Christie D4K25, Service Manual

Page: 74 / 138

5-22 D4K25 Service Manual
020-100880-01 Rev. 1 (06-2012)
Section 5: Parts and Module Replacement
5.9.5 Light Engine Quick Disconnect (LEQD2)
(Estimated Replacement Time: 20 minutes)
The LEQD2 is part of the light engine assembly. It is
connected to the side of the backplane where it receives
LVDS signals and power from the light engine.
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. Loosen the thumbscrew securing the LEQD2 in
place ( Figure 5-29 ).
4. Release the two black ejector tabs from the side of
the board, which will pull the board out from the
connectors.
5. Pull the LEQD2 out to remove.
6. Disconnect the three LVDS/power harnesses.
5.9.6 Environmental Board (EVB)
(Estimated Replacement Time: 40 minutes)
The EVB is mounted to the wall inside the light engine assembly compartment. The fans, pump, temperature
sensors, and motor control connections are all plugged into the EVB.
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. Loosen the single thumbscrew
securing the EVB in place ( Figure 5-
30 ).
4. Disconnect all the harnesses from the
EVB.
5. Remove the EVB.
6. When re-installing the EVB, repeat
instructions in reverse and see the
Interconnect Drawing provided when
connecting harnesses.
Figure 5-29 Remove LEQD2
Figure 5-30 Remove EVB