Screen Frame Removal; Screen Assembly; Main Chassis Block; Chassis Assembly - Panasonic PT-47WX52F Service Manual

Disassembly for service (continued)

Screen frame removal

1. Remove the speaker grille. Disconnect the cables
leading to the keyboard and the AV panels and
remove the keyboard and AV panel assembly. The
assembly is secured by three (3) screws.
2. At this point the front cover is held only by four
screws, be careful not to push the cabinet forward.
3. Remove screws and tilt the assembly forward while
lifting it out of place.

Screen assembly

(figure 14)
1. Remove the screen frame. See screen frame
removal procedure above.
2. Place screen frame face down on a soft surface.
3. Remove all screen brackets and corner brackets
Note: The brackets are painted black (permanent
marker) on the edge to prevent reflection on
image.
0 ± 0.5mm
Screws (18 places)
Fresnel screen
Figure 14. Screen assembly
4. Note exact orientation and order of each screen.
The orientation and order of the screens is critical
for displaying pictures properly. Detailed screen
assembly can be seen in figure 14.

Main chassis block

(figure 15)
1. Remove the speaker grille. See figure 11.
2. Remove the cabinet back lower cover. See
figure 12.
3. The main chassis block is secured to the cabinet
by screws at front, behind the Speaker Grill and
inside on the bottom of the optical frame).
4. Remove the horizontal barrier panel at the back of
the cabinet.
5. Unplug connectors
connectors) and pull out the main chassis block.
Bracket
Fresnel
screen
Double
Felt
adhesive tape
Protective screen
Lenticular screen
(K1, G1 and speaker
Figure 15. Chassis removal
Note: Main chassis block can be serviced either
in normal position or laying on its back
(protect hookup terminal from damage).

Chassis assembly

The chassis assembly shown in figure 18 includes all
the electrical and optical (light box) components.
Figure 16. Chassis rear view
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Main Chassis Block
Service Manual