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Section 4: Parts and Module Replacement
Entero RPMSP/RPMWU/RPMHD-LED01 Service Manual
4-7
020-100368-05 Rev. 1 (06-2012)
4.4.5 PHM Fan Pack Assembly 12V .5A 92mm
Estimated Replacement Time: 6 minutes
The PHM fan pack assembly is located against the inside of the PHM housing above the integrator and optics
assembly (IRO).
NOTICE:
Wear an ESD protective strap when replacing the PHM fan pack assembly.
1. Remove the lens. See
2. Place the PHM module face down in order to access to the back plate.
3. Loosen (4) 4 mm hex screws from the back plate of the PHM housing and remove it.
Figure 4-2 Remove PHM Back Plate
4. Remove (2) #1 Phillips® screws from the outside corners of the PHM fan pack assembly.
5. Use side cutters to cut the cable tie securing the RTSM harness to the fan pack assembly.
6. Unplug the RTSM harness from the RTSM attached to the fan pack.
7. Unplug both fan harnesses from the FDWU/FDSP assembly.
8. Remove the PHM fan pack assembly and place in an ESD protective bag.
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