Christie D4K25, Service Manual

Page: 75 / 138

Section 5: Parts and Module Replacement
D4K25 Service Manual 5-23
020-100880-01 Rev. 1 (06-2012)
5.10 Light Engine
(Estimated Replacement Time: 30 m 60 minute calibration)
1. Remove the front top lid. See 5.4.2 Front Top Lid, on page 5-5.
2. Remove the high security lid. See 5.4.3 High Security Lid, on page 5-6.
3. Remove the projection lens.
4. Remove the PIB3G/ICP cover.
5. Disconnect the two coolant hoses from the quick disconnects.
Then loosen the thumbscrew located on the bracket next to the
disconnects (
Figure 5-31 ).
6. Disconnect the temperature and LAD fan connections from the
EVB (P39, P40).
7. Remove the LEQD2 board. See 5.9.5 Light Engine Quick
Disconnect (LEQD2), on page 5-22 .
8. Secure the LEQD2 to the light engine handle by tightening the
thumbscrew and the two clips.
9. Loosen the thumbscrew securing the cooling duct, and
carefully remove the cooling duct.
10. Remove the light engine air filter cover to access the service door in the fan pack assembly. The service
door provides an easy way of accessing the bottom captive screw on the light engine using the hex driver
tool provided with the projector. (
Figure 5-11 Light Engine Air Filter Cover, on page 5-10 )
11. Remove the light dump - single
thumbscrew.
12. Using the hex tool provided, loosen
the three screws securing the light
engine in place.
13. Using the built-in light engine handle,
carefully lift the light engine assembly
out of the projector (
Figure 5-1 ).
14. When installing, repeat above
instructions in reverse. Reshoot
MCGD files, align the aperture and
adjust convergence.
Figure 5-31 Liquid Cooling Quick
Disconnects