ViewSonic PJ452 - LCD XGA Projector-4.9LBS Service Manual page 43

6. How to exchange the DICHROIC OPTICS UNIT and the LENS ASS'Y.
How to remove the PANEL DUCT ASSY and the PJ LENS.
Please remove the PANEL DUCT ASSY before the LENS ASS'Y.
Please take care of two hooks on the PANEL DUCT ASSY.
Please remove three rivets and take the PANEL DUCT ASSY off.
ATTENTION
Don't break two hooks on the PANEL
DUCT ASSY.
Please remove four screws and four squere nuts, and take the LENS ASS'Y off.
DICHROIC OPTICS UNIT
Moreover, separate LCD/PRSM ASSY and DICHROIC OPTICS UNIT in accordance with the instruction on
the following page.
ViewSonic Corporation
CAUTION
40
DICHROIC OPTICS UNIT
LENS ASS'Y
Confidential - Do Not Copy
PJ452