Christie D4K40-RGB Guide

4K-RGB Laser Optical

Subsystem

Replacement

Instructions

These instructions explain how to replace the 4K-RGB laser optical subsystem (LOS) using the H1LOS

service kit (P/N: 163-123107-XX).

Affected products

These instructions apply to the following products:

• Christie D4K40-RGB

• Christie Mirage 4K40-RGB

• Christie Roadie 4K40-RGB

• Christie CP4325-RGB

• Christie CP4330-RGB

Required tools

The following tools are required:

• 3 mm hex screwdriver

• 2.5 mm hex screwdriver

Optional tools

The following optional tools can be used to install the service kit:

• Foot adjustment tool (011-104952-XX)

• Calibrated torque driver

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 1

020-103107-02 Rev. 1 (07-2019)

H1LOS Kit contents

The H1LOS service kit (P/N: 163-123107-XX) contains the following components and tools.

Table 1: Kit Content Functionality

A Bench jack (1), shown packed and

extended

Use the bench jack to raise and lower the LOS. Do not use

the bench jack to raise or lower the projector

B Riser blocks (4) Use the riser blocks to raise a 4K40-RGB series unit to the

minimum height required to pull the bench jack and LOS out

from under the projector. Although not required, the riser

blocks can be used for CP43XX-RGB series.

C 4mm driver (1) Use the 4m driver for the LOS retaining screws only.

D Foot adjustment tool (1) Use the foot adjustment tool to rapidly spin the projector feet

to the desired height. The front notch of the foot adjustment

tool can also be used as a wrench.

E LOS grip handles (1) Attach the LOS grip handles to the projector as an alternative

to the bench jack, if manually turning over the projector to

access the LOS for replacement is preferable to raising it with

the riser blocks and working underneath.

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 2

020-103107-02 Rev. 1 (07-2019)

Setting up for LOS removal

Before LOS removal can start, the projector must be powered down, the area under and around the

projector must be clear of debris, the projector must be level and stable, and the service person must

be grounded. Follow the instructions provided below before removing covers or projector parts.

1. Remove power from the projector:

a) Turn off the projector's breakers.

b) Disconnect the AC input cable at the projector power source or open the breaker at the

external breaker box.

2. To prevent shocks and protect sensitive circuitry, ground yourself.

3. Ensure the projector stand, pedestal, or rack is stable and level. This is important to prevent

equipment damage.

4. Retain the projector feet using a Series II Rack Adapter kit. If no rack adapter kit is available,

it is still important to ensure the projector's feet are retained.

5. Clear all objects from under and around the projector.

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 3

020-103107-02 Rev. 1 (07-2019)

Removing projector components to allow for

LOS access

Carefully remove/disconnect the following items to gain access to and allow for safe removal of the

LOS.

1. Remove the lens shown on callout C.

2. Remove the right-side cover (intake side) shown on callout B.

3. Remove the left-side cover (electronics side) shown on callout A.

4. Remove the bottom cover shown on callout D.

5. Remove the rear cover shown on callout E.

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 4

020-103107-02 Rev. 1 (07-2019)

6. Disconnect the LOS cooling tube shown on callout F.

7. Disconnect the radiator cooling tubes at the three disconnects shown on callout G.

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 5

020-103107-02 Rev. 1 (07-2019)

8. Disconnect the radiator harness (at the panel mount, coming from the HKBB) as shown on

callout H.

9. Remove the radiator as shown on callout I by first removing the handles from the projector

frame, then by reattaching them in their lift positions.

10. Disconnect the two fan harnesses shown on callout J.

11. Remove the fan module assembly.

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 6

020-103107-02 Rev. 1 (07-2019)

12. Disconnect the laser driver card cage (LDCC) harnesses shown on callouts K and L.

13. Remove the LDCC (callout M).

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 7

020-103107-02 Rev. 1 (07-2019)

14. Disconnect the laser optical subsystem (LOS) harnessing shown on callout N.

The photographs above show the side view of the bracket in the left photo, and the front view

on the right.

15. Remove the rear left bottom cover mounting bracket.

Do not remove the coupling elbow within the rear IOS. The pins on the bottom of the coupling

elbow are required for LOS realignment later in the installation procedure.

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 8

020-103107-02 Rev. 1 (07-2019)

Removing the LOS

The height of the bench jack during removal of the LOS is important. The LOS must not drop or fall.

Exercise due diligence and caution when performing the following procedure.

1. To begin, carefully evaluate and set the projector's elevation.

a) Measure the distance between the projector chassis and the surface the projector is

resting on.

b) If the distance measured is less than 250 mm (10 inches), use the jacking nut on each

foot of the projector to raise the projector chassis. The 250 mm distance is for clearance,

to prevent LOS damage and to accommodate the bench jack during LOS removal and

replacement.

CP4325-RGB and CP4330-RGB (Cinema 4K-RGB) projectors are equipped with

feet that raise the projector the entire 250mm distance. If replacing the LOS on a

Cinema 4K-RGB projector, raise and level the projector as described in Steps 1

and 2 in this procedure, then proceed to Step 5.

Do not raise each foot the entire length of travel as this can destabilize the system and

potentially cause damage or injury. Rather, raise each foot sequentially, using a cross or

diagonal pattern, in 25 mm increments per foot, then repeat the entire sequence until the

required height for each foot has been achieved.

2. Level the projector, using the jacking nuts to adjust.

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 9

020-103107-02 Rev. 1 (07-2019)

3. Manually lift one end of the projector (either front or back) and position the stands (black)

under the feet. Christie recommends that two people perform this task.

4. Repeat Step 3 on the other end of the projector. Again, two people should work together for

both personnel and projector safety.

If replacing the LOS of a D4K40-RGB, Mirage 4K40-RGB, or Roadie 4K40-RGB unit,

use of the stands is mandatory to achieve the required 250mm height. The projector

feet must also be set to maximum height for these projector models.

5. Position the bench jack in the approximate center of the LOS cold plate.

4K-RGB Laser Optical Subsystem Replacement Instructions

4K-RGB Laser Optical Subsystem Replacement Instruction Sheet 10

020-103107-02 Rev. 1 (07-2019)

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