ViewSonic PJ1158-1, Service Manual

Page: 24 / 106

6-2 Before Replacing The LCD/Lens Prism
You should not replace separately the parts of the liquid crystal LCD/Lens prism because it works properly
only when used together. Therefore, regarding these parts, you can either replace part, LCD/Lens prism
assembly, or send the whole unit LCD/Lens prism assembly back to SUPPLIER, where we will replace the
malfunctioning part, recondition the device and send it back to you.
DISTRIBUTOR SUPPLIER
G Panel
Do not disassemble the unit
because replacement of separate
parts is not possible.
Return
Replacement of G Panel Reconditioning
1. Preparation
Please prepare cleaning tools and materials as follows. And prepare relatively clean room not to work in
additional dust, while removing operation.
(1) Swab for cleaning : P#: NX05742, "Cotton stick L70"
(2) Air duster (Dust blower, spray can)
(3) Vacuum cleaner
2. Disassemble and setting up.
(1) Turn off the projector, and unplug the power cord.
(2) Remove the lamp cover and upper case, according to the disassembling diagram of chapter 8.
(3) Unscrew the shield bracket of PWB assembly MAIN to make it free.
6-3 Cleaning up dust from panels and optical filters
WARNING
Wear sunglasses to protect your eyes when you maintain the projector with its lamp on.
CAUTION
Make sure to remove the shield
bracket before removing the PWB
assembly MAIN.
Otherwise,
fl exible cables will be
damaged.
Remove these screws
ViewSonic Corporation
Co
nfidential - Do Not Copy PJ1158-1
21