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Section 5: Parts and Module Replacement
5.6
Fans
5.6.1 LAD Fan
(Estimated Replacement Time: 20 minutes + 4 minutes calibration)
The LAD Fan is located in the light engine compartment. It is mounted to the light engine handle.
1. Remove the front top lid. See
on page
5-5.
2. Remove the high security lid. See
Security Lid, on page 5-6.
3. Using a #2 Phillips
securing the LAD Fan assembly to the light engine
assembly handle (Figure 5-14).
4. Remove the four hex screws securing the filter
housing to the plastic frame.
5. Disconnect the LAD Fan harness (Fan 4) from the
inline connector.
6. Disconnect the three LAD hoses.
7. Remove the filter housing and O-ring.
8. Repeat above instructions in reverse to install a
LAD fan. Before connecting the LAD hoses turn
the power on (using the TPC) to blow out any
shavings which may have accumulated during the
removal and replacement process. This step ensures
no particles are deposited onto the DMDs. Once complete, re-connect the three LAD hoses again.
5-12
5.4.2 Front Top Lid,
5.4.3 High
, loosen the two screws
™
Figure 5-14 Remove LAD Fan Assembly
D4K25 Service Manual
020-100880-01 Rev. 1 (06-2012)
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