Hitachi C11XMB Service Manual page 18

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 HITACHI, where we will replace the
malfunctioning part, recondition the device and send it back to you.
DISTRIBUTOR
6-3 Cleaning up dust from panels and optical filters
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#: NX08061, "Cotton stick L147"
(2) Air duster (Dust blower, spray can)
(3) Vacuum cleaner
2. Disassemble and open the maintenance hole.
(1) Turn off the projector, and unplug the power cord.
(2) Remove the top cover, according to the disassembling diagram of chapter 8.
(3) Remove the PWB assembly MAIN, according to the Notice-5 of the Chapter 8.
(4) Remove the Panel Cover.
PWB assembly MAIN
(5) Re-assemble the PWB assembly MAIN, and re-connect toward projection lens.
Then place the board vertically shown above so that LCD panels can be seen.
Note that connectors for LCD panels should be empty.
CP-X444(C11XMB)/CP-X440(C11XM25)
Do not disassemble the unit
because replacement of separate
parts is not possible.
Return
18
G Panel
HITACHI
Replacement of G Panel Reconditioning
Panel Cover
Frexble cables of LCD panel