Read Panasonic PT-DZ770U / PT-DZ770E (serv.man4) Service Manual online
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
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