Panasonic PT-DZ770U / PT-DZ770E (serv.man4) Service Manual ▷ View online
1. Parts Location ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ DIS-2
2. Disassembly Instructions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ DIS-3
2. 1. Flowchart for Disassembly
2. 2. Removal of Upper Case
2. 3. Removal of A-P.C.Board Block (A/J/WL-P.C.Board)
2. 4. Removal of S-P.C.Board
2. 5. Removal of Color Wheel Block
2. 6. Removal of Power-supply unit
2. 7. Removal of B-P.C.Board
2. 8. Removal of Analysis Block
2. 9. Removal of DMD Block
2.10.Removal of Mechanical shutter
CONTENTS
SECTION 2
< Disassembly Procedures >
Model No.
PT-DZ770U / DZ770E /
DZ770UL / DZ770EL
1. Parts Location
1. 1. Electrical Parts Location (P.C.Board)
Image processing system / microcomputer
CW sensor
Input terminal I/F
Filter detection SW
Network (LAN)
Relay Board
Control Panel
Rear cover connection / Interlock
DMD drive
Temp sensor (Intake/Exhaust)
Ballast power / Ballast control
Temp sensor (Air flow)
AC Inlet / Power supply (DC-DC)
Lamp memory connection
1. 2. Electrical Parts Location (Fan)
J
WL
S
P
FM
B/Q
Board Name
Board Name
Function summary
A
CW
L1/L2
F
M2
Function summary
M1
RL
R2/R3
Power Fan
CW Fan
Ballast Fan
Lamp-R Fan
P
L1
S
L
M1(Intake)
F
FM
J
A
RL
M2
M1(Exhaust)
B/Q
R3
R2
WL
Radiator Fan
Exhaust-L Fan
Exhaust-R Fan
CW
Lamp-L Fan
DIS-2
2. Disassembly Instructions
2. 1. Flowchart for Disassembly
* 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.
Removal of Mechanical
shutter
shutter
2. 9.
2. 7.
Removal of B-P.C.Board
2. 8.
Removal of Analysis Block
Removal of DMD Block
Removal of S-P.C.Board
2. 5.
2. 3.
Completed Product
2. 2.
Removal of Upper Case
Removal of A-P.C.B Block
(A/J/WL-P.C.Board)
(A/J/WL-P.C.Board)
Removal of Color Wheel
Block
Block
2. 6.
Removal of Power-supply
unit
unit
2. 4.
2.10.
DIS-3
2. 2. Removal of Upper Case
1. Remove the Lens Ring and Projection Lens.
2. Loosen the 1 screw until it idles, then remove the Rear Cover.
3. Unscrew the 5 screws and remove the Upper Case.
2. 3. Removal of A-P.C.Board Block (A/J/WL-P.C.Board)
1. Remove the Upper Case according to the section 2.2. "Removal of Upper Case".
2. Unscrew the 3 screws and remove the Terminal Cover.
3. Unscrew the 6 screws and remove the A-P.C.Board block.
Upper Case
Lens Ring
lens release button
Projection Lens
Rear Cover
①
②
③
Terminal Cover
A-P.C.B
WL-P.C.B
DIS-4