Panasonic PT-VW350 / PT-VW350D / PT-VW350T / PT-VX420 / PT-VX420D / PT-VX420T / PT-VX421 Service Manual ▷ View online
DIS-3
SECTION 2 DISASSEMBLY PROCEDURES
2. Mechanical and Electrical Parts Disassembly
2.1. Disassembly flow chart
* Before Disassembly the projector, turn off the POWER switch and disconnect the power plug from the wall outlet.
* To assemble, reverse the disassembly procedures.
* When tore off sticky tapes, please use a new thing without reusing it on the occasion of assembling.
* To assemble, reverse the disassembly procedures.
* When tore off sticky tapes, please use a new thing without reusing it on the occasion of assembling.
Completed Product
Screws expression
(Type
Diameter x Length
) mm
T type
M Type
2.4.1. [A] and [J]-P.C.Board removal
2.8. Panel A/B intake fans and duct panel assy
removal
2.7. Power box and speaker box removal
2.6. [K]-P.C.Board, Lamp exhaust fan assy re-
moval
2.5. Power exhaust fan, lamp and lighting assy
removal
2.4. [A]/[J]-P.C.Board removal
2.3. Top cover and front cover removal
2.2. Air filter unit removal
Cable reforming
DIS-4
SECTION 2 DISASSEMBLY PROCEDURES
2.2. Air filter unit removal
1. Open the air filter cover, then remove it.
2. Hold the tab of the air filter unit and pull out whole air filter unit.
2. Hold the tab of the air filter unit and pull out whole air filter unit.
Tab
Air filter unit
Air filter cover
2.3. Top cover and front cover removal
Top cover
1. Loosen 1 screw-A to remove the lamp cover.
2. Remove 8 screws-B (T3x10) and 1 screw-C (M3x6) to remove the top cover.
3. Remove 4 screws-D (T3x10) to remove the front cover.
2. Remove 8 screws-B (T3x10) and 1 screw-C (M3x6) to remove the top cover.
3. Remove 4 screws-D (T3x10) to remove the front cover.
Lamp cover
A
D
D
D
D
B
B
B
B
C
B
B
B
B
R/C window
[R]-P.C.Board
Front cover
DIS-5
SECTION 2 DISASSEMBLY PROCEDURES
1. Remove 3 screw-A (T3x8) to remove [A]/[J]-P.C.Board assy.
A
A
A
[A]/[J]-P.C.Board assy
2.4. [A]/[J]-P.C.Board assy removal
1. Remove 3 screws-A (M3x6) and 4 hex-screws-B to remove the [A]-P.C.Board.
2. Remove 3 screws-C (T3x6),2 screws-D (M3x6) and 2 hex-screws-E to remove the
2. Remove 3 screws-C (T3x6),2 screws-D (M3x6) and 2 hex-screws-E to remove the
[J]-P.C.Board, then release the 4 hooks to remove the AV panel.
[A]-P.C.Board
E
B
B
AV panel
2.4.1. [A]/[J]-P.C.Board removal
A
C C
C
D
D
[J]-P.C.Board
AV shield
A
A
B
B
E
Hooks
DIS-6
SECTION 2 DISASSEMBLY PROCEDURES
2.5. Lamp intake fan, lamp, lighting assy removal
1. Loosen 3 screws-A to remove the lamp.
2. Remove 5 screws-B(T3x8) to remove the lighting assy.
3. Remove 3 screws-C (T2.5x8) to remove optical shield
2. Remove 5 screws-B(T3x8) to remove the lighting assy.
3. Remove 3 screws-C (T2.5x8) to remove optical shield
and Iris assy.
4. Remove 2 screws-D (T3x8) to remove the fan&duct assy.
Lighting assy
IRIS assy
Optical
shield
shield
Lamp assy
(LP900)
(LP900)
Fan&duct assy
D
D
C
C
C
B
B
B
B
B
A
A
A
When removing the iris assy, take the
iris with its blades closed. When turning
the gear on the iris in the arrow direc-
tion, the blades of iris will be closed. Do
not touch the blades because they are
precious parts.
iris with its blades closed. When turning
the gear on the iris in the arrow direc-
tion, the blades of iris will be closed. Do
not touch the blades because they are
precious parts.
MTG duct top
Guide air flap
Lamp
intake fan
intake fan
MTG duct bottom
Turn the wire from the fan at the
hooks on the filter board holder.
hooks on the filter board holder.
(T3x10)x2
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