Panasonic PT-VW360 / PT-VX430 / PT-VX431K (serv.man3) Service Manual ▷ View online
INF-31
SECTION 1 SERVICE INFORMATION
<VW360/VX430/VX431K>
■ Remote control does not respond
R Check the cable connection between [A]-P.C.Board and connec-
tor [K29D]
NG
R Connect the cables properly
Check the voltage from Low to Hi at pin 1 of A5 when the remote
control button is pressed.
NG
Replace [R]-P.C.Board
A Replace [A]-P.C.Board
A Replace [A]-P.C.Board
OK
OK
OK
■ Controls on top cover do not respond
Check the lamp cover whether is install
NG
Install the lamp cover correctly
Check the connection of each key button
NG
Check the connection of each key button
Check the resistance connection of each key button
NG
Solder the resistance correctly
OK
OK
■ Built-in speaker check
J
Check the waveform at pins 1 and 3 of connector [K8F]
NG
J
Check IC001 and peripheral circuits
Replace speaker
J
Replace [J]-P.C.Board
OK
OK
INF-32
SECTION 1 SERVICE INFORMATION
<VW360/VX430/VX431K>
■ No sound
A/J
[ANALOG]
Check the connections [K30B] (PC AUDIO IN1), [K30A](PC
AUDIO IN2 ), [K50A](AUDIO IN)
[DIGITAL]
Check the connection [JK1005/JK1006] (HDMI)
NG
Check the cable connection securely
J
[ANALOG]
Check the waveform at pins of connectors [K30B] (PC AUDIO
IN1), [K30A](PC AUDIO IN2), [K50A](AUDIO IN)
NG
J
Replace the [J]-P.C.Board
[DIGITAL]
Check the cable connection between connector [A9] and [J11]
NG
Replace the cable
J
[Common]
Check the waveform at pins (4), (11) (12) and (13) of IC4004.
NG
J
Check IC4004 and peripheral circuits
J
[Common]
Check the waveform at pin 2, 13 of IC7002.
NG
J
Check IC7002 and peripheral circuits
J
Replace [J]-P.C.Board
OK
OK
OK
OK
OK
OK
Check each cable connection
No sound with built-in speaker
Follow the section "Built-in speaker check"
No sound with external speakers
Follow the section "AUDIO OUT check"
No sound with built-in and external speakers
■ AUDIO OUT check
[ANALOG]
Check the cable connection between [A]-P.C.Board and con-
nector [J11]
NG
Replace cable
J
Replace [J]-P.C.Board
A Replace [A]-P.C.Board
OK
OK
DIS-1
SECTION
2
CONTENTS
1. Parts Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIS-2
1.1. Electrical parts location (P.C.Boards)
1.2. Electrical parts location (Fans)
1.2. Electrical parts location (Fans)
2. Mechanical and Electrical Parts Disassembly . . . . . . . . . . . . . . . . . .DIS-3
r
Disassembly flow chart
2.1. Air filter cover, Air filter unit removal
2.2. Top cover removal
2.3. Front cover removal
2.4. A&J-PCB assy removal
2.5. Lamp unit and lighting assy removal
2.6. Lamp intake fan assy, lamp exhaust fan assy removal
2.7. K-PCB assy and speaker assy removal
2.8. Power box assy removal
2.9. Panel A/B intake fan, panel duct assy removal
2.2. Top cover removal
2.3. Front cover removal
2.4. A&J-PCB assy removal
2.5. Lamp unit and lighting assy removal
2.6. Lamp intake fan assy, lamp exhaust fan assy removal
2.7. K-PCB assy and speaker assy removal
2.8. Power box assy removal
2.9. Panel A/B intake fan, panel duct assy removal
3. Optical Parts Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DIS-12
r
Disassembly flow chart
3.1. Projection lens and optical block assy removal
3.2. Polarizer-out replacement
3.3. Iris unit removal
3.4. Polarizer-in assy removal
3.5. Condenser lens-out removal
3.6. PBS and integrator lenses removal
3.7. Lighting case cover removal
3.8. Parts location and direction in the lighting case
3.2. Polarizer-out replacement
3.3. Iris unit removal
3.4. Polarizer-in assy removal
3.5. Condenser lens-out removal
3.6. PBS and integrator lenses removal
3.7. Lighting case cover removal
3.8. Parts location and direction in the lighting case
<Cable reforming> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIS-20
(2018-05)
SECTION 2 DISASSEMBLY PROCEDURES
Illustrations of the projector and other parts may vary from the actual product.
DIS-2
SECTION 2 DISASSEMBLY PROCEDURE
<VW360/VX430/VX431K>
1. Parts Locations
1.1. Electrical parts location (P.C.Boards)
1.2. Electrical parts location (Fans)
J
M2
M1
K
A
C
R
B
P
Lamp intake fan
Power exhaust fan
Lamp exhaust fan
Panel A intake fan
Panel B intake fan
Board name Function summary
Board name Function summary
A
Image processingsystem / CPU
P
Power supply
J
Signal input terminals
B
Ballast power / Ballast control
K
Line Filter
M1
Temperature sensor (Intake air)
M2
Air flow sensor
R
Remote control receiver
C
Lamp memory connection
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