Sanyo PLC-SU32, Service Manual

Page: 19 / 147

-19-
■
LCD Panel/Prism Ass’y Replacement
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
optical unit.
LCD Panel/Prism
Ass’y
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 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 forward
(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.
Top View
A
A
A A
LCD Panel/Prism Ass’y
Note:
Do not replace the LCD
panel separately otherwise
it can not obtain proper pic-
ture.
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” , “Condenser Lens-Out Adjustment” and “Relay Lens-Out
Adjustment” following to chapter “Optical Adjustment”.
- Check the “White Balance Adjustment” , “Common Center Adjustment” and “Gamma Shift 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;
COLOR SHADING CORRECTION
Service Parts No. 645 051 2308
LCD Panel/Prism Ass’y removal
Note on LCD Panel/Prism Ass’y Mounting