Printed Circuit Boards And Sensors; Replacing The Imxb Board; Replacing The Housekeeping Board (Hkbb) - Christie 4K40-RGB Series Service Manual

Printed circuit boards
and sensors
Printed circuit boards (PCB) mechanically support and electrically connect the projector components.
Sensors convert information such as temperature, light, and communication into electrical signals.
Always wear an electrostatic discharge (ESD) strap and use insulated tools when replacing circuit
boards.

Replacing the IMXB board

The IMXB module acts as the communication interface between the projector and the control systems.
1. Loosen the two captive screws and pull out the IMXB board.
2. Replace the IMXB board, if required.
3. To re-install, repeat these steps in reverse order.

Replacing the housekeeping board (HKBB)

The housekeeping (HKBB) board acts as an interface board with the majority of the control devices
feeding into it, including fans, power supply input, shutter, IR receivers, and so on.
1. Remove the top cover (on page 33).
2. Loosen the two captive screws securing the HKBB bracket and remove the bracket.
4K40-RGB Series Service Guide–D4K40-RGB, Roadie 4K40-RGB, Mirage 4K40-RGB
020-102960-02 Rev. 1 (12-2019)
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