Panasonic PT-LB60NTU / PT-LB60NTE / PT-LB60NTEA / PT-LB60U / PT-LB60EA / PT-LB55NTE / PT-LB55NTEA / PT-LB55EA Service Manual ▷ View online
7.16. 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.
(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.
on the FPC.
7.17. 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.
the same part number as the original.
Model number
LCD
panel
Part No.
PT-LB60NTU/E/EA
PT-LB60U/EA
PT-LB60U/EA
R
L5BDAXQ00224
(L3P08X-45G10)
G
L5BDAXQ00225
(L3P08X-45G10)
B
L5BDAXQ00226
(L3P08X-45G10)
PT-LB55NTE/EA
PT-LB55EA
PT-LB55EA
R
L5BDAYY00014
(L3P07X-55G11)
G
L5BDAYY00015
(L3P07X-55G11)
B
L5BDAYY00016
(L3P07X-55G11)
7.18. Replacement of Incidence
Polarizer (R and B)
1. Remove the LCD block according to the section 7.14.
"Removal of LCD Block".
2. Unscrew the 2 screws.
3. Remove the analysis case (upper) while expanding the
hook of it outside.
Note:
·
Because the hook is damaged easily, be careful not
to expand it excessively.
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).
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.
polarizer.
7.19. 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
be
used
for
resetting
the
incidence
polarizer
position.
3. Unscrew the 1 screw and remove the incidence polarizer
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PT-LB60NTU / PT-LB60NTE / PT-LB60NTEA / PT-LB60U / PT-LB60EA / PT-LB55NTE / PT-LB55NTEA / PT-LB55EA
(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.
7.20. Replacement of Projection
Polarizer
·
The procedure is described as an example of projection
polarizer (B).
polarizer (B).
1. Remove the LCD block according to the section 7.14.
"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.).
(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.
(lower, side) of LCD block.
·
Be careful not to touch the surface of projection
polarizer.
polarizer.
·
Use tweezers.
c.
Press the adhesive part and secure the projection
polarizer.
polarizer.
7.21. Replacement of PBS Array
(Analysis Block)
1. Remove the analysis case (upper) according to the steps 1
through 3 in the section 7.18. "Replacement of Incidence
Polarizer (R and B)".
Polarizer (R and B)".
2. Remove the PBS array.
3. Install new PBS array.
Note:
·
Be careful not to mistake the direction (inside and
outside, upper and lower).
outside, upper and lower).
·
Be careful not to touch the surface of PBS array.
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PT-LB60NTU / PT-LB60NTE / PT-LB60NTEA / PT-LB60U / PT-LB60EA / PT-LB55NTE / PT-LB55NTEA / PT-LB55EA
23
PT-LB60NTU / PT-LB60NTE / PT-LB60NTEA / PT-LB60U / PT-LB60EA / PT-LB55NTE / PT-LB55NTEA / PT-LB55EA
8 Measurement and Adjustments
8.1. Adjustment Procedure Flowchart
8.2. Cautions for Adjustment
·
Never unplug the power cord until the power indicator on the projector illuminates red.
·
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.
8.3. 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.
8.4. Convergence Adjustment
Execute this adjustment when replacing the LCD panel (B) .
8.4.1. Tools to be used
Service Kit : This kit is composed of 3 extension flexible cables and 1 connector extension cable.
Note:
·
Consult your dealer or Authorized Service Center for the service kit.
8.4.2. Preparation
1. Loosen 2 screws fixing the panel adjuster and 2 screws fixing the panel attachment, then tighten the 4 screws temporarily just
until the LCD panel can be shifted by your fingers.
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