Housekeeping Board (Hkbg) For Cp4425-Rgb And Cp4435-Rgb - Christie CineLife+ CP4415-RGB Service Manual

Housekeeping board (HKBG) for CP4425-RGB
and CP4435-RGB
The housekeeping board (HKBG) 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 44).
2. Loosen the two screws securing the HKBG bracket and remove the bracket.
3. Disconnect the 19 harnesses from the housekeeping board.
The harnesses to disconnect: J6, J76, J77, J81, J85, J87, J89, J101, J102, J103, J104, J105,
J106, J110, J112, J113, J114, J129, and P8. Check the interconnect.
4. Loosen the two screws securing the HKBG tray to the projector, then remove the tray.
5. Remove the screws securing the HKBG board.
6. Place the new board, making sure to align it with the two locating pins.
7. To re-install, follow these steps in reverse order.
CineLife+ 4K-RGB Service Guide–CP4415-RGB, CP4420-RGB, CP4425-RGB, CP4435-RGB
020-103257-02 Rev. 1 (08-2022)
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If printed, please recycle this document after use.
Printed circuit boards and sensors
115