Replacing The Housekeeping Board (Hkbc); Replacing The Image Processing Board (Wip) - Christie Crimson Series Service Manual

7. To re-install, repeat these steps in reverse order.

Replacing the housekeeping board (HKBC)

The housekeeping (HKBC) board acts as an interface board with the majority of the control devices
feeding into it, including most of the fans, convenience light board, IR receivers, and so on.
1. Remove the top cover (on page 42).
2. Disconnect the 17 harnesses on the housekeeping board.
The 17 harnesses to remove: J7, J83, J84, J85, J88, J90, J101, J103, J104, J113, J115, J116,
J117, J118, J130, J132, J131, J135.
3. Remove the eight screws securing the HKBC board.
4. Pull back the harnesses and pull out the board.
5. Replace the board, if required.
6. To re-install, repeat these steps in reverse order.

Replacing the image processing board (WIP)

The image processing board (WIP) board provides the signal processing of the inputs going into the
projector.
1. Remove the IMXB board (on page 87).
2. Remove the two screws securing the WIP board and remove it.
Crimson Service Guide–Crimson HD25, Crimson WU25, Crimson HD31, Crimson WU31, Mirage HD25, Mirage WU25
020-102733-02 Rev. 1 (01-2020)
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Printed circuit boards and sensors
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