Panasonic PT-DZ770U / PT-DZ770E (serv.man8) Service Manual ▷ View online
DIS-4
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-5
4. <WL-P.C.B> Unscrew the 3 screws and remove the WL-P.C.Board.
<A-P.C.B> After WL-P.C.Board is removed, Unscrew the 10 screws and remove the A-P.C.Board.
<J-P.C.B> Unscrew the 8 screws and remove the J-P.C.Board.
2. 4. Removal of S-P.C.Board
1. Remove the Upper Case according to the section 2.2. "Removal of Upper Case".
2. Unscrew the 2 screws and remove the Control Buttons Block.
3. Unscrew the 3 screws and remove the S-P.C.Board.
2. 5. Removal of Color Wheel Block
1. Remove the Upper Case according to the section 2.2. "Removal of Upper Case".
2. Unscrew the 1 screw and remove the Color Wheel Cover.
A-P.C.Board
WL-P.C.Board
Terminal Metal Fittings
* The WL-P.C.Board is connected onto the A-P.C.Board with the connector.
Work carefully when removing it.
Work carefully when removing it.
A-P.C.Board
J-P.C.Board
Control Buttons Block
Control Buttons Block
S-P.C.Board
R2-P.C.Board
Color Wheel Cover
DIS-6
3. Unscrew the 2 screws and remove the Color Wheel Block.
2. 6. Removal of Power-supply unit
1. Remove the A-P.C.Board block according to the steps 1 through 3 in the section 2.3. "Removal of A-P.C.Board Block".
2. Unscrew the 2 screws and remove the Power Fan.
3. Unscrew the 7 screws and remove the Power-supply unit.
2. 7. Removal of B-P.C.Board
1. Remove the A-P.C.Board block according to the steps 1 through 3 in the section 2.3. "Removal of A-P.C.Board Block".
2. Loosen the 3 screws fixing the lamp unit until they idle and remove the lamp unit 1.
3. Unscrew the 1 screw and release the terminal for lamp unit 1.
4. Unscrew the 3 screws and remove the Ballast Block.
Color Wheel Block
Power Fan
P-P.C.Board
Terminal for Lamp Unit 1
Lamp Socket Holder
Ballast Block
* Open the Lamp Socket Holder and separate
the socket and the plug for the connection.
the socket and the plug for the connection.
DIS-7
5. Unscrew the 4 screws and remove the Ballast Mesh.
6. Unscrew the 2 screws and remove the Ballast Fan.
7. Unscrew the 4 screws and separate the Ballast Shield Case (Upper) and (Bottom) .
8. Unscrew the 4 screws and remove the B-P.C.Board.
2. 8. Removal of Analysis Block
1. Remove the A-P.C.Board block according to the steps 1 through 3 in the section 2.3. "Removal of A-P.C.Board Block".
2. Loosen the each of 3 screws until they idle and remove the lamp units 1 and 2.
3. Unscrew the 1 screw and release the terminal for lamp unit 1.
Ballast Mesh
Ballast Fan
Ballast Shield Case (Upper)
Ballast Shield Case (Bottom)
B-P.C.Board (Lamp2)
B-P.C.Board (Lamp1)
Terminal for Lamp Unit 1
Lamp Socket Holder
* Open the Lamp Socket Holder and separate
the socket and the plug for the connection.
the socket and the plug for the connection.
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