4 Units Description
4-31
4.6.3.1 Light Source Assembly
Figure 4-36 Dismounting Light Sourec Assembly
Dismounting steps are as follows:
1. The filter wheel is installed on the motor. Unscrew the M2.5X8 pan head screw and
remove the filter wheel.
2. Loosen the FT3X8 screws to replace the filter in the filter wheel. Refers to Chapter
7.6.3 for details about the filter replacement.
3. Loosen the M3X8 socket screw to repair or replace the sensor.
4. Loosen the two M3X25 socket screws to repair or replace the fan.
5. Loosen the retaining screw to remove or replace the lamp. Refers to Chapter 7.6.2
for details about the filter replacement.
6. Precautions:
1． Gently clean the surface of the filter with ethanol-soaked defatted cotton if it is
contaminated during installation
2． Don’t touch the glass surface of the lamp with hand.
3． Put on the clean white gloves when replacing the filter or the lamp.
4.6.3.2 Forward Optics Assembly
Dismount forward optics assembly is described as follows. (See Figure 4-35)
1． Remove the light source assembly.
2． Remove the reaction disk cover and the reaction disk.
3． Remove the forward optics assembly.
4． Remove the pre-amp housing assembly.
5． Reverse the steps described above to mount the forward optics assembly.
Precautions:
1． Unplug the connectors of the wire before removing the assemblies and plug the
connectors after installing.Don’t touch the glass surface of the lamp.
2． Be careful not to scrape the surface of the filter when removing the light source
assembly..
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