PT-DZ780, PT-DW750, PT-DX820, PT-DZ780BE, PT-DZ780LBE, PT-DZ780LWE, PT-DZ780WE, PT-DW750BE, PT-DX820BE, PT-DX820LBE (serv.man2) - Panasonic Projector Service Manual (repair manual). Page 24

SECTION 1  SERVICE  INFORMATION

< DZ780/DW750/DX820 >

・

To revert to the factory default password (AAAA), perform the following operations while the screen asking for a control

  device password input is displayed.

1) Press the <AUTO SETUP> button on the remote control for at least two seconds.
2) Press s for at least two seconds.

・

Initial password: Press awsqawsq in order, and press the <ENTER> button.

・

The basic service policy is shown below.

- P-P.C.Board (Specified components are replaced)

- BQ-P.C.Board

- K-P.C.Board (Specified components are replaced)

- ＦM-P.C.Board

- DMD block (Specified components are replaced)

- Mechanical shutter

- Lighting block (Specified components are replaced)

- Rod

1. Since this projector is very strong light output, when checking the projection screen, please UV protection glasses
    and select to "single" lamp mode.  If the projection distance is short, please pay particular attention.
2. When removing a top cover and carrying out check or adjustment, a strong light has leakage from the optical block.
    Please take the use of UV protection glasses and means of the shading.
3. Before repair, make sure to turn off the main power and disconnect the power plug from the power outlet.

* When replacing the print board, the internal electrical parts can be broken by the static electricity of clothes or human

body. Please take care in static electricity, use an antistatic wrist strap or wear the anti-static electricity gloves.

4. After repair, please check the gradation (10step or the gray scale) test pattern and moving image.
    Also, please check that it is normal on a self check screen.

・

The interlock detects whether the lamp cover is mounted securely.

  Power will not turn on, unless the connector R31 in a lamp cover is inserted in the main body side. 

  Block replacement

  P.C.Board replacement

 Replaced by discrete

 components

        Other electrical parts and mechanism parts

Repair contents

Applied parts

Lamp cover

R3-P.C.Board

(R31)

INF - 15