Hitachi CP-DX250 Service Manual page 44

7.1.3 DMD and Chip B/D Module: DMD and Chip B/D Module:
7.1.3.1 Judge Chip B/D and DMD alignment keying first (Fig. Judge Chip B/D and DMD alignment keying first (Fig. 7-11, 7-12
7.1.3.2 Alight keying and Assemble DMD to Chip B/D (Fig. Alight keying and Assemble DMD to Chip B/D (Fig. 7-13).
7.1.3.3 Push DMD slightly and use screwdriver rotate clockwise Push DMD slightly and use screwdriver rotate clockwise Switch
notation) DMD on Chip B/D (Fig. notation) DMD on Chip B/D (Fig. 7-14).
7.1.4 Assembly Optical Engine:
7.1.4.1 Assemble Chip B/D Module to "DMD Assemble Chip B/D Module to "DMD HSG" (Fig. 7-15).
Fixed shafts of
DMD HSG
Fig.7-15-1
7.1.4.2 Assemble Heat-sink to
i. Press center of Heat-
spring screw assembly finish. spring screw assembly finish.
ii. Pre-fastening Sequence: fastening Sequence: [ 1 ] - [ 2 ] - [ 3 ] - [ 4 ].
iii. Fastening Sequence: [ 2 ]
Alignment keying
Fig. 7-11
Fig. 7-1 13
ptical Engine:
to contact DMD (Fig. 7-16-1,7-16-2).
-sink before assemble spring screw, then keeps press until
: [ 2 ] - [ 1 ] - [ 4 ] - [ 3 ].
Fig. 7-12
Open
Switch
Fig. 7-14
Fixed holes of DMD s of DMD
Fig.7-15
43
12).
Switch to lock (close
Lock Lock
15-2
then keeps press until