00
Service Parts No. 645 075 9611
-18-
Note:
Do not replace the LCD
panel separately otherwise
it can not obtain proper
picture.
LCD Panel/Prism
Ass'y
Top View
A
A
LCD Panel/Prism Ass'y
A
A