Panasonic PT-AX200U / PT-AX200E Service Manual ▷ View online
4. Remove the PBS array (with PBS mask).
5. Remove the PBS mask from the PBS array.
6. Install the PBS mask onto a new PBS array.
7. Install the new PBS array (with PBS mask) in the analysis
case (lower).
Note:
·
Be
careful
not
to
mistake
the
direction
(inside/outside, upper/lower).
·
Be careful not to touch the surface of PBS array.
6.18. Removal of Iris Unit
1. Remove the block of Analysis Block, LCD Block and
Projection Lens Block according to the steps 1 through 7 in
the section 6.9. "Removal of Analysis Block".
the section 6.9. "Removal of Analysis Block".
2. Unscrew the 2 screws and remove the LCD block.
Note:
·
Be careful not to touch the surface of prism and LCD
panel.
panel.
3. Unscrew the 3 screws and remove the analysis case
(upper).
Note:
·
The incidence polarizer (R, G and B) are installed in
the analysis case (upper). Be careful not to shift the
installation position nor be damaged.
the analysis case (upper). Be careful not to shift the
installation position nor be damaged.
4. Unscrew the 1 screw and remove the integrator hold spring.
5. Unscrew the 2 screws and remove the iris unit .
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PT-AX200U / PT-AX200E
7 Measurement and Adjustments
7.1. Adjustment Procedure Flowchart
7.2. Cautions for Adjustment
·
Never turn off the MAIN POWER switch until every fan completely stops.
·
To maintain and ensure safety, always use the designated components for replacement parts.
·
If removing any clamps, lead wires or connectors, always place them back in their proper locations.
·
Be careful not to damage the lead wires or components when using a soldering iron or similar tool.
7.3. Setting Before Adjustment
·
Set up the projector to obtain the projection distance below.
·
Turn the zoom ring of the projector to obtain the largest size of the picture.
7.4. Convergence Adjustment
Execute this adjustment when replacing the LCD panel (B) .
7.4.1. Tools to be used
Service Kit : This kit is composed of 3 extension flexible cables and 4 connector extension cables.
Note:
·
Consult your dealer or Authorized Service Center for the service kit.
7.4.2. Preparation
1. Loosen 2 screws fixing the panel adjuster and 3 screws fixing the panel attachment, then tighten the 5 screws temporarily just
until the LCD panel can be shifted by your fingers.
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PT-AX200U / PT-AX200E
Note:
·
See figures in the section 6.12. "Replacement of LCD Panel (B)" for 2 screws fixing the panel adjuster and 3 screws
fixing the panel attachment.
fixing the panel attachment.
2. 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.
3. Connect the service kit (extension cables).
·
Each flexible cable of LCD Panels (R/G/B) - Connectors (A1/A2/A3) on A-P.C.Board
·
Thermosensor (Intake air) connector - Connector (A7) on A-P.C.Board
·
Intake fan connector - Connector (A15) on A-P.C.Board
·
Power fan connector - Connector (A16) on A-P.C.Board
·
Lamp fan connector - Connector (A18) on A-P.C.Board
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.
7.4.3. Adjustment Procedure
Prepare 2 pieces of thick black paper (23 mm × 100 mm) that can be shaded.
·
Cover and shade LCD panels with the paper except the panel that attempts to be adjusted.
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.
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PT-AX200U / PT-AX200E
Repeat steps (1) to (3) until the green and blue crosshatch
patterns merge into a cyan pattern.
patterns merge into a cyan pattern.
8. After the adjustment, reassemble the projector according to the steps 9 through 13 in the section 6.12. "Replacement of LCD
Panel (B)".
7.5. Lighting Area Adjustment
7.5.1. Tools to be used
Service Kit: This kit is composed of 3 extension flexible cables and 4 connector extension cables.
Note:
·
Consult your dealer or Authorized Service Center for the service kit.
7.5.2. Preparation
1. Remove the upper case and the connector cover according to the steps 1 through 2 in the section 6.3. "Removal of A-
P.C.Board".
2. Unscrew the 2 screws.
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PT-AX200U / PT-AX200E
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