PT-DZ770U, PT-DZ770E (serv.man3) - Panasonic Projector Service Manual (repair manual). Page 11

5. Select Microprocessor to update, and click [load] button.

6. Appoint the microcomputer software that took in a computer beforehand, and click [Open] button.

    Confirm that it is OK and click [ Update ].

8. Click [ OK ] button, and start update.

7. When load of the microcomputer software is completed, a checkmark and path and a version are displayed.
　     * When do not do update in Microprocessor Software which did load, exclude a checkmark of Microprocessor
          to fall under.

ADJ - 11