Panasonic PTAX200U - LCD PROJECTOR, Service Manual

Page: 19 / 75

7. Reassemble the projector in the reverse order of
disassembling, but leave the upper case and the screws
fixing the A-P.C.Board block as they are removed.
8. Adjust the convergence according to the section 7.4.
"Convergence Adjustment".
9. After the adjustment, while paying attention not to vary the
adjusting result, tighten the 2 screws (upper) fixing the
panel attachment temporarily with a hexagon head wrench.
Notes:
· Prepare a hexagon head wrench processed short.
10. Remove the LCD block again.
11. Tighten the 3 screws fixing the panel attachment.
12. Adhere the shading sheet as it was.
13. Reassemble the projector as it was.
6.13. LCD Panel Discrimination
ID-tag seal color LCD panel
Red LCD panel (R)
Blue LCD panel (B)
(No seal) LCD panel (G)
· Since the ID-tag seal is pasted to the FPC of LCD Panel,
(R), (G) or (B) can be easily identified by the color of the
seal.
· Finally, identify the panel color by the part number printed
on the FPC.
6.14. LCD Panel Combination
· Part number is printed on the FPC of LCD Panel.
· When replacing LCD Panel, use a component which has
the same part number as the original.
LCD
panel
Combination1 Combination2
R L5BDAYY00020
(L3D07H-65G20)
L5BDAYY00023
(L3D07H-66G20)
G L5BDAYY00024
(L3D07H-66G20)
L5BDAYY00021
(L3D07H-65G20)
B L5BDAYY00022
(L3D07H-65G20)
L5BDAYY00025
(L3D07H-66G20)
6.15. Replacement of Projection
Polarizer
· The procedure is described as an example of projection
polarizer (B).
1. Remove the LCD block according to the section 6.10.
"Removal of LCD Block".
2. Remove the projection polarizer which requires replacing.
(The projection polarizer is secured with adhesive tape.)
Notes:
· Be careful not to damage peripheral components
(prism, LCD panel, etc.).
·
Use tweezers.
3. Install new projection polarizer.
a. Put adhesive tape on the projection polarizer.
b. Stick the projection polarizer on the specified position.
Notes:
· Align the projection polarizer with the guides
(lower, side) of LCD block.
· Be careful not to touch the surface of projection
polarizer.
· Use tweezers.
c. Press the adhesive part and secure the projection
polarizer.
19
PT-AX200U / PT-AX200E