Canon D78-5132, Service Manual

Page: 49 / 134

5. LCD PANEL/PRISM ASS’Y REPLACEMENT
5.1 LCD Panel/Prism Ass’y Removal
1. Remove the cabinet top, front 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.
Part 2: Repair Information
2-15
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 “Integrator Lens Adjustment” and “Relay Lens
Adjustment” following to chapter “Optical Adjustment”.
• Check the “White Balance Adjustment” and “Black Balance
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
attached with this manual.
COLOR SHADING CORRECTION (Ver. 2.0.2)
Fig. 2-23
WARNING
LCD Panel/Prism Ass’y
Note:
Do not replace the LCD
panel separately
otherwise it can not
obtain proper picture.