Panasonic PT-DZ770U / PT-DZ770E (serv.man4) Service Manual ▷ View online
4. Unscrew the 4 screws and remove the Filter Base.
5. Unscrew the 2 screws and release the Reserve Tank.
6. Unscrew the 4 screws and release the DMD Block.
If there is twist and/or bending symptom on the pipe when
re-installation of the liquid cooling unit, it will be caused
TEMPERATURE ERROR and SHUT DOWN.
Should be check existing of twist and/or bending symptom
of the pipe after re-installation of the liquid cooling unit.
1) Turn on the projector and the lamp stays lit at least 15 minutes.
*LAMP SELECT : DUAL
*CONTRAST MODE : DEFAULT
*LAMP POWER : HIGH
*PROJECTION IMAGE : BLUE (No Signal)
2) Celect sub menu "STATUS" of the main menu "PROJECTOR SETUP".
3) Check difference in temperature of "INTAKE AIR TEMP" and "OPTICS MODULE TEMP".
Liquid Cooling Unit works normally if it satisfy the following relations.
[ OPTICS MODULE TEMP. ] － [ INTAKE AIR TEMP. ] ＜ ２０℃
Caution:
Filter Base
DMD Block
Reserve Tank
Radiator
DMD Block
* DMD block and the liquid cooling unit can not be separated.
DMD Block
Part of easy born of
twist and bending
twist and bending
Operation check of Liquid Cooling Unit
DIS-9
2.10. Removal of Mechanical shutter
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 Metal Partition (front).
3. Unscrew the 5 screws and remove the Lens Cover.
4. Unscrew the 2 screws and remove the Mechanical Shutter.
6. When changed a mechanical shutter, please initialize a shutter counter in the following procedure.
1) Setting to service mode.
2) Select sub menu "INITIALIZE" of the main menu "PROJECTOR SETUP", and input a security password.
3) Select "SHUTTER COUNTER" and click an "OK" button and initialize it.
Metal Partition (front)
Lens Cover
Mechanical Shutter
DIS-10
2.10. Removal of Mechanical shutter
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 Metal Partition (front).
3. Unscrew the 5 screws and remove the Lens Cover.
4. Unscrew the 2 screws and remove the Mechanical Shutter.
6. When changed a mechanical shutter, please initialize a shutter counter in the following procedure.
1) Setting to service mode.
2) Select sub menu "INITIALIZE" of the main menu "PROJECTOR SETUP", and input a security password.
3) Select "SHUTTER COUNTER" and click an "OK" button and initialize it.
Metal Partition (front)
Lens Cover
Mechanical Shutter
DIS-10
2.10. Removal of Mechanical shutter
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 Metal Partition (front).
3. Unscrew the 5 screws and remove the Lens Cover.
4. Unscrew the 2 screws and remove the Mechanical Shutter.
6. When changed a mechanical shutter, please initialize a shutter counter in the following procedure.
1) Setting to service mode.
2) Select sub menu "INITIALIZE" of the main menu "PROJECTOR SETUP", and input a security password.
3) Select "SHUTTER COUNTER" and click an "OK" button and initialize it.
Metal Partition (front)
Lens Cover
Mechanical Shutter
DIS-10
