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4. Remove the security ring from the front of the cardcage by pressing down on the latch located on the side
of the cardcage. (Figure 5-32 Remove Security Ring)
5. Push in the red tabs on the top and bottom PIB3G ejector tabs. Then, push in the top and bottom black tabs
to release the PIB3G Board from the Backplane.
6. Pull the PIB3G assembly out of the cardcage. (Figure 5-37)
7. When installing, repeat the above instructions in reverse. Verify the software version installed. For details,
refer to the D4K35 User Manual (P/N: 020-100773-xx).
5.9.5 Light Engine Quick Disconnect (LEQD)
The LEQD is part of the light engine assembly. It is attached to the
outside of the cardcage an connects to the Backplane. The LVDS and
power are routed to the light engine from the LEQD.
(Estimated Replacement Time: 8 minutes)
1. Remove the front top lid. Refer to
2. Remove the high security lid. Refer to
3. Loosen the thumbscrew securing the LEQD in place. (Figure 5-38)
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 LEQD out to remove.
6. Disconnect the three LVDS/power harnesses.
5.9.6 Environmental Board (EVB)
The EVB is mounted to the wall inside the light engine assembly
compartment. The fans, pump, temperature sensors and motor control
harnesses plug into the EVB.
(Estimated Replacement Time: 15 minutes)
1. Remove the front top lid. Refer to
Front Top Lid.
2. Remove the high security lid. Refer to
5.4.3 High Security Lid.
3. Loosen the single thumbscrew securing
the EVB in place. (Figure 5-39)
4. Disconnect the 10 harnesses from the
EVB.
5. Remove the EVB.
6. When re-installing the EVB, repeat the
above instructions in reverse. Refer to
Section 6 Interconnections
reconnecting the harnesses.
D4K35 Service Manual
020-100817-01 Rev. 1 (04-2012)
5.4.2 Front Top Lid.
5.4.3 High Security Lid.
5.4.2
when
Section 5: Parts and Module Replacement
Figure 5-38 Remove LEQD
Figure 5-39 Remove EVB
5-25
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