Replacement Of Incidence Polarizer (G); Replacement Of Projection Polarizer - Panasonic PT-LB20NTU Service Manual

PT-LB20NTU / PT-LB20NTE / PT-LB20NTEA / PT-LB20U / PT-LB20E / PT-LB20EA / PT-LB20SU / PT-LB20SE / PT-LB20SEA / PT-LB20VU / PT-LB20VE / PT-LB20VEA
Note:
· Because the hook is damaged easily, be careful not
to expand it excessively.
· The incidence polarizer (G) is installed in the
analysis case (upper). Handle with care not to apply
external force to the incidence polarizer (G).
4. Replace the incidence polarizer.
Note:
· Be careful not to touch the surface of incidence
polarizer.
7.17. Replacement of Incidence
Polarizer (G)
1. Remove the A-P.C.Board block according to the steps 1
through 6 in the section 7.3. "Removal of A-P.C.Board".
2. Mark positions of the incidence polarizer (G).
Note:
· Mark accurately as possible because the marks will
be used for resetting the incidence polarizer
position.
3. Unscrew the 1 screw and remove the incidence polarizer
(G).
4. Attach a new incidence polarizer (G) and align it with the
mark.
5. Tighten the 1 screw with care not to move the incidence
polarizer position.
7.18. Replacement of Projection
Polarizer
· The procedure is described as an example of projection
polarizer (B).
1. Remove the LCD block according to the section 7.12.
"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.
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