Replacing the Cinema
4K-RGB diffuser and
depolarizer
Christie has identified two optical component (diffuser and depolarizer) in the light path that may
degrade and cause a significant reduction in brightness. If this occurs, brightness can be recovered by
replacing the diffuser and depolarizer (which are found in the rear IOS assembly).
Affected products
The following products are affected.
• Christie CP4315-RGB
• Christie CP4320-RGB
• Christie CP4325-RGB
• Christie CP4330-RGB
• Christie CP4425-RGB
• Christie CP4435-RGB
Required components
Depending on the issue being solved, one of the following components is required.
•
Diffuser service kit for CP4315-RGB, CP4320-RGB, CP4330-RGB, CP4425-RGB, and CP4435-
RGB (P/N: 003-006917-XX)
•
Diffuser service kit for CP4325-RGB (P/N: 003-007089-XX)
•
Depolarizer service kit (P/N: 003-007097-XX)
Removing the integrator assembly
Remove the integrator assembly. For details on removing components, refer to the Cinema 4K-RGB
Service guide (P/N: 020-102713-XX).
1. Remove the rear cover.
2. Remove the card cage.
3. Remove the coolant reservoir.
4. If required, release the diffuser harness (J135) from the rear card cage security bracket clips.
Replacing the Cinema 4K-RGB Diffuser and Depolarizer Instruction Sheet
1
020-103544-05 Rev. 1 (08-2022)
Copyright
©
2022 Christie Digital Systems USA, Inc. All rights reserved.
If printed, please recycle this document after use.
