Panasonic PT-TW343RE (serv.man5) Service Manual ▷ View online
-25-
Mechanical Disassembly
Fig. 6
6. Filter board unit and power box disassembly
1. Remove 2 screws A (T3x8) and remove the
power box aluminum shielding.
2. Remove 8 screws B (T3x8) and remove the
power supply box components
.
3. Remove 4 screws C (T3x8) and remove the
Filter board
.
4. Remove 3 screws D (T3x8) and remove the
Front remote control bracket and Remote control panel assembly.
5. Remove 1 screw E (T3x8) and remove the
Rear remote control .
C C
C C
D
E
D
D
B
B
B
B
A
B
B
B
A
B
Filter board
Power shield sheet
Power box aluminum shielding
Insulation sheet of lamp starter
Lamp starter
Mainboard support of
lamp starter
Front remote control bracket
remote control (Rear)
Power board component
Bottom insulation sheet of
power supply
remote control (
(Front)
(Front)
-26-
Mechanical Disassembly
Foot rubber
Support axis
Adjustable stand shaft
Foot case
Foot spring
1. Remove the fuse from the fuse support.
2. Install the fuse as shown in the following figure.
1. Remove a foot rubber.
2. Remove a support axis by pushing it out.
3. Take out the adjustable stand shaft, foot
spring
and foot case of the adjustable foot.
Fig. 6-1
Fig. 7
6-1. Fuse disassembly
7. Disassembly adjustable foot assembly
Top view of fuse installation
-27-
Mechanical Disassembly
Fig. 8
8. Cable reforming
Reform cables as shown below. Place cables at their original places after units are replaced.
P5030 P3001
P3004
P8003
P3006
P1003
P1003
P5003
P3002
FN3003
FN3002
FN3001
FN3005
FN3004
-28-
GR
GL
L-
type Optical block
R-type Optical block
G-Optical block
Lighting block Disassembly
Before taking the procedure, remove cabinet top and main board following to the "Mechanical Disassembly".
Disassembly tools: 2.0mm hex wrench and screwdriver.
Optical block
Fig. 1
Fig. 1-1
Fig. 1-2
1. Optical block removal
* Note on handling the optical block
Optical block and polarized glasses are
very sensitive parts.
Use air blower to clear the dust on the
surface of the Optical block
(for more details about handling the inorganic
polarized glass, please refer to the next
page).
Important notice on Optical block replacement
Optical block used for this model cannot be replaced
separately. Do not disassemble the Optical block.
These Optical block are installed with precision at the
factory. When replacing the Optical block, should be
replaced whole of the Optical block are prism assy at
once.
When replacing Optical block, take the optical
and electrical adjustments following to the chapter
"Adjustment".
1. Remove 2 screw A (M3x8) and pull out the lens/Optical block.
2. Remove 4 screw B (M2.5x8), remove the Optical block.
There are 2 types of optical block, named R-type and L-type.
When replacing the optical block, check the printed marker on the flat cable of the G-LCD panel and
use the same type of the optical block. If not used the same type, you will find the color shading or
wrong white balance picture on the screen.
How to check Optical block model
Please check the print serial number on the G-Optical block 's cable.
GR --> R-Optical block
GL --> L-Optical block
Check Optical block model
Top view of LCD panel/prism assy
G-LCD panel
B-LCD panel
Polarized glass OUT(B)
Polarized glass OUT(G)
Polarized glass OUT(R)
R-LCD panel
B
B
B
B
A
A
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