5-16
D4K25 Service Manual
020-100880-01 Rev. 1 (06-2012)
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 (
After installation, LampLOC
™
alignment and Measured Color Gamut Data (MCGD) calibration is
required.
5.8.2 Fold Mirror
(Estimated Replacement Time: 30 m 20 minute calibration)
The fold mirror is located under the front section of the projector.
1. Remove the four, #2 Phillips
™
screws securing the fold mirror cover plate under the front portion of the
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
5.8.3 Illumination Optic System (IOS)
(Estimated Replacement Time: 120 m 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
5.4.2 Front Top Lid, on page 5-
2. Remove the high security lid. See
3. Remove the integrator assembly. See
4. Remove the light sensor module. See
5. Remove the light engine. See
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.
Figure 5-20 IOS Compartment
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