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Section 5: Parts and Module Replacement
6. When replacing the cold mirror, repeat instructions in reverse. Make sure to place the cold mirror into the
holder with its reflective surface facing in. The reflective side will show no gap with its reflection when
an object is held at the surface; the non-reflective side will show a prominent gap (Figure 5-19).
After installation, LampLOC
required.
5.8.2 Fold Mirror
(Estimated Replacement Time: 30 minutes + 20 minute calibration)
The fold mirror is located under the front section of the projector.
1. Remove the four, #2 Phillips
projector. Remove cover plate.
2. Remove one, 2.5mm screw from each of the three tabs.
3. Loosen the other 2.5mm screw from each of the three tabs.
4. Holding the mirror in place, swing the tabs out to the side.
5. Carefully lower the mirror and remove.
6. When installing, repeat instructions in reverse. Adjust the Fold Mirror as needed. See
Alignment, on page 3-2
5.8.3 Illumination Optic System (IOS)
(Estimated Replacement Time: 120 minutes + 60 minutes
calibration)
The IOS is located in the front compartment of the projector and is
mounted to the baseplate. It includes all optical components
between the integrator assembly and light engine assembly.
1. Remove the front top lid. See
5.
2. Remove the high security lid. See
page 5-6.
3. Remove the integrator assembly. See
Assembly, on page 5-17.
4. Remove the light sensor module. See
Module, on page
5. Remove the light engine. See
23.
6. Remove the front frame plate of the projector.
7. Remove the four, 3/16" hex screws from under the front portion of the projector.
8. Lift the IOS out to clear the dowels.
9. When installing the IOS, repeat instructions in reverse. Perform an evaluation on the IOS removed and re-
calibrate the projector.
5-16
alignment and Measured Color Gamut Data (MCGD) calibration is
™
screws securing the fold mirror cover plate under the front portion of the
™
for details.
5.4.2 Front Top Lid, on page 5-
5.4.3 High Security Lid, on
5.8.4 Integrator
5.8.5 Light Sensor
5-17.
5.10 Light Engine, on page 5-
3.1 Fold Mirror
Figure 5-20 IOS Compartment
D4K25 Service Manual
020-100880-01 Rev. 1 (06-2012)
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