Panasonic PTLB80NTU - LCD PROJECTOR, Service Manual

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4. Covering with an insulator (cloth or the like) to prevent a short circuit, set the A-P.C.Board block on the main unit.
Note:
·
Handle with care not to apply external force to connecting parts which connect the main unit and A-P.C.Board.
8.3.3. Adjustment Procedure
Prepare 2 pieces of thick black paper (23 mm × 100 mm) that can be shaded.
· Cover and shade LCD panels (R) and (G) with the paper.
1. Display the green crosshatch pattern and adjust the lens focus.
2. Display green and blue crosshatch patterns.
3. Adjust focus by shifting the panel adjuster for LCD panel (B) back and forth, then tighten the 2 screws.
4. Adjust the LCD panel (B) position so that the vertical center of blue crosshatch pattern is overlapped with the vertical center of
green crosshatch pattern.
5. Adjust the LCD panel (B) position so that the horizontal center of blue crosshatch pattern is overlapped with the horizontal
center of green crosshatch pattern.
6. Correct the tilt of the blue crosshatch pattern by adjusting the LCD panel (B) position.
7. Display green, red and blue crosshatch patterns and confirm the convergence. If it is necessary, fine adjust the convergence
so that the blue crosshatch pattern is overlapped with green one.
Repeat steps (1) to (3) until the green and blue crosshatch
patterns merge into a cyan pattern.
8. After the adjustment, reassemble the projector according to the steps 8 in the section 7.13. "Replacement of LCD Panel (B)".
8.4. Software for Adjustment
8.4.1. Outline
· This projector needs computer-aided adjustments.
· After the software adjustments, this projector must be turned off and on again to memorize the settings.
·
Connect the cable between the projector and a PC as shown below.
· Updating the software will change the version number.
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PT-LB80NTU / PT-LB80NTE / PT-LB80NTEA / PT-LB80U / PT-LB80E / PT-LB80EA / PT-LB75NTU / PT-LB75NTE / PT-LB75NTEA / PT-LB75U / PT-LB75E / PT-LB75EA
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