Replacement Of Lcd Panel (B); Replacement Of Incidence Polarizer (G) - Panasonic PT-LB75EA Service Manual

PT-LB80NTU / PT-LB80NTE / PT-LB80NTEA / PT-LB80U / PT-LB80E / PT-LB80EA / PT-LB75NTU / PT-LB75NTE / PT-LB75NTEA / PT-LB75U / PT-LB75E / PT-LB75EA

7.13. Replacement of LCD Panel (B)

1. Remove the LCD block according to the section 7.12.
"Removal of LCD Block".
Note:
· Be careful not to touch the surface of prism and LCD
panel.
2. Cut the 4 LCD panel installation spindles at the position A
and remove the LCD panel.
3. Cut the 4 LCD panel installation spindles at the position B
and remove them.
Notes:
· Work carefully not to apply external force around the
spindle part by using a cutter, cutting nipper or the
like for cutting the spindle.
· Adjust the height after the spindle is cut to 1 mm or
less.
4. Attach the base plate with 4 screws.
5. Tighten the 2 screws temporarily just until new LCD panel
(with the panel attachment and panel adjuster) can be
shifted by your fingers.
Note:
· The panel adjustment fittings set (panel attachment,
panel adjuster and base plate) is an option for
service.
6. 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.
7. Adjust the convergence according to the section 8.3.
"Convergence Adjustment".
8. After the adjustment, while paying attention not to vary the
adjusting result, tighten the 2 screws fixing the panel
attachment with a hexagon head wrench.
Note:
· Prepare a hexagon head wrench processed short.
9. Reassemble the projector as it was.
7.14. Replacement of Incidence
Polarizer (G)
1. Remove the A-P.C.Board block according to the steps 1
through 5 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
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