Maintenance
Disassembly and Reassembly 5
5-15
Fans
Two cooling fans are secured to the side of the chassis each with four pan head
screws. See Figure 5-8.
To remove one or both fans:
1. Remove the top cover from the Product.
2. Remove the air filter.
3. Remove the internal shield.
4. Remove the RF Output PCA.
5. 96270A - Remove the 27 GHz Control PCA.
6. Remove the Synthesizer PCA.
7. Disconnect the two, two-pin Molex connectors from the Power Supply PCA
by turning the Product on its side to gain access. On completion return the
Product onto its base position.
8. Remove the four panhead screws from each fan.
9. Cut the cable tie that holds the wires to chassis.
10. Lift the fan up and away from the chassis (similar to the air filter) making sure
that the Molex connector on the cable passes through the grommet without
jamming.
hpn379.eps
Figure 5-8. Removing the Fans
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