Lad Fans (Ferrule Fan 22 And Integrator Diffuser Fan 23) - Christie CP42LH Service Manual

3. Remove the Fan pack
4. Loosen the screw securing the LAD hose to the blower bracket.
5. Pull the hose out of the bracket.
6. Remove the 2 screws securing the blower bracket to the base plate.
7. Remove the red LAD fan assembly from the projector and place it on a flat, stable surface.
8. Remove the 3 screws securing the filter housing to the blower bracket
9. Remove the filter housing and set it aside. Make sure the o-ring is not damaged or misplaced; it
will be reused.

LAD fans (Ferrule fan 22 and Integrator diffuser fan 23)

Estimated replacement time: 3 minutes per fan assembly
The LAD fans are build within the LAD housing and mounted to the IOS assembly.
1. Open the Optical access
2. Remove 4 self-tapping screws from the air filter compartment and remove the filter and LAD
housing cover.
3. Disconnect the inline connector.
4. Remove the fan harness from the routing clip.
5. Remove the fan assembly from the housing, noting the orientation of the label.
For proper cooling, ensure the fan is placed on the securing pins and the O-rings are
properly seated.
Liquid cooling assembly
The liquid cooling assembly is located across from the low voltage power supply (LVPS) in the
projection head. It provides primary cooling to the light engine DMDs.
Estimated replacement time: 23 minutes
1. Remove the Front top
2. Remove the Rear
3. Remove the LVPS/liquid cooling
4. Disconnect the 4 radiator fan connectors.
5. Disconnect the liquid cooling pump control harness.
6. Disconnect the 2 liquid cooling pump connectors.
7. Remove the liquid cooling hoses from the retaining clips.
8. Loosen the 3 captive screws securing the liquid cooling assembly pump and reservoir.
9. Remove the 8 screws securing the radiator blocks and fans.
10. Lift the liquid cooling assembly up and out of the projector.
CP42LH Service Manual
020-101686-03 Rev. 1 (08-2016)
assembly, see page 52.
door, see page 43.
lid, see page 41.
cover, see page 44..
cover, see page 44.
Parts and Module Replacement
56